Jeep CJ year 79-86
with 4,2 ltr. Engine
Jeep Wrangler YJ year 87-90
with 4,2 ltr. Engine
one Piston
with 0,030" Oversize
from Sealed Power
Replaces part no.: J8134441.30 , 8134441.30
Cast with FM413 Eutectic aluminum with 12% silicon for strength and durability
Performance/dependability of OE pistons - high quality aluminum casting & machining provide reliability,
durability & long life of par.
Exacting tolerances.
Up-tilt ring grooves improve piston to ring sealing & providing great blow-by control.