New Components: Includes a full range of factory-fresh parts including balanced pistons, balanced rods, valves, valve guides & lifters, rings, wrist pins and bushings, main connecting rod and camshaft bushings, timing chain, oil pump, brass freeze plugs, as well as a premium gasket set and all oil seals.
Precision Tested: All engines checked for compression, oil pressure, oil leaks, engine noise and general operating condition before shipping.
Carefully Prepared: All blocks are magna-fluxed to prevent metal defects and machined for three-angle valve seats, then bored, precision honed and mains are line-honed to compensate for diameter variations.
Attention To Detail: Camshaft bearings are line-bored for accurate center-to-center clearance and all crankshafts are stress-relieved, precision ground and micro polished.Learn More
Replacing that well-used engine in your 2007-11 Wrangler JK can be quite an expensive proposition. Not with ATK, though, and its Replacement 3.8L V6 Engine. This isn't just any re-manufactured powerplant either, because ATK uses only the highest quality parts and machined tolerances to ensure its products perform at the highest level. ATK tests every engine for compression, oil pressure, oil leaks, engine noise and general operating condition before shipment, and it also uses many premium new parts including balanced pistons, balanced rods, valves, valve guides & lifters, rings, wrist pins and bushings. Includes a three-year, unlimited mileage warranty.
Specs
Fitment
Jeep Wrangler 2-Door (JK)
Jeep Wrangler Unlimited 4-Door (JK)
New Components: Includes a full range of factory-fresh parts including balanced pistons, balanced rods, valves, valve guides & lifters, rings, wrist pins and bushings, main connecting rod and camshaft bushings, timing chain, oil pump, brass freeze plugs, as well as a premium gasket set and all oil seals.
Precision Tested: All engines checked for compression, oil pressure, oil leaks, engine noise and general operating condition before shipping.
Carefully Prepared: All blocks are magna-fluxed to prevent metal defects and machined for three-angle valve seats, then bored, precision honed and mains are line-honed to compensate for diameter variations.
Attention To Detail: Camshaft bearings are line-bored for accurate center-to-center clearance and all crankshafts are stress-relieved, precision ground and micro polished.