America's Trusted OEM Used Auto Parts

Save up to 70% compared to dealer prices on factory-original powertrain and body assemblies, with 100% VIN-verified fitment and fast freight delivery.

FIND YOUR PART

Find Grade A OEM Used Auto Parts

Engine

CALL NOW

Transmission

Transfercase

CALL NOW

Quality-tested used engines with dependable performance.

Smooth-shifting used transmissions you can trust.

Fully tested transfer cases for dependable performance.

About Relay Parts & Supply

At Relay Parts & Supply, we're committed to making quality OEM used auto parts affordable and accessible across the United States. Based in Midland, Texas, we source professionally inspected engines, transmissions, drivetrain components, body parts, and more through our trusted network of licensed automotive recyclers.

Our mission is simple: provide genuine factory-original parts, competitive pricing, fast nationwide shipping, and exceptional customer service. Whether you're a vehicle owner, repair shop, dealership, or fleet operator, we're here to help you find the right part quickly and confidently.

Quality Parts. Honest Service. Nationwide Delivery.