Why Choose United Prime Auto Parts?
Buying a used engine or transmission is a big decision. Here’s how we take the risk out of it.
Nationwide Shipping
Fast, reliable delivery to all 50 states from our network of U.S. warehouses.
Quality Tested Parts
Every engine and transmission is inspected and function-tested before it leaves our yard.
VIN Compatibility Assistance
Give us your VIN and we’ll confirm exact fitment before you buy — no guesswork.
Competitive Pricing
Used OEM parts at a fraction of the cost of new, without cutting corners on quality.
Warranty Available
Extended warranty coverage available on engines and transmissions for real peace of mind.
Dedicated Customer Support
Talk to a real parts specialist who knows engines — not a script.
Secure Payments
Checkout with confidence through encrypted, PCI-compliant payment processing.
Ready to Find Your Part?
Tell us your VIN or vehicle details and a parts specialist will confirm fitment, pricing, and shipping time today.