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Honda CB Engine Gaskets, Oil Seals & Hardware

Find Honda CB engine gaskets, oil seals and hardware for maintenance, leak repairs and engine rebuilding. Shop cover gaskets, gasket sets, O-rings, oil seals, washers, plugs, fasteners and related sealing components. Select your Honda CB model above to narrow the collection to products listed for your bike.

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Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Gaskets & Oil Seals & Engine Hardware

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB750 shifter cover gasket 11395-300-303

1969-78 Honda CB750 Shifter Cover Gasket ~ Replaces 11395-300-303

$10.95 USD
18-7006
Replace your SOHC CB750 shifter cover gasket with this Shifter Cover Gasket, replacing OEM #11395-300-303 / #11395-300-306.Key Features• Shifter cover gasket• Replaces OEM #11395-300-303...
Honda CB750 alternator cover gasket (dyno cover) 11397-300-306

1969-78 Honda CB750 Alternator Cover Gasket (Dyno Cover) ~ Replaces 11397-300-306

$14.95 USD
12-5038
Replace the SOHC CB750 alternator (dyno) cover gasket with this Alternator Cover Gasket (Dyno Cover), replacing OEM #11397-300-306. Fits all 1969-1978 CB750 models.Key Features•...
Honda CB750 CB550 CB500 CB400 CB350 point plate gasket 30372-300-300

Honda CB Point Plate Gasket ~ Replaces 30372-300-300

$7.50 USD
18-7010
Replace your Contact Point Plate Cover Gasket with this Point Plate Gasket, replacing OEM #30372-300-300. Broad fitment across the SOHC CB750, CB500K/CB550 family, and...
Honda CB750 SOHC oil pump rebuild kit

1969-78 Honda CB750 SOHC Oil Pump Rebuild Kit

$49.95 USD
73-1053
Restore your oil pump's flow with this 11-Piece Oil Pump Rebuild Kit. Get your oil pump flowing at maximum capacity for a healthy engine...
Honda CB750 clutch cover gasket 11396-300-303

1969-78 Honda CB750 Clutch Cover Gasket ~ Replaces 11396-300-303

$13.95 USD
12-5037
Rebuild your SOHC CB750's clutch cover with this Clutch Cover Gasket, replacing OEM #11396-300-303 / #11396-399-396 / #11396-399-060. Fits all 1969-78 CB750 models.Key Features•...
Honda CB1100 CB1000 CB900 CB750 alternator cover gasket 11691-425-000

Honda CB1100 / CB1000 / CB900 / CB750 Alternator Cover Gasket ~ Replaces 11691-425-000

$12.64 USD
12-5008
Replace the alternator cover gasket on your DOHC CB with this Alternator Cover Gasket, replacing OEM #11691-425-000. Fits the 1979-82 CB750 family, CB750SC Nighthawk,...
Honda CB750 CB400 CB350 shift shaft seal 14 x 28 x 7 91206-286-013

Honda CB Shift Shaft Seal ~ 14 x 28 x 7 ~ Replaces 91206-286-013

$4.61 USD
73-0959
Replace your shift shaft seal with this Shift Shaft Seal, 14 x 28 x 7, replacing OEM #91206-286-013. High-quality, made in Japan.Key Features• Shift...
Honda CB750 engine oil seal kit made in japan with 8 seals 91205-300-005

1969-78 Honda CB750 Engine Oil Seal Kit

$44.95 USD
01-9018
Rebuild your '69-'78 CB750 with this 8-piece Engine Oil Seal Kit, built to superior OEM quality and made in Japan. Covers the 1969-76 CB750K...
Honda CB1100 CB1000 CB900 CB750 valve cover gasket 12391-425-010

Honda CB1100 / CB1000 / CB900 / CB750 Valve Cover Gasket ~ Replaces 12391-425-010

$32.95 USD
12-1002
Replace your DOHC CB's valve cover gasket with this Valve Cover Gasket, replacing OEM #12391-425-010. Fits the 1979-82 CB750 family, CB750SC Nighthawk, CB900 family,...
Honda CB750 cam valve cover gasket 12391-300-306

1969-78 Honda CB750 Cam / Valve Cover Gasket ~ Replaces 12391-300-306

$22.95 USD
18-7003
Replace your SOHC CB750's cam/valve cover gasket with this Cam / Valve Cover Gasket, replacing OEM #12391-300-306.Key Features• Cam / valve cover gasket• Replaces...
Honda CB750 SOHC engine bolt set

1969-78 Honda CB750 SOHC Engine Bolt Set

$59.95 USD
73-0146
Restore your CB750 engine fasteners with this Engine Bolt Set, 60 pieces. Includes 13 different bolt types and 2 allen keys.Key Features• Engine bolt...
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Honda CB1100 CB1000 CB900 CB750 left crankcase cover gasket 11395-425-306

Honda CB1100 / CB1000 / CB900 / CB750 Left Crankcase Cover Gasket ~ Replaces 11395-425-306

$14.95 USD
18-7055
Replace your DOHC CB's left crankcase (generator) cover gasket with this Generator Cover Gasket, replacing OEM #11395-425-306.Key Features• Left crankcase / generator cover gasket•...
Honda CB1100 CB1000 CB900 CB750 oil pan gasket 11398-425-306

Honda CB1100 / CB1000 / CB900 / CB750 Oil Pan Gasket ~ Replaces 11398-425-306

$15.94 USD
18-7053
Replace your DOHC CB's oil pan gasket with this Oil Pan Gasket, replacing OEM #11398-425-306. Broad fitment across the CB750A Hondamatic, full 1979-82 CB750...
Honda CB750 cam chain tensioner gasket 14592-300-396

1969-78 Honda CB750 Cam Chain Tensioner Gasket ~ Replaces 14592-300-396

$3.50 USD
18-7009
Replace your SOHC CB750 cam chain tensioner gasket with this Cam Chain Tensioner Gasket, replacing OEM #14592-300-396.Key Features• Cam chain tensioner gasket• Replaces OEM...
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Honda CB1100 CB1000 CB900 exhaust headpipe gasket (each) 18291-MM5-860

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-MM5-860

$6.84 USD
18-7013
Replace one cylinder-head-to-exhaust-headpipe gasket on your big-bore Honda with this Cylinder Head to Exhaust Headpipe Gasket, 1 piece, replacing OEM #18291-MM5-860. Exceptionally broad fitment...
Honda CB1100 CB1000 CB900 CB750 clutch cover gasket 11396-425-306

Honda CB1100 / CB1000 / CB900 / CB750 Clutch Cover Gasket ~ Replaces 11396-425-306

$22.95 USD
12-5042
Rebuild your DOHC CB's clutch cover with this Clutch Cover Gasket, replacing OEM #11396-425-306. Fits the 1979-82 CB750 family, CB750SC Nighthawk, CB900 family, CB1000C,...
Honda CB750 CB550 CB500 CB350 tach drive oil seal 4.8 x 14.5 x 4 91256-096-651

Honda CB750 / CB550 / CB500 / CB350 Tach Drive Oil Seal ~ 4.8 x 14.5 x 4 ~ Replaces 91256-096-651

$4.95 USD
73-0963
Replace your tach drive oil seal with this Tach Drive Oil Seal, 4.8 x 14.5 x 4, replacing OEM #91256-096-651. High-quality, made in Japan.Key...
Honda CB750 SOHC overhaul gasket set

1969-78 Honda CB750 SOHC Overhaul Gasket Set

$144.95 USD
18-0441
Rebuild your SOHC CB750 engine with this Overhaul Engine Gasket Set, fitting all CB750K, F, and P (Police) models from 1969-78. Set contains: 18-7001...
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Honda CB750 oil pan gasket (late) 11398-300-306

1969-78 Honda CB750 Oil Pan Gasket (Late) ~ Replaces 11398-300-306

$13.95 USD
18-7004
Replace your late-type SOHC CB750 oil pan gasket with this Oil Pan Gasket (Late Type), replacing OEM #11398-300-306.Key Features• Oil pan gasket, late type•...
Honda CB1100 CB1000 shift shaft oil seal 12.5 x 25 x 8 91204-425-003

Honda CB Shift Shaft Oil Seal ~ 12.5 x 25 x 8 ~ Replaces 91204-425-003

$4.61 USD
73-0968
Replace your shift shaft oil seal with this Shift Shaft Oil Seal, 12.5 x 25 x 8, replacing OEM #91204-425-003. High-quality, made in Japan.Key...
Honda CB1100 CB1000 CB900 CB750 spark advancer cover gasket 30372-425-000

Honda CB1100 / CB1000 / CB900 / CB750 Spark Advancer Cover Gasket ~ Replaces 30372-425-000

$7.95 USD
18-7059
Replace your DOHC CB's spark advancer cover gasket with this Spark Advancer Cover Gasket (rubber O-ring), replacing OEM #30372-425-000.Key Features• Spark advancer cover gasket...
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Honda CB750 SOHC Athena engine gasket set

1969-78 Honda CB750 SOHC Athena Engine Gasket Set

$179.95 USD
18-0110
Rebuild your SOHC CB750 engine with this Athena Overhaul Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda, Kawasaki, Suzuki, and...
Honda CB1100 CB1000 tach drive oil seal 4.8 x 14.5 x 5 91256-425-003

Honda CB Tach Drive Oil Seal ~ 4.8 x 14.5 x 5 ~ Replaces 91256-425-003

$4.95 USD
73-0964
Replace your tach drive oil seal with this Tach Drive Oil Seal, 4.8 x 14.5 x 5, replacing OEM #91256-425-003. High-quality, made in Japan.Key...
Honda CB750 CB550 valve tappet cover gasket (set 8) 91302-001-020

Honda CB Valve Tappet Cover O-Ring (Set/8) ~ Replaces 91302-001-020

$15.95 USD
18-7069
Replace your valve tappet cover O-rings with this Valve Tappet Cover O-Ring Set of 8, replacing OEM #91302-001-020. Designed for stock-type valve tappet covers...
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Honda CB Gaskets and Seals for Reliable Engine Repairs

Engine gaskets, O-rings and oil seals keep oil inside the engine while preventing dirt and moisture from entering critical areas. Heat, age, repeated disassembly and hardened sealing materials can lead to leaks around engine covers, shafts, oil passages and mating surfaces. Replacing the correct seal or gasket during service helps produce a cleaner, more dependable repair.

This collection includes Honda CB engine-cover gaskets, complete and partial gasket sets, shaft seals, valve-related seals, O-rings, sealing washers, plugs, fasteners and other engine hardware. When completing more extensive work, browse our piston and ring sets and Honda CB valvetrain parts for related internal engine components.

For timing-system service, see our camshaft drive parts. Replacement covers and related exterior components are available in engine covers and accessories. Honda changed gasket shapes, shaft diameters, bolt patterns and sealing arrangements between models and production years, so use the My Motorcycle selector to narrow the results before choosing components for your repair.

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