Honda motorcycle parts
Choose your model and year to see parts listed for your bike.
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1972 Honda CB350K4 · Engine Parts Buying guide
The CB350K4 twin has an internal cam chain and a separate rear drive chain. Its centrifugal oil-filter hardware also needs different parts from the fuel system, so identify the assembly before choosing a kit.
Standard-size piston kitOne piston with rings, pin and clips. Two kits cover both cylinders when standard-size pistons are appropriate.View part
Athena engine gasket setOverhaul gasket set with an explicit CB350K 1970–72 application. Compare the required sealing locations before assembly.View part
Joker Machine magnetic drain plugBillet-aluminum plug with O-ring, M33.7 × 1.5 thread and 19 mm socket fitting. Allow 19 mm clearance below the case.View part
Related parts: Shift shaft seal · Genuine Honda cam-chain roller · Centrifugal filter cover kit
The standard-size piston package contains one piston, rings, pin and clips. Two packages cover both cylinders only if standard-size parts suit the bores. Have bore condition assessed before committing to the order; the model tag cannot reveal an earlier rebore.
The magnetic drain plug comes with an O-ring and needs clearance below the case. The linked centrifugal cover kit is a different assembly, with a cover, internal oil-guide pieces and a 63.5 × 2 mm O-ring. Neither choice replaces inspection and cleaning of the filter system.
No. The supplied piston, rings, pin and clips cover one piston. Order two kits only after confirming that both cylinders can use the standard-size package.
Do not assume that from its name. The Athena product is an overhaul gasket set; the shift shaft seal is a separate linked item. Compare the sealing locations needed for your repair.
The cam chain drives the valve timing mechanism inside the engine. Rear drive-chain adjusters belong at the rear wheel. Honda documents the primary drive as gears, so these are distinct assemblies.
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