Honda motorcycle parts
Choose your model and year to see parts listed for your bike.
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1975 Honda CB750K · Engine Buying guide
The overhaul gasket set and engine oil-seal kit are separate purchases. For routine filter service, identify the housing first; a stock-type paper element and a spin-on conversion use different replacement parts.
Stock-Type Oil FilterPaper filter element replacing Honda references 15410-426-010 and 15410-422-004. Housing O-rings, spring and washer are available separately.View part
SOHC Overhaul Gasket SetIncludes eight valve stem seals, four sleeve-base O-rings and eight stud packings, plus the listed engine gaskets. Engine oil seals and head nut covers are excluded.View part
Engine Oil Seal KitEight-piece replacement seal kit with alternative countershaft seals. Its 25 × 62 × 8 option is assigned to 1971–76 CB750K applications.View part
Related parts: Cam and valve cover gasket · Cam chain guide · Intake valve
The cam-cover gasket is available separately, reference 12391-300-306. That can be a narrower purchase than an overhaul set when only that joint is being opened. For a larger job, compare every opened assembly with the set’s itemized contents.
A replacement engine can change the relevant application even if the frame is a 1975 CB750K. Record the engine identity and compare it with the selected gasket, cam-drive or valve listing before reusing a parts list from another motorcycle.
The featured overhaul set already contains eight valve stem seals. Engine oil seals and cylinder head nut covers are specifically excluded; those are the separate additions to check against the repair.
It is the stock-type paper element, paired with separately available housing O-rings, spring and washer. The chrome spin-on product replaces the housing, bolt and element, so identify which arrangement is fitted before ordering service parts.
It covers more than one application. The contents assign 25 × 62 × 8 to 1971–76 CB750K models and 29.8 × 62 × 7 to 1977–78 models. Use the option matching the actual engine; eight supplied seals does not mean both alternatives belong in it.
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