Jeep J20 Engine Block Parts
This page brings together engine block parts for the Jeep J20, covering model years 1974–1988. The range spans piston ring sets, crankshaft main bearing sets, connecting rod bearings, engine mounts, and oil drain plugs — the core internal and external components that make up a complete engine block assembly. Select your year above and we'll show only the engine block parts that fit your Jeep J20. Fitment is checked against our vehicle data for every part listed.
MAHLE 51550CP.030 Engine Piston Ring Set Oversize Cast Iron - 0.030
MAHLE 40533CP.060 Plasma-Moly Engine Piston Ring Set +.060 Overbore
Representative Photo, actual item may vary
MAHLE 41555CP.020 Original Engine Piston Ring Set Oversize - 0.020
Representative Photo, actual item may vary
MAHLE 51284CP.040 Premium Engine Piston Ring Set - 0.040" Oversize Bore
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Representative Photo, actual item may vary
MAHLE 50203CP.040 Standard Piston Ring Set Big Block 4.290" Bore +.040 Over
MAHLE 51284CP.030 Perfect Circle Premium Piston Ring Set .030 Over
MAHLE 41097CP.020 Original Premium Engine Piston Ring Set Oversize - 0.020
MAHLE 50134CP.040 Original Standard Engine Piston Ring Set Oversize - 0.040
Representative Photo, actual item may vary
MAHLE 51510CP.020 Premium Piston Ring Set 0.020 in. Oversize
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Representative Photo, actual item may vary
MAHLE 51497CP.060 Standard Piston Ring Set Bore Oversize - 4.060 0.060
MAHLE 40533CP.020 Premium Engine Piston Ring Set Over - 0.020
Representative Photo, actual item may vary
King Engine Bearings CR648SI010 Connecting Rod Bearing Set Silicon Aluminum
What's here for your Jeep J20
- Engine Piston Ring Sets
- Individual Engine Piston Rings
- Engine Connecting Rod Bearing Sets
- Engine Crankshaft Main Bearing Sets
- Engine Oil Drain Plugs
- Engine Mounts
The widest selection here comes from MAHLE, Dorman, Hastings, and Sealed Power, covering OE-replacement and performance-oriented options in materials and configurations suited to the Jeep J20's 1974–1988 production run. Other categories Jeep J20 owners shop for: Jeep J20 Exterior Lights, Jeep J20 Steering Gear and Parts and Jeep J20 Springs and Suspension Parts, or browse all Jeep J20 parts and accessories.