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About
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United Auto Parts : Quality You Can Trust

Founded in 2022, United Auto Parts delivers on a straightforward promise: premium, tested used engines and transmissions at honest prices, backed by outstanding service.we infuse every part of our business with the discipline, honesty, and precision honed in military service.From our base in Sheridan, Wyoming, we've expanded from a local shop to a go-to supplier for customers nationwide across all 50 states.

  • A/C compressor
  • Alternator
  • Console Front
  • Radiator
  • Engine
  • Exhaust Assembly
  • Transmission
  • Wheel
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About Our Company

Why Choose Us?

Save 60-80% on premium OEM parts! ASE-inspected, 30-day warranty, fast 2-5 day US shipping. Perfect fit guaranteed—thousands of happy drivers coast-to-coast. Quality reuse, unbeatable value!

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50+ State Delivery

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Fast Delivery

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90 Days Warranty

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10M+ Vehicle Parts

OUR WORK PROCESS

How We Works

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01

Search and Select

Browse our vast inventory by entering your vehicle's make, model, year, and part needs. Filter by condition, price, and US warehouse location for the best matches.

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02

Verify Compatibility

Check listings with high-res photos, OEM numbers, condition grades, and VIN fitment tools. Unsure? Use live chat with our ASE-certified experts for free advice.

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03

Purchase Securely

Add to cart and checkout safely with credit cards, PayPal, or Apple Pay. We ship from multiple US hubs with real-time UPS/FedEx tracking.

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04

Receive and Inspect

Parts arrive in 2-5 business days. Enjoy our 30-day money-back guarantee—test it, and return if needed for easy refunds or exchanges.

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CAREER COUNSELLING

Asked Question

We thoroughly inspect every part before listing it, checking for wear, damage, and functionality. Parts receive a condition rating (e.g., excellent, good, fair) based on standardized criteria, and we provide photos, mileage estimates where applicable, and a 30-day warranty on most items to give you peace of mind.

Yes, we cross-reference parts using OEM numbers, make, model, year, and engine details. Enter your vehicle's info during search, or contact us for verification. Compatibility isn't guaranteed 100% due to modifications, so we recommend double-checking with your mechanic.

Returns are accepted within 30 days if the part is defective or doesn't fit (unopened and in original condition). Shipping costs are non-refundable unless it's our error. Provide photos and order details for a quick refund or exchange—processed within 2-3 business days.

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10000000+

Car Parts Available

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70000+

Satisfy Customers

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2600+

Expert Members

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20000000+

Parts Deliver

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