Exhaust System & Parts for Jeep CJ3A
Exhaust System & Components for Jeep CJ3A: Down & Tail Pipes, Manifold, Gaskets, Repair Kit & More.
Ensure optimal exhaust velocity and absolute post-war authenticity for your flatfender engine. We offer a highly specialized range of parts for the Jeep CJ3A exhaust tract – from factory-spec piping configurations to precision L-head manifold heat riser rebuild kits.- Exhaust Piping: Heavy-duty replacement downpipes, intermediate exhaust pipes, and tailpipes by Crown.
- Exhaust Flow & Thermostatics: Heavy-duty replacement L-head exhaust manifolds, heat riser bimetallic springs, and valve repair kits by Omix.
- Sealing Technology: High-temperature 3-piece L-head manifold gasket sets and downpipe packing seals by Crown Automotive.
1 to 8 (from a total of 8)
Wartime Legacy Exhaust Flow: Premium Exhaust Solutions for Your Jeep CJ3A.
The exhaust configuration of the 1949–1953 Jeep CJ3A civilian Jeep features a highly distinct vintage layout necessitated by the side-valve engine design. Because the intake and exhaust manifolds are stacked closely together on the Go-Devil L-head block, a mechanical heat riser valve is utilized to divert exhaust gases and pre-heat the fuel mixture during cold weather operation. Over decades of farm use, extreme thermal cycling, or high moisture, heavy casting manifolds inevitably crack, flanges warp, and the internal counterweight valve or thermostatic coil springs seize tight. This causes improper fuel vaporization and engine hesitation. Our specialized online inventory features highly precise replacement hardware to successfully rebuild your mechanical exhaust path back to strict standards.
Authentic Engineering for Historic Restorations: Omix & Crown Excellence.
To fully restore your engine's original thermal performance, explore our specialized update hardware: replace your pitted or cracked factory exhaust casting with a fresh, durable L-head exhaust manifold from Omix. We stock the exact manifold bimetallic thermostat spring alongside the comprehensive manifold heat riser valve repair kit from Omix to make your internal counterweight assembly rotate freely once again. For a clean, rattle-free assembly underneath your post-war frame crossmembers, we rely on the high-quality steel replacement exhaust downpipe, the matching intermediate pipe, and the factory-correct tailpipe from Crown Automotive.We guarantee an airtight, blowout-free barrier at high trail temperatures with professional-grade sealing components from Crown, including the factory-spec 3-piece L-head manifold gasket set and the vital high-temperature exhaust downpipe-to-manifold packing seal to stop hazardous leaks inside your engine bay permanently.