Get Quality Used Engine
and Transmission in"A" Grade Condition
Every part inspected, tested, and backed by a 1-year warranty. Secure your purchase with a 10% OFF on your first order!
Mon – Sun · 6 AM – 9 PM PST
Instant Quote
Get your engine/transmission price in 10 minutes
Or call us: (866) 486-5915
Shop by Category
All inventory in-house — ships from our warehouse directly to you
Used Engines
OEM-grade engines, tested & certified. All major makes & models available.
Used Transmissions
Auto & manual transmissions with full inspection reports included.
Commercial Vehicles
Heavy-duty parts for trucks, vans & fleet vehicles. Volume pricing available.
SUVs & Sedans
Passenger vehicle parts for domestic & import cars. Ships same day.
See Our Collection
Featured Products
How It Works
Getting the right part is simple — we handle the rest
01
Browse Parts
Search our inventory by make, model, or part type.
02
Request Availability
Call or message us to confirm the part is ready to ship.
03
Confirm Order
Secure checkout with warranty documentation provided.
04
Fast Delivery
Parts shipped nationwide, typically 2–5 business days.
Popular Parts In Stock
Tested, warehoused, and ready to ship today
Why Choose The Auto King USA?
Every part is inspected and tested before shipping — that's our commitment to quality, not just a claim.
Inspected & Tested
Every part passes a 50-point quality check before shipping.
Same-Day Shipping
Orders placed before 3 PM PST ship the same business day.
1-Year Warranty
All engines and transmissions come with our full warranty.
Expert Support
Speak with a trained auto specialist — not a call center.
Free Shipping $500+
No surprise fees. Free ground shipping on qualifying orders.
Fast Nationwide
Delivery to all 50 states in 2–5 business days on average.
Our Promise
Built on Quality.
Backed by Warranty.
1-Year Warranty
Full coverage on all engines and transmissions — no fine print.
Tested & Verified
50+ inspection points run on every part before it leaves our facility.
Dedicated Support
A real specialist handles your order start to finish, 7 days a week.
Years in Business
20+
Parts Sold & Delivered
10,000+
Customer Satisfaction
98%
States We Ship To
50
What Customers Say
Real orders. Real results. Read by real people.
Got my Toyota Camry engine in 3 days. Runs perfectly — better than I expected for a used part. Will definitely order again.
Marcus T.
Dallas, TX
The team helped me find the exact transmission for my Silverado. Great communication, fair price, and it came with a warranty.
Sandra R.
Phoenix, AZ
Ordered an ABS pump — arrived well-packaged and exactly as described. Saved me $800 vs the dealership. Highly recommended.
James L.
Chicago, IL
Ready to Get Your Part?
Call now and get 10% OFF your first order. Speak with a specialist in under 60 seconds.
Mon – Sun · 6 AM – 9 PM PST · No hold music, no bots