Jeep 3.8L & 4.2L Engine Parts

3.8L, 4.2L Camshaft & Bearings

3.8L, 4.2L Connecting Rod & Bearings

3.8L, 4.2L Crankshaft and Bearings

3.8L, 4.2L Gaskets & Seals

3.8L, 4.2L Engine Mounts

3.8L, 4.2L Engine Oiling

Pistons & Ring Sets

3.8L, 4.2L Valve Covers & Parts

Valve Train

Restore or rebuild your Full Size Jeep (FSJ) 3.8L or 4.2L engine with high-quality components from Dino's Full-Size Jeep. We carry replacement and rebuild parts for Grand Wagoneer, Wagoneer SJ, Cherokee Chief, J10, and J20 models equipped with AMC engines.

Shop Engine Components

⚙️ Pistons, Rings & Rods – High-quality pistons, rings, and connecting rods for complete engine rebuilds.
🔩 Gaskets & Seals – Complete gasket sets, valve cover gaskets, and crankshaft seals for leak-free operation.
🛠️ Valves, Springs & Lifters – Replacement valves, valve springs, lifters, and retainers for proper engine performance.
🚗 Timing Components – Timing chains, gears, and tensioners for reliable engine timing and operation.
💧 Oil Pumps & Accessories – Oil pumps, pick-up tubes, and hardware for proper lubrication and engine longevity.

Dino's Full-Size Jeep provides engine components engineered for fit, durability, and factory-spec performance to keep your vintage Jeep running strong.

For related drivetrain components, check out our Transmission, Cooling System, and Exhaust categories.