4F27E / FNR5 / FN4A-EL

The piston is what converts line pressure into clamping force, so a leaking one makes every other repair pointless.4F27E Piston interm od servo. The set covers the apply positions a...

A cracked or hardened piston seal bleeds off apply pressure and the clutch it feeds slips under load.4F27E 4F27E PISTON KIT. This piston set restores a positive seal so the...

A cracked or hardened piston seal bleeds off apply pressure and the clutch it feeds slips under load.4F27E 4F27E FN4A-EL PISTON KIT STK. This piston set restores a positive seal...

A cracked or hardened piston seal bleeds off apply pressure and the clutch it feeds slips under load.4F27E 4F27E FNR5 PISTON KIT STK. This piston set restores a positive seal...

Lip seals take a set in the groove and stop wiping the bore the way they did when new.4F27E forward clutch piston. This set returns the apply circuit to full...