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Honda BF45 Parts

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🔎 Honda BF45 Resource Center — Browse exploded parts diagrams (32 diagrams), specifications, and maintenance tips below. Scroll down to shop replacement parts for your Honda BF45.

The Honda BF45 is a 45-horsepower, 3-cylinder, 4-stroke outboard engine that fills the niche between Honda's lighter 40 HP models and the larger 50 HP class. Equipped with electronic fuel injection and Honda's multi-port fuel delivery system, the BF45 provides brisk acceleration, smooth idle, and excellent fuel economy for aluminum fishing boats, pontoon boats, rigid inflatables, and light center consoles. Its relatively compact and lightweight package makes it easy to mount on a wide range of transoms.

Keeping the BF45 at peak performance is simple when you have access to the right parts and information. WoMarine.com stocks a complete range of OEM replacement parts and aftermarket marine parts for the Honda BF45, all presented with exploded parts diagrams so you can quickly identify the exact component you need. From water pump kits to complete gasket sets, our catalog supports everything from seasonal tune-ups to full-scale DIY boat engine repair, helping you maintain professional-level quality at a do-it-yourself price.

Quick Reference Specifications

Engine Type 4-Stroke SOHC, 3-Cylinder, Electronic Fuel Injection
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 BF45 shares its block with the BF35 and BF40, so many maintenance items and common failure points are familiar. Here are the issues to watch for:

  • Overheating / Water Pump Wear: A deteriorating impeller reduces water flow to the powerhead. Replace the water pump impeller kit every season or 200 hours to keep the engine cool and prevent costly overheating damage.
  • Rough Idle or Hesitation: Dirty fuel injectors and a clogged fuel filter are the most common causes of EFI performance issues. Replace the fuel filter element and run a quality marine fuel-system cleaner through the engine periodically.
  • Gear Case Seal Failure: Water intrusion into the lower unit destroys gears and bearings quickly. Inspect gear oil at every drain for milky appearance or metal particles and replace the seal kit proactively.
  • Ethanol-Related Fuel Damage: Fuel hoses, O-rings, and diaphragms break down faster with ethanol-blended fuel. Replace all rubber fuel-system components on an annual basis to prevent leaks and vapor lock.
  • Zinc Anode Wear: Sacrificial anodes corrode by design to protect the engine's aluminum castings. Inspect at every service and replace when half depleted, especially in saltwater.

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 BF45.

CAMSHAFT (13 parts) CAMSHAFT
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 (40 parts) CARBURETOR
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
14 16101-ZV5-010 CARBURETOR ASSY. (#1.2)
18 16148-141-881 CAP, CHOKE DUST
19 16150-ZV5-000 JET SET (#125)
21 16211-ZW4-000 INSULATOR, CARBURETOR
22 16221-ZV5-000 GASKET, 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
40 36135-ZV5-004 VALVE, DASHPOT CHECK
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 95005-35001-20M BULK HOSE, VACUUM (3.5X1000) (3.5X190)
56 95005-35001-20M BULK HOSE, VACUUM (3.5X1000) (3.5X190)
57 95701-06028-02 BOLT, FLANGE (6X28)
58 96220-60150 ROLLER (6X15)
59 99101-ZV5-1250 JET, MAIN (#125)
CHARGE COIL KIT (3 parts) CHARGE COIL KIT
Ref OEM Part # Part Name
2 31630-ZV5-912 COIL ASSY., CHARGE (12V/10A)
3 32117-ZV5-000 HOLDER, WIRE (B)
4 90122-ZV1-010 BOLT, FLANGE (6X12)
CYLINDER BLOCK (22 parts) CYLINDER BLOCK
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) CYLINDER HEAD
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) ENGINE LOWER CASE
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 (49 parts) EXTENSION CASE
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)
47 90553-ZV5-000 WASHER, DRAIN PLUG (8MM)
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 (2 parts) FLYWHEEL
Ref OEM Part # Part Name
1 30590-ZV5-003 COIL ASSY., EXCITER
7 90121-ZV0-010 BOLT, FLANGE (6X25)
FUEL TANK (16 parts) FUEL TANK
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 (15 parts) GASKET KIT
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)
5 16221-ZV5-000 GASKET, CARBURETOR
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) GEAR CASE
Ref OEM Part # Part Name
1 41100-ZW4-H16ZA CASE ASSY., GEAR *NH282MU* (OYSTER SILVER METALLIC-U)
HANDLEBAR (33 parts) HANDLEBAR
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) IGNITION COIL (1)
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) IMPELLER HOUSING
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) INLET MANIFOLD
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 (8 parts) MARKS
Ref OEM Part # Part Name
8 87131-ZV5-000 MARK, SIDE STRIPE (NOT AVAILABLE)
9 87132-ZV5-000 MARK, SIDE STRIPE (NOT AVAILABLE)
11 87511-ZV5-620 MARK, CHANGE (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) MUFFLER COVER
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) OIL PAN
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 (24 parts) OIL PUMP
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)
11 18330-ZV5-020 PIPE, EX.
12 19252-ZV5-000 GROMMET, WATER TUBE
13 90105-881-000 BOLT, HEX. (6X12)
14 90126-ZV5-000 BOLT, HEX. (8X20)
15 90456-MC7-000 WASHER, THRUST (13MM)
16 90506-ZV4-000 WASHER, PLAIN (6MM)
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) PISTON
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) POWER TRIM-TILT
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) PROPELLER
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) PUMP IMPELLER KIT
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) REMOTE CONTROL CABLE
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) STARTER MOTOR
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) STERN BRACKET
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 (19 parts) SWIVEL CASE
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)
32 91256-ZV5-003 OIL SEAL (39.5X52X6) (ARAI)
34 94305-25203 PIN, SPRING (2.5X20)
TIMING BELT TENSIONER (14 parts) TIMING BELT TENSIONER
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) TOOLS
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

A well-maintained BF45 provides reliable, efficient power for many seasons. This 100-hour / annual checklist covers all the essentials and can be completed in a single afternoon with standard hand tools and parts from WoMarine.com.

  1. Change engine oil and replace the oil filter.
  2. Replace all three spark plugs and verify the gap.
  3. Drain and refill gear case oil; check for water or metal contamination.
  4. Replace the water pump impeller; inspect the housing, wear plate, and gaskets.
  5. Replace the fuel filter element; inspect all fuel hoses and connections.
  6. Inspect and replace sacrificial anodes (trim tab and lower unit).
  7. Test the thermostat for proper opening; replace if sticking or corroded.
  8. Inspect the propeller for damage; remove and grease the prop shaft splines.
  9. Lubricate all grease points, throttle and shift cables, and the steering system.
  10. Check the battery terminals and charging system voltage.

Pro Tips:

  • Flush the cooling passages with fresh water for at least five minutes after every saltwater or brackish-water outing. This is the simplest and most effective anti-corrosion measure you can perform.
  • Carry a spare set of spark plugs and a fuel filter element on board. These small, inexpensive items can save a trip if an issue develops while you are away from the dock.
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