Your Trusted Source for Used Engines & Transmissions
For nearly two decades, Reliable Used Part has helped drivers across the USA find quality-tested, warranty-backed engines and transmissions — without the new-part price tag.
Built by Gearheads, Trusted by Thousands
Reliable Used Part was founded on a simple idea: every driver deserves access to high-quality auto parts without paying dealership prices for new ones. What started as a small salvage operation has grown into a nationwide supplier of tested, inspected, and warranty-backed used engines and transmissions.
Every part that leaves our warehouse passes through a multi-point inspection process — checked for mileage accuracy, compression, leaks, and overall mechanical health — before it's cleared for sale. We work directly with a network of verified salvage yards and dismantlers across the country, so we can offer engines and transmissions for nearly every make and model on the road today.
Our team of ASE-certified technicians and parts specialists is available by phone and email to help you find the exact fit for your vehicle, answer questions about compatibility, and walk you through installation if needed. We built this company to be the shop we'd want to buy from ourselves — honest pricing, real inspections, and support that doesn't disappear after checkout.
What Sets Us Apart
We built our process around the things buyers care about most when purchasing a used engine or transmission.
Rigorously Tested
Every engine and transmission passes a multi-point inspection before it ships — no guesswork, no surprises.
90-Day Warranty
Every part is backed by warranty coverage, so you can buy with confidence, not crossed fingers.
Nationwide Shipping
Fast, tracked delivery to all 50 states, with careful packaging to protect every part in transit.
Real Human Support
Talk to an actual parts specialist — not a chatbot — about fitment, compatibility, or installation questions.
Quality Parts. Honest Prices. Real Support.
Our Mission
To make high-quality used engines and transmissions accessible and affordable for every driver in America, backed by honest inspections and real warranty coverage.
Our Vision
To be the most trusted name in used auto parts nationwide — known for reliability, transparency, and standing behind every part we sell.
Our Promise
If a part isn't right for your vehicle, we'll make it right. No hidden fees, no surprise conditions — just straightforward service from start to finish.