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.
Aeroquip FCM3117 Quick-Drain Oil Pan Coupling Drain Plug Assembly
King Engine Bearings MB5518AM Main Bearing Set for AMC/Jeep 390 401 V8
Derale Performance 15728 Remote Oil Filter Mounting Kit 13/16"-16 Thread 1/2" NPT
Representative Photo, actual item may vary
Prothane 1-1905-BL Black Polyurethane Jeep Motor & Transmission Mount Kit
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.