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1971 Honda CB500K Engine Gaskets, Oil Seals & Hardware

A gasket order for your 1971 CB500K should follow the joints being opened, not just the word overhaul. Compare top-end and overhaul sets with individual cover gaskets, then identify shaft seals and hardware that your chosen package does not explicitly include.

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Currently viewing Gaskets & Oil Seals & Engine Hardware

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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 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 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...
Honda CB750 CB550 CB650 cylinder head nut cover 91318-300-013

Honda CB750 / CB550 / CB650 Cylinder Head Nut Cover

$3.74 USD
01-0137
Restore the clean look of your cylinder head with this Rubber Cylinder Head Nut Cover, a replacement for OEM Ref. #91318-300-013. Fits all 1969-78...
Honda CB750 CB550 CB500 CB350 kickstart oil seal 18 x 29 x 7 91204-286-003

Honda CB750 / CB550 / CB500 / CB350 Kickstart Oil Seal ~ 18 x 29 x 7 ~ Replaces 91204-286-003

$4.95 USD
73-0962
Replace your kickstart oil seal with this Kickstart Oil Seal, 18 x 29 x 7, replacing OEM #91204-286-003. High-quality, made in Japan.Key Features• Kickstart...
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Honda CB550 CB500 CB400 CB350 engine primary drive rubber set 8 23114-323-000

Honda CB550 / CB500 / CB400 / CB350 Engine Primary Drive Rubber Set/8 ~ Replaces 23114-323-000

$32.95 USD
28-6922
Restore smooth power transfer inside the engine with this Engine Primary Drive Rubber Set (Set of 8), designed to replace worn or deteriorated original...
Honda CB750 CB650 cylinder sleeve o-ring gasket set 91304-286-000

Honda CB Cylinder Sleeve O-Ring Gasket Set ~ Replaces 91304-286-000

$4.50 USD
18-7068
Replace your cylinder sleeve O-rings with this Cylinder Sleeve O-Ring Set of 4, replacing OEM #91304-286-000.Key Features• Cylinder sleeve O-rings, 4 per set• Replaces...
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Honda CB550F CB550K CB500K alternator cover gasket 11691-323-306

1971-78 Honda CB550F / CB550K / CB500K Alternator Cover Gasket ~ Replaces 11691-323-306

$9.86 USD
18-6999
Replace your CB500K or CB550 alternator cover gasket with this Alternator Cover Gasket, replacing OEM #11691-323-306.Key Features• Alternator cover gasket• Replaces OEM #11691-323-306• Honda...
Honda CB750 CB650 CB550 CB500 crank seal 30 x 42 x 8 91201-300-003

Honda CB Crank Seal ~ 30 x 42 x 8 ~ Replaces 91201-300-003

$7.00 USD
73-0960
Replace your crank seal with this Crank Seal, 30 x 42 x 8, replacing OEM #91201-300-003. High-quality, made in Japan.Note: please reference the OEM...
Honda CB550F CB550K CB500K cylinder head gasket 12251-374-306

1971-78 Honda CB550F / CB550K / CB500K Cylinder Head Gasket ~ Replaces 12251-374-306

$69.95 USD
18-6996
Replace your CB500K or CB550 cylinder head gasket with this Cylinder Head Gasket, replacing OEM #12251-374-306.Key Features• Cylinder head gasket• Replaces OEM #12251-374-306• Honda...
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Honda CB500K engine oil seal kit with 9 seals

1971-73 Honda CB500K Engine Oil Seal Kit

$27.95 USD
01-9952
Seal up your CB500K engine rebuild with this 9-piece Engine Oil Seal Kit. A complete bundle matched specifically to the 1971-73 CB500K, saving you...
Honda CB550F CB550K CB500K cylinder head cover gasket 12391-323-000

1971-78 Honda CB550F / CB550K / CB500K Cylinder Head Cover Gasket ~ Replaces 12391-323-000

$41.95 USD
18-6997
Replace your CB500K or CB550 cylinder head cover gasket with this Cylinder Head Cover Gasket, replacing OEM #12391-323-000.Key Features• Cylinder head cover gasket• Replaces...
Honda CB650 CB550 CB500 cylinder base gasket 12191-426-306

Honda CB650 / CB550 / CB500 Cylinder Base Gasket ~ Replaces 12191-426-306

$18.50 USD
18-6993
Replace your CB650 or CB500/CB550 cylinder base gasket with this Cylinder Base Gasket, replacing OEM #12191-426-306.Key Features• Cylinder base gasket• Replaces OEM #12191-426-306• Honda...
Honda CB550F CB550K CB500K Athena gasket set (top end set only)

1971-78 Honda CB550F / CB550K / CB500K Athena Gasket Set (Top End Set Only)

$144.95 USD
18-0435
Freshen up the top end of your CB500 or CB550 with this Athena Top End Gasket Set. Athena of Italy is an original-equipment supplier...
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Honda CB500K overhaul gasket set

1971-73 Honda CB500K Overhaul Gasket Set

$129.95 USD
18-0438
Rebuild your CB500K engine with this Overhaul Engine Gasket Set.Key Features• Overhaul engine gasket setFitment / Compatibility• Honda CB500K (1971‑73)Part Number: 18-0438
Honda CB500K Athena overhaul gasket set

1971-73 Honda CB500K Athena Overhaul Gasket Set

$219.00 USD
18-0192
Rebuild your CB500K engine with this Athena Overhaul Engine Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda, Kawasaki, Suzuki, and...
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1971 Honda CB500K · Gaskets, seals & hardware Buying guide

Match gasket coverage to the opened joints

Top-end sets, overhaul sets and shaft-seal kits are separate choices in this category. A named repair location is more useful than a general promise of completeness when deciding which sealing parts to order.

Parts to consider

1971-78 Honda CB550F / CB550K / CB500K Athena Gasket Set (Top End Set Only) Athena top-end gasket setFor top-end work on the CB500K. The listing directs you to the product photo for contents; confirm any uncertain gasket before placing the order.View part 1971-73 Honda CB500K Athena Overhaul Gasket Set Athena overhaul gasket setAn overhaul gasket option listed for the 1971 CB500K. It is not described with a full contents list, so check coverage for your planned repair.View part 1971-73 Honda CB500K Engine Oil Seal Kit Nine-piece engine oil-seal kitThe description lists nine seals covering crankshaft, crankcase, gearshift, mainshaft, tachometer-drive and countershaft locations. Compare that list with your required seals.View part

Related parts: Cylinder head cover gasket

A gasket is not a shaft seal

A cover gasket follows a joint between housings; the separately listed seal kit names shaft and crankcase locations. Keep those requirements distinct on your order. A top-end gasket set should not be assumed to include the complete nine-piece oil-seal package.

Choose the precise cover gasket

The individual head-cover gasket is listed against 12391-323-000. The separate cylinder head and cylinder base gaskets seal different joints. Identify the repair location carefully before adding one to a larger set, especially when its contents may already overlap with the required gasket.

Questions about gaskets, seals & hardware

Which set is better for a top-end repair?

The Athena top-end set is the focused option to compare first. Match its shown contents to the joints being opened. The overhaul set has broader stated purpose, but its listing does not provide an itemized coverage guarantee.

What does the nine-piece oil-seal kit contain?

The listing names two crankshaft seals, left and right crankcase seals, gearshift drum and spindle seals, a mainshaft seal, a tachometer-drive seal and a countershaft seal. Check those locations against your repair rather than assuming unrelated seals are included.

Can I replace only the cylinder head cover gasket?

An individual cylinder head cover gasket is listed against reference 12391-323-000 for the CB500K. It is a separate option when that is the joint being serviced. It is not the cylinder head gasket or cylinder base gasket.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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