JF015E.PIS11

Product Information
The JF015E CVT transmission has a press fit piston incorporated within the primary pulley sheave. This piston is can become loose or separated from the pulley itself. The center of the piston uses an interference fit to the pulley that forms a hydraulic seal for the belt clamping pressure. If the piston loses the interference fit on the pulley, there will be a loss of belt clamping pressure. This results in the pulleys being no longer able to clamp the belt with the required force which causes the slipping or surging complaints.
Features and benefits:
The TransGo CNC machined billet steel upper primary piston is much less prone to deformation and wear then the soft OE piston. Also, to help prevent the piston from coming loose again on the pulley, the inside diameter of the piston is smaller than the original design, resulting in greater interference fit. This is a quick and easy fix to eliminate pulley pressure loss as well as belt slip complaints without the need for any special tools. This billet piston MUST BE PRESS-FIT, or it will leak. A 2-1/4” socket works well for pressing this new piston down onto the primary pulley.
Corrects/Prevents/Reduces:
Pressure loss at the pulley
Low pressure codes
Slipping belt
Damaged belt
Damaged sheaves
Metal contamination because of the piston spinning on the pulley
Includes:
Precision USA-made CNC billet steel piston