Used Mopar 6.4L HEMI V8 for Sale — VIN-Verified.

The 6.4L (392) HEMI comes in two very different forms — the heavy-duty truck version in Ram 2500/3500 and the high-output car version in Scat Pack and SRT models — so VIN verification is mandatory since heads, intake, oil system and MDS deactivation differ. Known items include MDS lifter wear and 'HEMI tick,' which we check with a bore-scope and compression and leak-down testing before any unit ships from Pasadena. Ultra Auto Parts TX is Houston's drivetrain specialist, supplying quality used and remanufactured gas engines out of our Pasadena, TX facility at 5041 Spencer Hwy, Ste 101. Every engine we sell is sourced, inspected, and VIN-verified against your specific vehicle before it ships — no random salvage guesswork. As a used-engine dealer serving the greater Houston area, we test compression, run leak-down and bore-scope checks, and confirm mileage so you know exactly what you're buying. Whether you drive a Chevy Silverado, Ford F-150, Toyota Camry, Honda Accord, or a Nissan, Dodge, GMC, or Jeep, our bilingual English/Spanish team helps you find the right long block or complete drop-in engine. Send us your VIN and we'll match the correct engine family, displacement, and options so it bolts in right the first time.

Why buy a quality used engines?

A quality used engine is the smart middle ground between an expensive brand-new crate engine and a risky unknown. You get genuine OEM components engineered for your exact platform — correct block, heads, and sensor locations — at a fraction of new-engine cost. Low-mileage salvage engines pulled from wrecked-but-running vehicles often have plenty of service life left, and because they're OEM, fitment and reliability beat generic aftermarket overhauls.

Common signs you need a replacement

Most drivers come to us after a blown head gasket, a spun rod bearing (rod knock), cracked block from overheating, a thrown timing chain, or oil-starvation damage. High-mileage engines burning oil or losing compression are common triggers too. When the repair bill approaches the engine's value, a VIN-matched used replacement is usually the faster, more affordable path back on the road.