🔎 Honda BF40 Resource Center — Browse exploded parts diagrams (31 diagrams), specifications, and maintenance tips below. Scroll down to shop replacement parts for your Honda BF40.
The Honda BF40 is a 40-horsepower, 3-cylinder, 4-stroke outboard that has been one of Honda Marine's best-selling engines for decades. Available in both tiller and remote-control setups with electric or manual start, the BF40 is perfectly sized for aluminum bass boats, small fiberglass runabouts, jon boats, pontoons, and commercial skiffs. Honda's 4-stroke engineering provides outstanding fuel economy, minimal vibration, and the kind of quiet operation that makes long days on the water enjoyable. Later EFI models add the benefit of effortless cold starts and improved throttle response.
Whether your BF40 needs a routine impeller change or a complete lower-unit overhaul, WoMarine.com is your one-stop source for OEM replacement parts and aftermarket marine parts. Our catalog features exploded parts diagrams for every BF40 generation, making it easy to find and cross-reference the exact part you need. We are committed to supporting the DIY boat engine repair community with accurate information, competitive pricing, and fast delivery so you can get back on the water without delay.
Quick Reference Specifications
| Engine Type |
4-Stroke SOHC, 3-Cylinder, Carbureted / EFI (model dependent) |
| Displacement |
808 cc (49.3 cu in) |
| Bore x Stroke |
65 mm x 81 mm |
| Spark Plug (Type & Gap) |
NGK DPR6EA-9 / Gap: 0.8–0.9 mm (Refer to Owner's Manual) |
| Engine Oil Capacity |
Approx. 1.5 L |
| Recommended Engine Oil |
SAE 10W-30 (API SG or higher) |
| Gear Case Oil Capacity |
Approx. 370 mL |
| Idle Speed |
Refer to Owner's Manual |
| Full Throttle RPM Range |
5,000–6,000 RPM |
| Fuel |
Unleaded Gasoline (87 Octane or higher) |
Always verify specifications against your owner's manual for your specific serial number range, as Honda may update specs across production years.
Common Issues & Recommended Parts
The BF40 is a proven workhorse, but the marine environment places constant demands on every component. Here are the issues that BF40 owners encounter most frequently:
-
Overheating / Impeller Failure: The water pump impeller is the most commonly replaced wear item on the BF40. A failed impeller can cause rapid overheating and expensive powerhead damage. Replace the impeller kit every season or 200 hours.
-
Hard Starting & Idle Problems: On carbureted models, stale fuel deposits clog jets and passages. A carburetor rebuild kit and new fuel filter are the standard fix. EFI models may need injector cleaning and a new fuel filter to restore smooth operation.
-
Lower Unit Oil Leaks: The prop shaft and shift shaft seals take a beating from vibration and debris. Replace the full seal kit at the first sign of milky or water-contaminated gear oil.
-
Fuel System Component Wear: Ethanol attacks fuel hoses, primer bulbs, and diaphragms, causing cracks, swelling, and leaks. Annual inspection and replacement of all rubber fuel components prevents unexpected failure.
-
Corroded Anodes: The trim-tab anode and internal anodes protect the lower unit from electrolysis. Replace when approximately half consumed; saltwater users should check anodes monthly during peak season.
Parts Diagrams & OEM Part Numbers
Expand the sections below to view detailed exploded parts diagrams and find the exact OEM replacement components for your Honda BF40.
▶CAMSHAFT (13 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
12209-422-005 |
SEAL, VALVE STEM |
| 3 |
14481-ZV5-000 |
SPRING, ROCKER ARM A |
| 4 |
14482-ZV5-000 |
SPRING, ROCKER ARM B |
| 5 |
14621-ZV5-000 |
ARM, IN. ROCKER |
| 6 |
14636-ZV5-000 |
COLLAR, ROCKER |
| 8 |
14721-ZV5-000 |
VALVE, EX. |
| 9 |
14751-ZW4-000 |
SPRING, VALVE |
| 10 |
14765-ZV5-000 |
RETAINER, VALVE SPRING |
| 11 |
14775-ZV5-000 |
SEAT, VALVE SPRING |
| 12 |
14781-MB4-000 |
COTTER, VALVE |
| 13 |
90012-KK9-960 |
SCREW, TAPPET ADJUSTING |
| 14 |
90206-ML7-000 |
NUT, TAPPET ADJUSTING |
| 15 |
91201-ZV5-003 |
OIL SEAL (30X42X8) |
▶CARBURETOR (37 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
16011-ZV4-005 |
VALVE SET, FLOAT |
| 4 |
16013-ZV4-005 |
FLOAT SET |
| 5 |
16023-ZV3-000 |
CHAMBER SET, FLOAT |
| 6 |
16016-ZV3-000 |
SCREW SET |
| 7 |
16024-ZY3-000 |
SCREW SET, DRAIN |
| 8 |
16028-ZV3-000 |
SCREW SET |
| 9 |
16029-ZV3-000 |
SCREW SET |
| 10 |
16052-KG4-003 |
SPRING, COMPRESSION COIL |
| 11 |
16071-ZV4-005 |
SCREW, PLUG |
| 12 |
16081-ZV4-650 |
SCREW-WASHER |
| 18 |
16148-141-881 |
CAP, CHOKE DUST |
| 19 |
16150-ZV3-000 |
JET SET (#102) |
| 21 |
16211-ZW4-000 |
INSULATOR, CARBURETOR |
| 25 |
16574-ZV5-000 |
ARM A, CHOKE |
| 32 |
16960-ME9-000 |
PIPE, THREE WAY JOINT |
| 34 |
17151-ZV5-000 |
GASKET, IN. MANIFOLD |
| 35 |
17202-ZV5-310 |
COLLAR, DISTANCE |
| 37 |
17384-ZV5-000 |
GASKET, MUFFLER PLATE |
| 38 |
17881-ZV5-010 |
PIPE, INSTALL |
| 39 |
17957-ZV4-000 |
BUSH, LINKAGE |
| 41 |
90021-ZV5-000 |
BOLT, FLANGE (6X97) |
| 43 |
90511-ZV4-000 |
WASHER, PLAIN (6MM) |
| 44 |
90603-ZV4-000 |
CLIP, TUBE (B10) |
| 45 |
91503-ZV5-000 |
COLLAR, DISTANCE (6.5X10.5X16) |
| 47 |
93500-05010-0B |
SCREW, PAN (5X10) |
| 48 |
93500-06018-4J |
SCREW, PAN (6X18) |
| 49 |
95001-35003-60M |
BULK HOSE, FUEL (3.5X3000) (3.5X60) |
| 50 |
95001-35003-60M |
BULK HOSE, FUEL (3.5X3000) (3.5X60) |
| 51 |
95001-55003-60M |
BULK HOSE, FUEL (5.5X3000) (5.3X170) |
| 52 |
95001-55003-60M |
BULK HOSE, FUEL (5.5X3000) (5.3X170) |
| 53 |
95001-55003-60M |
BULK HOSE, FUEL (5.5X3000) (5.3X170) |
| 54 |
16881-ZV5-000 |
TUBE D, FUEL |
| 55 |
95003-05008-60M |
BULK HOSE, VINYL (3.5X6.5X8000) (3.5X6.5X200) |
| 56 |
95003-05008-60M |
BULK HOSE, VINYL (3.5X6.5X8000) (3.5X6.5X200) |
| 57 |
95701-06028-02 |
BOLT, FLANGE (6X28) |
| 58 |
96220-60150 |
ROLLER (6X15) |
| 59 |
99101-ZV5-0920 |
JET, MAIN (#92) |
▶CYLINDER BLOCK (22 parts)
| Ref |
OEM Part # |
Part Name |
| 5 |
15142-PE0-000 |
O-RING (4.8X1.9) |
| 6 |
15150-ZV5-000 |
ORIFICE ASSY., OIL PASSAGE |
| 8 |
19271-ZV5-000 |
JOINT, WATER HOSE |
| 9 |
19300-ZV5-043 |
THERMOSTAT ASSY. |
| 10 |
19315-ZV5-010 |
COVER, THERMOSTAT |
| 12 |
19361-ZV5-000 |
COVER, WATER JACKET |
| 13 |
19371-ZV5-000 |
GASKET, WATER JACKET COVER |
| 14 |
32116-ZV5-010 |
HOLDER, WIRE (A) |
| 15 |
37240-ZG3-E01 |
SWITCH, OIL PRESSURE |
| 17 |
90002-ZG5-004 |
SCREW-WASHER (4X8) |
| 19 |
90018-PN3-000 |
HOLDER, OIL FILTER |
| 20 |
90020-ZV5-000 |
BOLT, FLANGE (6X22) |
| 21 |
90122-ZV1-010 |
BOLT, FLANGE (6X12) |
| 23 |
90602-921-000 |
CLIP, TUBE (B8) |
| 24 |
91003-ZV5-003 |
BEARING, RADIAL BALL (6005) |
| 25 |
91202-ZV5-005 |
OIL SEAL (56X70X8) |
| 26 |
93500-06018-4J |
SCREW, PAN (6X18) |
| 27 |
94301-10120 |
PIN, DOWEL (10X12) |
| 28 |
94301-12160 |
PIN A, DOWEL (12X16) |
| 30 |
95701-06020-02 |
BOLT, FLANGE (6X20) |
| 31 |
95701-06040-02 |
BOLT, FLANGE (6X40) |
| 32 |
95701-08018-02 |
BOLT, FLANGE (8X18) |
▶CYLINDER HEAD (23 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
12010-ZV5-010ZA |
CYLINDER HEAD ASSY. *NH8* (DARK GRAY) |
| 2 |
12205-ZV5-325 |
GUIDE, VALVE (OVER SIZE) |
| 3 |
12228-ZV5-004 |
BOLT-WASHER (10X85) |
| 4 |
12251-ZW4-H01 |
GASKET, CYLINDER HEAD |
| 6 |
12314-ZV5-300 |
COLLAR, HEAD COVER |
| 7 |
12391-ZV5-010 |
GASKET, HEAD COVER |
| 8 |
14631-ZV5-000 |
SHAFT, IN. ROCKER ARM |
| 9 |
14632-ZV5-000 |
SHAFT, EX. ROCKER ARM |
| 11 |
15611-921-000 |
CAP, OIL (YELLOW) |
| 12 |
16700-ZW1-004 |
PUMP ASSY., FUEL (MSDS) |
| 13 |
16716-ZV5-000 |
LIFTER, FUEL PUMP |
| 15 |
90006-ZV5-000 |
BOLT, STUD (6X28) |
| 16 |
90018-ZV5-000 |
BOLT, FLANGE (6X70) |
| 17 |
90602-ZV5-013 |
CLAMP, TUBE (D22) |
| 18 |
90603-ZV4-000 |
CLIP, TUBE (B10) |
| 19 |
90604-ZV0-000 |
CLIP, TUBE (B12) |
| 20 |
90602-ZV3-030 |
CLAMP, TUBE (D18.8) |
| 21 |
91301-805-000 |
O-RING (26X2.7) |
| 23 |
94301-08140 |
PIN, DOWEL (8X14) |
| 24 |
94303-06100 |
PIN, DOWEL (6X10) |
| 25 |
95701-06035-02 |
BOLT, FLANGE (6X35) |
| 26 |
95701-08040-02 |
BOLT, FLANGE (8X40) |
| 27 |
96001-06020-02 |
BOLT, FLANGE (6X20) |
▶CYLINDER HEAD ASSEMBLY (0 parts)
▶ENGINE LOWER CASE (35 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
16900-SA5-004 |
FILTER, FUEL (TOYO ROKI) |
| 6 |
24210-ZV1-010 |
SPRING, CLICK |
| 7 |
24221-ZV4-010 |
SPRING, CLICK ASSIST |
| 9 |
24621-ZV4-010 |
BUSH, SHAFT |
| 10 |
24625-ZV5-010 |
PLATE, SHIFT |
| 11 |
24626-ZV5-010 |
PLATE, SHIFT SHAFT |
| 16 |
35616-ZV5-010 |
BRACKET, NEUTRAL SWITCH |
| 24 |
40102-ZV5-000 |
GROMMET, CASE (LOWER) |
| 25 |
40103-ZV5-000 |
SEAL, CASE (LOWER) |
| 26 |
40106-ZV5-000 |
GROMMET, CASE (LOWER) (B) |
| 27 |
40107-ZV5-000 |
GROMMET, CASE (LOWER) (C) |
| 29 |
40109-ZV5-000 |
GROMMET, CASE (LOWER) (E) |
| 31 |
40114-ZV5-010 |
GROMMET, CASE (LOWER) |
| 35 |
40151-ZV5-000ZA |
CASE, SEPARATE *NH282MU* (OYSTER SILVER METALLIC-U) |
| 36 |
63100-ZV5-010ZA |
COVER, ENGINE *NH282MU* (OYSTER SILVER METALLIC-U) |
| 37 |
63102-ZV5-300 |
SEAL, ENGINE COVER |
| 39 |
63240-ZV5-000 |
LEVER, FASTENER |
| 40 |
82873-ZV5-000 |
GROMMET, WATER CHECK |
| 41 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 42 |
90015-ZV0-000 |
BOLT, FLANGE (6X28) (CT200) |
| 43 |
90120-ZV4-010 |
BOLT, HEX. (6X40) |
| 45 |
90301-473-003 |
NUT, U (6MM) (FUSE RASHI) |
| 46 |
90302-ZV5-003 |
NUT, HEX. (20MM) |
| 47 |
90304-881-010 |
NUT (6MM) |
| 48 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 50 |
90512-921-010 |
WASHER (6MM) |
| 51 |
90603-ZV4-000 |
CLIP, TUBE (B10) |
| 52 |
90604-ZV0-000 |
CLIP, TUBE (B12) |
| 54 |
90659-735-921 |
CLIP, CORD |
| 56 |
90801-SB0-000 |
PLUG, CHANGE REINFORCEMENT |
| 57 |
91547-SF4-003 |
BAND, WIRE HARNESS (123.5MM) (BLUE) |
| 58 |
91553-ZV5-010 |
COLLAR, MODULE IGNITION CONTROL CASE (CDI) |
| 59 |
94103-06200 |
WASHER, PLAIN (6MM) |
| 60 |
94305-30203 |
PIN, SPRING (3X20) |
| 61 |
95701-06028-02 |
BOLT, FLANGE (6X28) |
▶EXTENSION CASE (48 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06412-ZV5-000 |
TAB KIT, TRIM |
| 2 |
17936-921-000 |
WASHER, PIVOT |
| 3 |
19280-ZV5-000 |
TUBE, WATER (LOWER) |
| 4 |
19286-ZV5-000 |
PLATE, RUBBER SETTING |
| 5 |
32161-KM3-003 |
BAND, WIRE |
| 8 |
40209-ZV5-000 |
RUBBER, DRAIN PLUG |
| 10 |
40212-ZV5-010ZA |
COVER, DRAIN PLUG *NH282MU* (OYSTER SILVER METALLIC-U) |
| 11 |
40219-ZY3-023 |
WIRE, LEAD (1.5X116MM) |
| 13 |
41104-ZV5-000 |
SCREEN, R. WATER |
| 14 |
41105-ZV5-000 |
SCREEN, L. WATER |
| 15 |
41107-ZV5-000 |
TAB, TRIM |
| 16 |
41108-ZV5-010 |
SCREEN, WATER (LOWER) |
| 17 |
41171-ZV5-000 |
END, NIPPLE |
| 18 |
41172-ZV5-000 |
NIPPLE, SENSOR |
| 19 |
50111-ZV5-000ZA |
HOUSING, R. MOUNTING (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U) |
| 20 |
50155-ZV5-000 |
RUBBER, MOUNT (LOWER) |
| 21 |
50161-ZV5-010ZA |
HOUSING, CENTER MOUNTING (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U) |
| 22 |
63701-ZV5-010ZA |
COVER (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U) |
| 23 |
63702-ZV5-000 |
RUBBER, COVER (LOWER) |
| 24 |
90009-ZV5-000 |
BOLT, HEX. (8X35) |
| 25 |
90105-ZVA-000 |
BOLT, OIL CHECK |
| 26 |
90110-ZV5-000 |
SCREW, SPECIAL (6X35) |
| 27 |
90115-ZV5-000 |
BOLT, HEX. (8X25) |
| 28 |
90117-ZV5-003 |
SCREW, RIVET (8X15) |
| 29 |
90118-ZV5-000 |
BOLT, HEX. (12X162) |
| 30 |
90119-ZV5-000 |
SCREW, PAN (6X8) |
| 31 |
90120-ZV5-003 |
BOLT, DRAIN PLUG (8MM) |
| 32 |
90122-ZV5-000 |
BOLT, HEX. (8X65) |
| 33 |
90123-ZV5-010 |
BOLT, HEX. (10X40) |
| 36 |
90126-ZV5-000 |
BOLT, HEX. (8X20) |
| 37 |
90127-ZV4-000 |
BOLT, HEX. (6X16) |
| 38 |
90302-ZV4-000 |
NUT, SELF-LOCK (5MM) |
| 41 |
90308-ZV5-003 |
NUT, SELF-LOCK (12MM) |
| 42 |
90311-ZV5-000 |
NUT, PLATE (5MM) |
| 43 |
90452-GK4-600 |
WASHER, PLAIN (5MM) |
| 45 |
90507-ZV4-000 |
WASHER, PLAIN (8MM) |
| 46 |
90552-ZV5-000 |
WASHER, PLAIN (12MM) |
| 48 |
90559-ZV5-000 |
WASHER, PLAIN (12MM) |
| 49 |
90563-ZV5-000 |
WASHER, PLAIN (10MM) |
| 51 |
90756-ZV5-000 |
PIN, DOWEL (6X10) |
| 52 |
91563-ZV5-000 |
COLLAR, DISTANCE (6X10.5X25) |
| 53 |
91566-ZV5-000 |
COLLAR, WATER SCREEN (LOWER) |
| 54 |
91568-ZV5-000 |
COLLAR, DISTANCE (5X7X38) |
| 55 |
91569-ZV5-000 |
COLLAR, DISTANCE (5X7X23) |
| 56 |
93500-05030-4J |
SCREW, PAN (5X30) |
| 57 |
93500-05045-4J |
SCREW, PAN (5X45) |
| 58 |
93700-05032-4J |
SCREW, OVAL (5X32) |
| 59 |
95005-50003-30M |
BULK HOSE, VACUUM (5X3000) (5X100) (5X200) (5X300) |
▶FLYWHEEL (5 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
30590-ZV5-003 |
COIL ASSY., EXCITER |
| 4 |
31630-ZV5-912 |
COIL ASSY., CHARGE (12V/10A) |
| 5 |
32117-ZV5-000 |
HOLDER, WIRE (B) |
| 7 |
90121-ZV0-010 |
BOLT, FLANGE (6X25) |
| 8 |
90122-ZV1-010 |
BOLT, FLANGE (6X12) |
▶FUEL TANK (16 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
04802-ZV5-A00 |
FUEL JOIN, SET |
| 2 |
16977-ZV5-A00 |
FITTING, QUICK DISCONNECT |
| 3 |
16979-ZV5-901 |
O-RING |
| 4 |
17500-ZZ5-711 |
TANK ASSY., FUEL |
| 5 |
17583-ZV5-901 |
FILTER, FUEL |
| 7 |
04104-ZW9-010 |
CONNECTOR ASSY., FUEL (A) |
| 8 |
17660-ZW9-003 |
CONNECTOR, FUEL |
| 9 |
17661-921-010 |
BULB, PRIMER |
| 10 |
17665-ZV5-000 |
VALVE, IN. |
| 11 |
17680-ZV4-000 |
VALVE, OUTLET |
| 12 |
04101-ZW9-010 |
TUBE ASSY., FUEL |
| 13 |
17701-ZV5-000 |
TUBE, FUEL LONG (7.3X2000) |
| 15 |
17703-921-010 |
BAND, TUBE CLIP (20MM) |
| 16 |
17704-ZV4-010 |
BAND, TUBE CLIP (12.5MM) |
| 18 |
17936-921-000 |
WASHER, PIVOT |
| 19 |
90013-ZV4-010 |
BOLT, FLANGE (6X20) (CT200) |
▶GASKET KIT (14 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
11381-ZV5-004 |
GASKET, OIL PAN |
| 2 |
12251-ZW4-H01 |
GASKET, CYLINDER HEAD |
| 3 |
12391-ZV5-010 |
GASKET, HEAD COVER |
| 4 |
15142-PE0-000 |
O-RING (4.8X1.9) |
| 6 |
17151-ZV5-000 |
GASKET, IN. MANIFOLD |
| 7 |
17384-ZV5-000 |
GASKET, MUFFLER PLATE |
| 8 |
17394-ZV5-000 |
GASKET, MUFFLER COVER |
| 9 |
18291-ZV5-010 |
GASKET, EX. PIPE |
| 11 |
19371-ZV5-000 |
GASKET, WATER JACKET COVER |
| 12 |
23162-ZV5-024 |
GASKET, PRIMARY GEAR CASE |
| 13 |
91301-ZV5-000 |
O-RING, PUMP COVER |
| 14 |
91301-805-000 |
O-RING (26X2.7) |
| 15 |
91303-377-000 |
O-RING (13.8X2.5) |
| 16 |
91302-KF0-003 |
O-RING (54X2.4) (ARAI) |
▶GASKET KIT (SHORT BLOCK & HEAD ASSY.) (0 parts)
▶GEAR CASE (1 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
41100-ZW4-H16ZA |
CASE ASSY., GEAR *NH282MU* (OYSTER SILVER METALLIC-U) |
▶HANDLEBAR (33 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
17929-ZV3-010 |
BRACKET, THROTTLE CABLE |
| 7 |
24617-ZV3-010 |
PLATE, SHIFT LINK (A) |
| 9 |
24626-ZV5-010 |
PLATE, SHIFT SHAFT |
| 12 |
35150-ZV3-003 |
SWITCH ASSY., STARTER |
| 14 |
36182-ZV4-651 |
WIRE, EMERGENCY |
| 15 |
36187-ZV4-652 |
CLIP, EMERGENCY LOCK |
| 16 |
40105-ZV3-000 |
GROMMET, CASE (LOWER) (A) |
| 17 |
50281-ZV3-000ZA |
HANDLE, CARRYING *NH282MU* (OYSTER SILVER METALLIC-U) |
| 20 |
53104-ZV3-000 |
BOLT, FRICTION |
| 22 |
53109-ZV3-000 |
RUBBER, HANDLE MOUNTING |
| 23 |
53111-ZV3-010 |
PLATE, HANDLEBAR |
| 25 |
53148-ZV3-000 |
SPRING, GRIP PIPE |
| 26 |
53165-ZV4-000 |
RUBBER, GRIP |
| 27 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 28 |
90119-ZV5-000 |
SCREW, PAN (6X8) |
| 29 |
90123-ZV3-000 |
SCREW, PAN (5X12) |
| 30 |
90127-ZV4-000 |
BOLT, HEX. (6X16) |
| 31 |
90205-PP9-020 |
NUT, SELF-LOCK (6MM) |
| 32 |
90302-921-000 |
NUT, HEX. (16MM) |
| 33 |
90306-ZV5-003 |
NUT, SELF-LOCK (10MM) |
| 34 |
90452-GK4-600 |
WASHER, PLAIN (5MM) |
| 35 |
90514-ZV4-000 |
WASHER (10MM) |
| 36 |
90515-ZV3-000 |
WASHER, HANDLEBAR (36MM) |
| 37 |
90543-ZV3-000 |
WASHER (10MM) |
| 38 |
90759-ZV1-000 |
PIN, SPLIT (2.0) |
| 39 |
91451-ZV3-003 |
TUBE, SPIRAL |
| 40 |
91475-SB6-000 |
CLIP, WIRE HARNESS (6.3MM) |
| 41 |
91503-ZV5-000 |
COLLAR, DISTANCE (6.5X10.5X16) |
| 42 |
91559-ZV3-000 |
COLLAR, HANDLEBAR |
| 43 |
94002-06490-0S |
NUT, HEX. (6MM) |
| 44 |
94305-40203 |
PIN, SPRING (4X20) |
| 45 |
94305-40283 |
PIN, SPRING (4X28) |
| 46 |
95801-06028-02 |
BOLT, FLANGE (6X28) |
▶IGNITION COIL (1) (12 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
30513-ZV5-003 |
COIL, IGNITION (3) |
| 5 |
30516-ZV5-003 |
SUSPENSION, IGNITION COIL |
| 8 |
30588-ZV5-013 |
COVER, IGNITION CONTROL MODULE (CDI) |
| 9 |
30598-ZV5-000 |
GROMMET, MODULE IGNITION CONTROL CASE (CDI)(B) |
| 11 |
32106-ZV5-010 |
BRACKET, CONNECTOR (A) |
| 13 |
32805-413-000 |
CLIP, TURN SIGNAL WIRE |
| 15 |
40102-ZV5-000 |
GROMMET, CASE (LOWER) |
| 16 |
90121-ZV0-010 |
BOLT, FLANGE (6X25) |
| 17 |
90122-ZV1-010 |
BOLT, FLANGE (6X12) |
| 19 |
91553-ZV5-010 |
COLLAR, MODULE IGNITION CONTROL CASE (CDI) |
| 20 |
94103-06200 |
WASHER, PLAIN (6MM) |
| 21 |
95701-06020-02 |
BOLT, FLANGE (6X20) |
▶IMPELLER HOUSING (39 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
19210-ZV5-003 |
IMPELLER, PUMP |
| 2 |
19221-ZV5-000 |
HOUSING, IMPELLER |
| 3 |
19223-ZV5-000 |
LINER, PUMP |
| 4 |
19231-ZV5-000 |
COVER, IMPELLER |
| 5 |
19233-ZV5-000 |
GASKET B, IMPELLER |
| 6 |
19241-ZV5-000 |
HOUSING, WATER PUMP |
| 7 |
19242-ZV5-000 |
GASKET, WATER PUMP |
| 8 |
19251-ZV5-701 |
TUBE, WATER (L) |
| 9 |
19253-ZV5-000 |
RING, WATER TUBE SEAL |
| 10 |
04402-ZW4-700 |
ROD, SHIFT (L) |
| 11 |
24312-ZV5-000 |
JOINT, SHIFT ROD |
| 12 |
24313-ZV5-000 |
GROMMET, SHIFT ROD |
| 13 |
24316-ZV5-000 |
BAND A, GROMMET |
| 14 |
24317-ZV5-000 |
BAND B, GROMMET |
| 15 |
24320-ZV5-000 |
ROD A, SHIFT |
| 16 |
24341-ZV5-701 |
ROD, PUSH |
| 17 |
24343-ZV5-700 |
HOLDER, SEAL |
| 19 |
40204-ZV5-000 |
GROMMET, EXTENSION CASE |
| 20 |
41112-ZV5-701 |
SHAFT, VERTICAL (L) |
| 21 |
41116-ZV5-000 |
SLINGER, OIL |
| 22 |
41131-ZV5-000 |
GEAR, PINION |
| 23 |
90105-881-000 |
BOLT, HEX. (6X12) |
| 24 |
90114-881-000 |
BOLT, HEX. (6X40) |
| 25 |
90303-ZV5-000 |
NUT, SPECIAL (12MM) |
| 26 |
90452-GK4-600 |
WASHER, PLAIN (5MM) |
| 27 |
90512-921-010 |
WASHER (6MM) |
| 28 |
90521-ZV5-000 |
SHIM, GEAR (40X46X0.50) (D) |
| 29 |
90752-ZV5-003 |
KEY, WOODRUFF |
| 30 |
90754-921-010 |
PIN (5X17) |
| 31 |
90756-921-000 |
PIN, SPLIT (1.6MM) |
| 32 |
91052-ZV5-003 |
BEARING, NEEDLE (7/8X11/8X1) |
| 33 |
91054-ZV5-003 |
BEARING (25X47X15) |
| 34 |
91251-ZV5-003 |
SEAL, WATER (17X30X7) |
| 36 |
91353-ZV5-003 |
O-RING (47X3.1) |
| 37 |
91356-ZV5-000 |
O-RING, WATER PUMP |
| 38 |
91555-ZV5-000 |
COLLAR, IMPELLER HOUSING |
| 39 |
94002-08490-0S |
NUT, HEX. (8MM) |
| 40 |
94305-20122 |
PIN, SPRING (2X12) |
| 41 |
96220-30148 |
ROLLER (3X14.8) |
▶INLET MANIFOLD (14 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
16400-ZV5-015 |
DIAPHRAGM ASSY. |
| 3 |
17838-ZV5-000 |
LINKAGE, PIVOT |
| 5 |
17927-ZV5-000 |
PLATE, ASSIST |
| 6 |
17928-ZV5-000 |
SPRING, ASSIST |
| 7 |
17937-ZV5-010 |
CAM, THROTTLE OPENER |
| 8 |
17938-ZV5-000 |
SPRING, OPENER CAM RETURN |
| 9 |
17946-ZV5-000 |
CAM, THROTTLE |
| 10 |
90011-ZV5-003 |
BOLT, TORX (6X14) |
| 11 |
90202-ZV0-000 |
NUT, CAP (6MM) |
| 12 |
90511-ZV4-000 |
WASHER, PLAIN (6MM) |
| 13 |
91504-ZV5-000 |
COLLAR (6.7X12.5X24) |
| 14 |
94001-05490-0S |
NUT, HEX. (5MM) |
| 15 |
95701-06032-02 |
BOLT, FLANGE (6X32) |
| 16 |
95701-06040-02 |
BOLT, FLANGE (6X40) |
▶MARKS (10 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
87121-ZW3-000 |
MARK, RR. (40) |
| 8 |
87131-ZV7-010 |
MARK, SIDE |
| 9 |
87132-ZW4-000 |
MARK, SIDE STRIPE |
| 11 |
87511-ZV5-620 |
MARK, CHANGE (ENGLISH) |
| 12 |
87531-ZW4-720 |
LABEL, OIL CAUTION (ENGLISH) |
| 14 |
87535-ZV5-620 |
LABEL, STORING CAUTION (ENGLISH) |
| 15 |
87538-ZW1-740 |
LABEL, WARNING OPERATOR (ENGLISH) |
| 16 |
87541-ZV5-621 |
LABEL, ASSIST TILT CAUTION (ENGLISH) |
| 17 |
87543-ZV5-000 |
MARK, ASSIST LEVER (ENGLISH) |
| 18 |
87546-ZV5-621 |
MARK, EMERGENCY START (ENGLISH) |
▶MUFFLER COVER (5 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
17394-ZV5-000 |
GASKET, MUFFLER COVER |
| 9 |
90545-323-700 |
WASHER (6.5X18) |
| 11 |
91405-PM5-004 |
CLAMP, TUBE (D17) |
| 13 |
95701-06025-02 |
BOLT, FLANGE (6X25) |
| 14 |
95701-06040-02 |
BOLT, FLANGE (6X40) |
▶OIL PAN (18 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
11381-ZV5-004 |
GASKET, OIL PAN |
| 4 |
15650-ZV5-000 |
DIPSTICK, OIL |
| 6 |
23134-ZV5-000 |
SPRING, THRUST |
| 9 |
23162-ZV5-024 |
GASKET, PRIMARY GEAR CASE |
| 10 |
23437-ZV5-000 |
GEAR, PRIMARY DRIVEN (33T) |
| 11 |
90009-ZV5-000 |
BOLT, HEX. (8X35) |
| 12 |
90010-ZV5-000 |
BOLT, HEX. (8X55) |
| 13 |
90113-ZV5-000 |
BOLT, HEX. (6X25) |
| 14 |
90131-ZV5-000 |
BOLT, DRAIN PLUG |
| 15 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 16 |
90507-ZV4-000 |
WASHER, PLAIN (8MM) |
| 17 |
90601-ZE2-000 |
WASHER, DRAIN PLUG (12MM) |
| 18 |
91024-ZV5-003 |
BEARING, RADIAL BALL (6205) |
| 19 |
91204-ZV5-005 |
OIL SEAL (25X40X7) |
| 20 |
91221-ZV5-005 |
SEAL, WATER (17X26X7) |
| 21 |
94303-06100 |
PIN, DOWEL (6X10) |
| 22 |
95701-08075-08 |
BOLT, FLANGE (8X75) |
| 23 |
18291-ZV5-010 |
GASKET, EX. PIPE |
▶OIL PUMP (21 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
15100-ZV5-000 |
PUMP ASSY., OIL |
| 2 |
15116-ZV5-000 |
COVER, OIL PUMP |
| 3 |
15122-ME5-000 |
ROTOR (INNER) |
| 4 |
15132-ZV5-000 |
SHAFT, OIL PUMP |
| 5 |
15162-393-000 |
ROTOR A (OUTER) |
| 6 |
15220-ZV5-000 |
STRAINER, OIL |
| 7 |
15231-413-020 |
VALVE, RELIEF |
| 8 |
15232-KT8-000 |
SPRING, RELIEF VALVE |
| 9 |
15236-ZV5-010 |
BOLT, SEALING (14MM) |
| 10 |
15302-PE0-300 |
WASHER, SEALING (14MM) |
| 12 |
19252-ZV5-000 |
GROMMET, WATER TUBE |
| 14 |
90115-ZV5-000 |
BOLT, HEX. (8X25) |
| 15 |
90456-MC7-000 |
WASHER, THRUST (13MM) |
| 17 |
90507-ZV4-000 |
WASHER, PLAIN (8MM) |
| 18 |
91301-ZV5-000 |
O-RING, PUMP COVER |
| 19 |
91303-377-000 |
O-RING (13.8X2.5) |
| 20 |
91302-KF0-003 |
O-RING (54X2.4) (ARAI) |
| 22 |
95701-06016-00 |
BOLT, FLANGE (6X16) |
| 23 |
95701-06055-02 |
BOLT, FLANGE (6X55) |
| 24 |
96220-50178 |
ROLLER (5X17.8) |
| 25 |
18330-ZV5-020 |
PIPE, EX. |
▶PISTON (14 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
13011-ZV5-010 |
RING SET, PISTON (STD) |
| 2 |
13101-ZV5-010 |
PISTON (STD) |
| 4 |
13204-PE1-003 |
BOLT, CONNECTING ROD |
| 5 |
13205-634-010 |
NUT, CONNECTING ROD |
| 7 |
13217-ZV5-003 |
BEARING G, CONNECTING ROD (RED) (DAIDO) |
| 8 |
13311-ZV5-000 |
CRANKSHAFT |
| 9 |
13327-P36-003 |
BEARING G, MAIN (RED) (DAIDO) |
| 10 |
13331-679-003 |
WASHER, THRUST |
| 11 |
23413-ZV5-000 |
GEAR C, PRIMARY DRIVE (26T) (YELLOW) |
| 12 |
90202-PB6-010 |
NUT, FLANGE (22MM) |
| 13 |
90473-ZV5-000 |
WASHER (22MM) |
| 14 |
94303-06100 |
PIN, DOWEL (6X10) |
| 15 |
94401-25140 |
KEY, WOODRUFF (25X14) |
| 16 |
94601-18000 |
CLIP, PISTON PIN (18MM) |
▶POWER TRIM-TILT (7 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
50517-ZV5-000 |
LEVER, TILT |
| 3 |
50543-ZV5-000 |
GRIP, LEVER |
| 6 |
56512-ZV5-000 |
BUSH, CYLINDER (UPPER) |
| 7 |
56532-ZZ5-C00 |
PIN, CYLINDER (UPPER) |
| 10 |
92101-06025-4J |
BOLT, HEX. (6X25) |
| 11 |
94001-06490-0S |
NUT, HEX. (6MM) |
| 12 |
94540-10029 |
E-RING (10MM) |
▶PROPELLER (26 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
24102-ZV5-000 |
PIN, SHIFTER (6.3X33) |
| 3 |
24103-ZV5-000 |
RING, CROSS PIN |
| 4 |
24106-ZV5-000 |
HOLDER, SHIFTER PIN |
| 5 |
24122-ZV5-000 |
SLIDER, SHIFT |
| 6 |
24123-ZV5-003 |
SPRING, SHIFT |
| 7 |
41109-ZV5-000 |
NUT, GEAR CASE END |
| 9 |
41151-ZV5-010 |
GEAR, RR. BEVEL |
| 11 |
41200-ZV5-030 |
HOLDER ASSY., PROPELLER SHAFT |
| 12 |
58130-ZV5-870ZA |
PROPELLER, THREE-BLADE (11-1/2X14-1/4) *NH283* (STIN GRAY) |
| 13 |
58151-ZV5-000 |
SPACER (10MM) |
| 14 |
90301-ZV5-000 |
NUT, CASTLE (16MM) |
| 15 |
90503-ZV5-000 |
WASHER (22MM) |
| 16 |
90506-ZZ5-C00 |
WASHER, PROPELLER THRUST |
| 17 |
90508-ZV5-000 |
WASHER (17MM) |
| 18 |
90509-ZV5-000 |
WASHER, CLAW |
| 19 |
90531-ZV5-000 |
SHIM, FR. BEVEL (51X57X0.50) (D) |
| 20 |
90541-ZV5-000 |
SHIM, RR. BEVEL (73X77X0.50) (D) (NOT AVAILABLE) |
| 21 |
90548-ZV5-010 |
WASHER, PLAIN (54MM) |
| 22 |
90758-ZV5-000 |
PIN, SPLIT (4.0) |
| 23 |
91051-ZV5-003 |
BEARING (32X58X17) |
| 24 |
91053-ZV5-003 |
BEARING, NEEDLE (22X28X20) |
| 25 |
91252-ZV5-003 |
SEAL, WATER (22X35X7) |
| 26 |
91351-ZV5-003 |
O-RING (66X5.7) |
| 27 |
96100-60070-00 |
BEARING, RADIAL BALL (6007) |
| 28 |
96211-11000 |
BALL, STEEL (#11) (11/32) |
| 30 |
41201-ZV5-000 |
HOLDER, PROPELLER SHAFT |
▶PUMP IMPELLER KIT (8 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06190-ZV1-860 |
JOINT KIT, WATER HOSE |
| 3 |
19210-ZV5-003 |
IMPELLER, PUMP |
| 4 |
19223-ZV5-000 |
LINER, PUMP |
| 5 |
19231-ZV5-000 |
COVER, IMPELLER |
| 6 |
19233-ZV5-000 |
GASKET B, IMPELLER |
| 7 |
19270-881-812 |
NUT, WATER MOUTH |
| 8 |
19271-ZV1-810 |
JOINT, WATER HOSE |
| 9 |
19272-881-810 |
SEAT, WATER MOUTH |
▶REMOTE CONTROL CABLE (11 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
31600-ZV5-003 |
RECTIFIER ASSY., REGULATOR (12A) |
| 5 |
32121-HA0-003 |
BAND, WIRE |
| 8 |
32411-ZV5-003 |
COVER, TERMINAL |
| 11 |
32660-MJ6-710 |
CLAMP, WIRE |
| 12 |
32903-701-000 |
CLAMP, IGNITION WIRE |
| 28 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 31 |
90203-ZV5-000 |
NUT, HEX. (6MM) |
| 38 |
90682-ZV5-003 |
CLIP, WIRE HARNESS |
| 39 |
95701-06020-02 |
BOLT, FLANGE (6X20) |
| 40 |
95701-08012-02 |
BOLT, FLANGE (8X12) |
| 42 |
98200-31500 |
FUSE, BLADE (15A) |
▶SHORT BLOCK (0 parts)
▶STARTER MOTOR (21 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
31216-ZV5-003 |
YOKE |
| 4 |
31217-ZV5-003 |
ARMATURE |
| 6 |
31231-ZV5-003 |
HOLDER, BRUSH (NOT AVAILABLE) |
| 7 |
31233-ZV5-003 |
BUSH (M) |
| 9 |
31236-ZV5-003 |
BRACKET, RR. |
| 10 |
31239-ZV5-003 |
CAP, STOPPER |
| 11 |
31261-ZV5-003 |
BOLT, THROUGH |
| 12 |
31295-ZV5-003 |
BRUSH |
| 15 |
32411-402-000 |
COVER, STARTER MOTOR TERMINAL |
| 16 |
32412-ZV5-003 |
COVER, MAGNETIC SWITCH |
| 17 |
35850-ZV5-003 |
SWITCH ASSY., STARTER MAGNETIC |
| 18 |
90015-ZV5-003 |
SCREW (4MM) |
| 19 |
90122-ZV1-010 |
BOLT, FLANGE (6X12) |
| 20 |
90203-ZV5-000 |
NUT, HEX. (6MM) |
| 21 |
90204-ZV5-003 |
NUT (1) |
| 22 |
90205-ZV5-003 |
NUT (2) |
| 23 |
90407-ZV5-003 |
WASHER (1) |
| 24 |
90408-ZV5-003 |
WASHER (2) |
| 26 |
94301-10160 |
PIN, DOWEL (10X16) |
| 27 |
95701-06028-02 |
BOLT, FLANGE (6X28) |
| 28 |
95701-08045-02 |
BOLT, FLANGE (8X45) |
▶STERN BRACKET (19 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06411-ZV5-020 |
METAL KIT, ANODE |
| 3 |
50311-ZV5-010ZA |
BRACKET, L. STERN *NH282MU* (OYSTER SILVER METALLIC-U) |
| 5 |
50331-ZV5-000 |
CAP, TILTING BOLT |
| 8 |
50342-ZV5-300 |
STOPPER, ROD |
| 9 |
50343-921-300 |
SPRING, ADJUSTING ROD |
| 10 |
50381-ZZ5-000 |
SHAFT, TILTING |
| 12 |
56513-ZV5-000 |
BUSH, CYLINDER (LOWER) |
| 13 |
90108-ZV5-000 |
BOLT, HEX. (10X158) |
| 14 |
90113-ZV5-000 |
BOLT, HEX. (6X25) |
| 16 |
90304-ZV5-013 |
NUT, SELF-LOCK (7/8-14UNF) |
| 17 |
90306-ZV5-003 |
NUT, SELF-LOCK (10MM) |
| 18 |
90308-ZV5-003 |
NUT, SELF-LOCK (12MM) |
| 20 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 21 |
90517-ZV5-000 |
WASHER, WAVE (22MM) |
| 22 |
90545-ZV5-000 |
WASHER, PLAIN (10MM) |
| 23 |
90552-ZV5-000 |
WASHER, PLAIN (12MM) |
| 24 |
90559-ZV5-000 |
WASHER, PLAIN (12MM) |
| 27 |
91556-ZZ5-C00 |
COLLAR, DISTANCE (10X90) |
| 29 |
94305-25083 |
PIN, SPRING (2.5X8) |
▶SWIVEL CASE (20 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
50151-ZV5-000 |
RUBBER, MOUNTING (UPPER) |
| 5 |
50153-ZV5-000 |
RUBBER, MOUNTING (UPPER) (B) |
| 8 |
50211-ZV5-003 |
LINER, SWIVEL CASE |
| 10 |
50214-ZV5-003 |
BUSH, SWIVEL CASE |
| 11 |
50233-881-000 |
SPRING, FRICTION ADJUSTING |
| 12 |
50515-ZV5-000 |
SPRING, TILT LEVER |
| 13 |
50522-ZV5-000 |
BUSH, TILT ARM |
| 14 |
50527-ZV5-000 |
BRACKET, TILTING |
| 16 |
90101-ZV1-000 |
BOLT, HEX. (6X18) |
| 17 |
90101-ZV5-003 |
BOLT, SPECIAL (10X130) |
| 19 |
90109-ZV4-000 |
BOLT, SPECIAL (8X20) |
| 20 |
90109-ZV5-000 |
BOLT, STUD (10X28) |
| 22 |
90306-ZW4-003 |
NUT, FLANGE (10MM) |
| 25 |
90501-ZV5-000 |
WASHER, WAVE (40MM) |
| 26 |
90504-ZV5-000 |
WASHER, THRUST (34MM) |
| 27 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 30 |
90651-ZV5-000 |
CIRCLIP (OUTER) (39MM) |
| 31 |
90951-ZV7-010 |
NIPPLE, GREASE |
| 32 |
91256-ZV5-003 |
OIL SEAL (39.5X52X6) (ARAI) |
| 34 |
94305-25203 |
PIN, SPRING (2.5X20) |
▶TIMING BELT TENSIONER (14 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
14323-ZV5-000 |
PLATE, TIMING BELT GUIDE |
| 4 |
14400-ZV5-014 |
BELT, TIMING |
| 6 |
14515-ZV5-000 |
CAP, TIMING BELT TENSIONER |
| 7 |
14520-ZV5-020 |
SPRING, TIMING BELT ADJUSTING |
| 8 |
14522-ZV5-000 |
BOOT, SPRING |
| 10 |
30410-ZV5-000 |
ROTOR, PULSER (44T) |
| 12 |
40102-ZV5-000 |
GROMMET, CASE (LOWER) |
| 13 |
90031-ZV5-000 |
BOLT, FLANGE (10X32) |
| 14 |
90202-ZV5-000 |
NUT, LOCK (48MM) |
| 16 |
91553-ZV5-010 |
COLLAR, MODULE IGNITION CONTROL CASE (CDI) |
| 17 |
94103-06200 |
WASHER, PLAIN (6MM) |
| 18 |
95701-06025-02 |
BOLT, FLANGE (6X25) |
| 19 |
95701-10038-08 |
BOLT, FLANGE (10X38) |
| 20 |
96001-06012-02 |
BOLT, FLANGE (6X12) |
▶TOOLS (7 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
28470-816-000 |
ROPE, STARTER |
| 5 |
89301-921-010 |
SCREWDRIVER, CHECK BOLT |
| 6 |
99001-10120 |
SPANNER (10X12) |
| 7 |
89210-GBJ-J10 |
PLIERS (135) (KOWA) |
| 8 |
99003-10000 |
DRIVER 1, PLUS SCREW (NO.2) |
| 9 |
99003-30000 |
DRIVER 3, MINUS SCREW (NO.2) |
| 10 |
99003-40000 |
LEVER |
100-Hour / Annual Service Checklist
Regular maintenance is the best investment you can make in your Honda BF40. The following checklist covers the standard 100-hour / annual service and can be completed in a couple of hours with basic marine tools and parts from WoMarine.com.
- Change engine oil and replace the oil filter (if equipped on your model).
- Replace all three spark plugs and check the electrode gap.
- Drain and refill gear case oil; inspect the drained oil for water or metal particles.
- Replace the water pump impeller; inspect the housing, plate, and gaskets.
- Clean or replace the fuel filter; inspect fuel lines, connectors, and the primer bulb.
- Clean the carburetor jets (carbureted models) or inspect EFI fuel system components.
- Inspect and replace all sacrificial anodes as needed.
- Inspect the propeller for nicks, bends, and fishing-line wrap; grease the shaft splines.
- Lubricate throttle and shift cables, steering tube, and all zerk fittings.
- Check the battery terminals, charging system output, and all electrical connections.
Pro Tips:
- After every saltwater outing, flush the cooling system with fresh water for at least five minutes. Use earmuff-style flush adapters on the lower-unit water intakes while running the engine at idle.
- Apply marine-grade anti-seize to propeller shaft splines and spark plug threads during every service. This prevents corrosion-induced seizure and makes future maintenance significantly easier.