1973 Honda CB750K Engine Parts

Narrow by Subcategory

Currently viewing Engine

Honda motorcycle parts

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

Sort by

Sold out

1969-77 Honda CB750A / CB750F / CB750K High Performance Kibblewhite Black Diamond Intake Valve

$59.95 USD

Upgrade your valvetrain with this High-Performance Kibblewhite Black Diamond Intake Valve. Made in the USA by Kibblewhite, who have been making high-quality performance parts...

New

Sold out

1969-78 Honda CB750 Kibblewhite Performance Cylinder Head Nuts Pk/4

$44.95 USD

Upgrade your cylinder head fasteners with this Kibblewhite Performance Cylinder Head Nut 4-pack. High-strength premium steel with tight tolerances, heat-treated to a specific depth...

Honda CB750 2ND oversize piston kit +0.50mm 13103-300-030

1969-76 Honda CB750 Piston Kit ~ 2nd Oversize +0.50mm

$69.95 USD

Go with a 0.50mm oversize on your early CB750K using this 2nd Oversize Piston Kit (+0.50mm). Japanese made to superior quality, replacing OEM Ref....

1969-78 Honda CB750 Oil Tube Plug ~ Replaces 15337-300-010

$10.95 USD

Replace your oil tube plug with this Oil Tube Plug, replacing OEM #15337-300-010.Key Features• Oil tube plug• Replaces OEM #15337-300-010Fitment / Compatibility• Honda CB750K...

New

1969-78 Honda CB750 Joker Machine Oil Tank Mounting Bushing Set/3

$79.95 USD

Clean up your exposed stock oil tank with this Joker Machine Oil Tank Mounting Bushing Set of 3. Designed for builds running no oil...

compare

1973 Honda CB750K · Engine Buying guide

Build an engine order around the repair

Separate routine filter service from work inside the engine. Gasket sets, oil-seal kits, pistons and rings cover different parts of a repair, and the two-chain primary-drive set is not a rear-wheel drive-chain purchase.

Parts to consider

Honda CB Oil Filter ~ Replaces 15410-426-010

Stock-type oil filterPaper filter element replacing 15410-426-010. O-rings, the spring and washers are available separately.View part

1969-78 Honda CB750 SOHC Overhaul Gasket Set

Overhaul gasket setListed for the SOHC CB750. Includes engine gaskets and valve stem seals; engine oil seals and head nut covers are excluded.View part

1969-76 Honda CB750 Piston Ring Set ~ Standard Size

Standard piston ringsStandard-size ring set replacing 13011-300-024. Each set contains rings for one piston.View part

Related parts: Engine oil seal kit · Cam chain guide

Choose the scope before the set

The overhaul set includes valve stem seals and its named engine gaskets, but excludes engine oil seals and cylinder-head nut covers. Check those exclusions once against the repair plan, then avoid duplicating individual gaskets already supplied in the set.

Count the cylinders being repaired

The separately offered standard piston kit includes one piston, its pin and a pair of clips; rings are ordered separately. The standard ring package covers one piston. Confirm the measured repair size before multiplying either package by the number of cylinders being rebuilt.

Common questions

Does the overhaul gasket set include oil seals?

No. Engine oil seals and cylinder-head nut covers are explicitly excluded. The set does include eight valve stem seals, so check those contents before ordering extra sealing parts.

Is one standard ring set enough for the whole engine?

Each standard ring set supplies rings for one piston, and the application specifies four sets for all four pistons. Match the rings to the measured piston and cylinder size before deciding the order quantity.

Is the two-chain primary set a rear drive-chain kit?

No. The genuine-Honda primary chain set contains two chains for the engine’s primary drive, references 23131-300-315 / 23131-300-015. It is a different purchase from the chain driving the rear wheel.

Not sure which part you need?

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

Ask a fitment question

Parts categories for 1973 Honda CB750K

Help & information

Select your bike