Skip to product information
Low 7:1 compression ratio.
Perfect for a stock rebuild with improved reliability of low compression.
Piston includes the wristpin and wristpin clips.
Note: Piston rings must be purchased separately.
Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation.
It is of importance that a knowledgeable mechanic will install & make adjustments as required.
The rider must follow standard break-in and riding procedures for overhauled engines.
OEM 21990-80A
Fits: > L78-84 1340cc Shovel (NU)
Replacement 7:1CR 1340CC Shovel Cast Piston. +.020" For Harley Davidson
42.76 €
Perfect for a stock rebuild with improved reliability of low compression.
Piston includes the wristpin and wristpin clips.
Note: Piston rings must be purchased separately.
Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation.
It is of importance that a knowledgeable mechanic will install & make adjustments as required.
The rider must follow standard break-in and riding procedures for overhauled engines.
OEM 21990-80A
Fits: > L78-84 1340cc Shovel (NU)