Complete KU replacement pump assembly with single-groove flywheel. Usually for constant spinning applications. The Jenny KU pump has head unloaders but can be used for both start/stop and constant run applications. Made in the USA.  Note: If your...

Air compressor pump with flywheel and air filter assembly. This pump has head unloaders and is typically used for gas-powered constant-run applications. Single-groove, 10.375" diameter flywheel. Please note:  This new-style KU pump is for serial...

Old Part Numbers: KU861/4" compression x 1/8" male NPT air compressor compression elbow. Note: For COPPER tubing. If you are using nylon or plastic tubing, consider using our T1059.

Old Part Numbers: KU82 Replaceable o-ring for KU181 unloaders.

Old Part Numbers: K119Breather Valve Assy. (crankcase). Includes items K16, K17 & K18.

Old Part Numbers: K36AWrist Pin Retainer (Bumper).

Old Part Numbers: L50Head for K pump (without unloaders).

Old Part Numbers: K35Wrist Pin (Piston Pin) for conrod.