The AI Marketplace connects buyers and vendors on a single intelligent platform. Buyers enter their VIN for automatic vehicle decoding, receive real-time quotes from verified sellers, and track their orders through one central dashboard. Vendors sign in to list inventory, receive pre-qualified buyer leads, and manage quotes from confirmation through delivery – all in one place.

Used Auto Parts Pro is a national used auto parts marketplace that connects car owners and repair shops with genuine OEM-grade parts from a verified network of salvage yards operating across all 50 states. The platform gives buyers access to over 300 million parts for every major make and model – from Ford and Toyota to BMW, Tesla, and Jeep.

Used Auto Parts Pro’s independent sellers prioritize genuine OEM parts, and most listings are OEM components sourced from salvage or end-of-life vehicles. Some listings may include aftermarket parts as well, which sellers disclose so buyers can choose based on their needs and budget.
UAPP does not list parts directly, so we can’t guarantee the OEM status or condition of any individual part. Sellers work to source used OEM parts in good condition and provide condition notes, photos, and part details in their listings. We recommend reviewing this information and confirming part origin and condition with the seller before ordering.
VIN-based matching provides strong fitment confidence but does not guarantee fit in every case. Prior modifications, trim differences, production changes, drivetrain configuration, and installer requirements can affect compatibility.

Used OEM parts typically run 40% to 70% less than their new equivalents. A used engine lands between $200 and $1,500 depending on the make and mileage, compared to $3,000 to $8,000 for a new unit. A used transmission runs $300 to $2,000 versus $2,500 to $6,000 new. 

Used Auto Parts Pro carries engines, transmissions, alternators, radiators, ECMs, bumpers, headlights, axles, AC compressors, starters, catalytic converters, side mirrors, and body panels for all major makes and models. If your vehicle was manufactured between 1950 and 2025, the part you need is almost certainly in stock somewhere in our network. 

You can submit a part request without creating an account using our quick request form on the website, or create a free account to access the full marketplace experience. Marketplace users can manage requests, compare quotes, track order progress, and communicate with verified independent sellers from a single dashboard.

Your request is sent to our network of verified independent sellers, who respond with quotes based on their current inventory.

For the strongest fitment match, include your full 17-digit VIN when submitting your request. VIN-based matching provides strong fitment confidence but does not guarantee fit in every case. Prior modifications, trim differences, production changes, drivetrain configuration, and installer requirements can all affect compatibility.

Once you receive quotes, you can compare pricing, condition notes, and seller-specific warranty terms before choosing a seller to complete your purchase directly.

Yes. Used Auto Parts Pro ships to every US state. Most standard parts leave the seller within 24 to 48 hours of order confirmation. Engines and transmissions typically ship within 1 to 3 business days via freight carrier. Delivery to your location generally takes 1 to 5 business days.

Every part is matched to your vehicle using your VIN. The 17-digit VIN identifies your precise year, make, model, trim level, and engine code – which removes the most common causes of fitment errors. Enter your VIN in the quote form and the compatibility check runs before you ever place an order.

Return eligibility depends on the seller’s terms and the specific part. Many sellers accept returns when a part doesn’t match its listed description or fails to fit as confirmed by VIN matching, and many offer warranty coverage as well, but terms, duration, and exclusions vary by seller and part. Confirm the seller’s specific return and warranty policy in writing before ordering.
To start a return, contact the seller directly using the information provided in your order confirmation. If you need help identifying the right contact or navigating the process, reach out to us and we can assist.

Used OEM parts cost 40% to 70% less than new OEM parts and deliver the same performance when sourced from low-mileage salvage vehicles. They are the exact factory-manufactured components your vehicle was engineered around. Buying used also diverts functional parts from landfill and supports more sustainable repair practices. 

Lifespan depends on the part type and the mileage it had when it was removed. A used engine pulled at 60,000 to 80,000 miles typically has 80,000 to 150,000 additional miles in it with proper maintenance. Used transmissions from low-mileage donors commonly deliver another 50,000 to 100,000 miles. Many engines, transmissions, and major components include mileage information from the donor vehicle. Availability of mileage documentation varies by seller and vehicle. 

Yes, Used Auto Parts Pro has an AI chatbot. Upon registering, you receive a one-time complimentary usage of up to 4,000 characters—enough for multiple questions. For continued use, subscribing to a plan unlocks ongoing access.