Certified Used Transmissions
Dependable Used Transmissions – Delivered Fast
Explore our inventory of quality pre-owned transmissions, backed by expert guidance and competitive pricing.
We know how critical a reliable transmission is to your vehicle’s performance. That’s why every unit we offer is carefully sourced, inspected, and tested to ensure smooth operation and long-term dependability. Whether you need an automatic or manual transmission, we provide options tailored to your vehicle and budget.
Our team focuses on delivering not just parts, but complete reliability. Every transmission is inspected, tested, and checked for performance, durability, and compatibility—so you can install it with confidence and minimal hassle.
Find Your Part
Quality Used OEM Transmissions for All Makes & Models
At TrueFit Auto Parts, we provide quality used OEM transmissions for a wide range of cars, trucks, SUVs, and other vehicles. Whether you’re experiencing slipping gears, shifting problems, or transmission failure, our thoroughly inspected and tested units can help you find a dependable replacement at a competitive price.
⚙️ Transmission Features
OEM Automatic & Manual Transmissions – Quality replacement units for a variety of makes and models.
Low-Mileage Units Available – Source options based on mileage, condition, and availability.
Tested & Inspected – Transmissions are evaluated to help ensure reliable operation and performance.
Fitment Assistance – Our team can help verify compatibility using your vehicle information or VIN.
Quality-Sourced Inventory – We work with trusted salvage yards and automotive suppliers.
Warranty Options – Warranty coverage is available on select transmissions; terms vary by part.
Competitive Pricing – A cost-effective alternative to purchasing a new transmission.
Fast & Secure Nationwide Shipping – Convenient delivery across the United States.
Prepared for Shipment – Units are cleaned and prepared to help simplify the installation process.
Avoid unnecessarily high replacement costs and make finding the right transmission easier. Our knowledgeable team is here to help with fitment, availability, pricing, and shipping so you can get the replacement transmission you need with confidence.
Quality Auto Parts & Solutions
High-Performance Engines
"Top-quality engine components from trusted suppliers, engineered for peak performance and dependable reliability for your vehicle."
Dependable Transmission Parts
"Reliable transmission components from trusted suppliers, engineered for smooth shifting and consistent, peak performance."
Durable Suspension Parts
"High-quality suspension components from trusted suppliers, engineered to deliver stability, comfort, and reliable handling for your vehicle."
Electrical Components You Can Trust
"High-quality electrical components from trusted suppliers, designed to ensure safe, efficient, and reliable operation of your vehicle’s electrical system."
Quality Body Components for Your Vehicle
"Expertly selected body components designed to preserve your vehicle’s style, strength, and reliability."
Premium Interior Solutions
"Premium interior components from trusted suppliers, engineered to provide comfort, functionality, and long-lasting durability for your vehicle."
"I ordered a low-mileage transmission for my Ford F-150, and the entire process was smooth from start to finish. The part arrived on time, matched the description perfectly, and installed without any issues. Great communication and excellent service."
"I was looking for a reliable replacement engine for my Honda Accord and found exactly what I needed at Key Stone OEM Parts. The engine was clean, well-packaged, and has been running flawlessly. I'll definitely purchase from them again."
"The OEM headlight I received looked almost brand new and fit my Toyota Camry perfectly. The price was much better than buying new, and shipping was faster than expected. Very satisfied with my purchase."
"I ordered a replacement side mirror for my Silverado, and it arrived in excellent condition. It matched my vehicle perfectly and was easy to install. The customer support team answered all my questions promptly."
"I purchased a set of OEM wheels for my Jeep Grand Cherokee, and they exceeded my expectations. They were in great condition, balanced perfectly, and arrived securely packaged. Highly recommend Key Stone OEM Parts."
"I needed suspension components for my Nissan Altima, and Key Stone OEM Parts had exactly what I was looking for. The parts fit perfectly, the pricing was fair, and delivery was quick. Great experience overall."
"Finding the correct alternator for my BMW wasn't easy until I contacted Key Stone OEM Parts. Their team helped me verify compatibility, and the part worked perfectly. Outstanding customer service."
"The rear bumper I ordered for my Ford Explorer arrived in better condition than I expected. It fit perfectly, and I saved hundreds compared to buying a new OEM bumper. Very happy with my purchase."
"I ordered a replacement tail light for my Dodge Ram, and it arrived quickly and was exactly as described. Installation took just a few minutes, and it looks great. Excellent value for the money."
"I was hesitant about buying a used transmission online, but Key Stone OEM Parts made the process easy. The transmission arrived well-packaged, installed without problems, and has been performing flawlessly. I wouldn't hesitate to buy from them again."
"I needed a replacement starter motor for my Toyota RAV4 and was impressed with how easy the ordering process was. The part arrived quickly, was well-packaged, and worked perfectly right out of the box. Great prices and excellent customer service."
"After searching everywhere for the correct OEM engine control module for my Chevrolet Malibu, I found it at Key Stone OEM Parts. Their team confirmed the compatibility before shipping, and the module worked exactly as expected. Fast delivery, quality parts, and a company I can trust."
Why Customers Trust TrueFit Auto Parts
Quality-Tested OEM & Used Auto Parts
Every part is thoroughly inspected to ensure reliable performance, proper fitment, and long-lasting durability before it reaches you.
- From essential replacement parts to specialized OEM components, Key Stone OEM Parts offers a wide selection of quality-tested used and remanufactured auto parts for all major makes and models. Every part is carefully inspected to ensure reliable performance, proper fitment, and long-lasting value.
- Our experienced team is dedicated to helping you locate the right OEM auto parts by providing expert guidance, fitment verification, and reliable support throughout your purchase.
- Browse, select, and order parts online with ease, backed by fast shipping and reliable service.
- We’re dedicated to providing exceptional service, with knowledgeable experts assisting you from selection to delivery.
- We provide fair and competitive pricing on all our parts, so you get high-quality components without overpaying.
- We provide transparent updates and reliable communication so you always know when your parts will arrive.
- Whether you need an engine, transmission, brakes, suspension components, body panels, electrical parts, or interior accessories, we offer quality-tested OEM replacement parts you can rely on for every repair, restoration, or upgrade.
Find Your Perfect Replacement Part?
Contact TrueFit Auto Parts for help finding quality-tested used and remanufactured OEM auto parts. From engines and transmissions to body, suspension, and electronic parts, we offer competitive prices, fast nationwide shipping, and dependable support to help you find the right fit.
Trusted by customers nationwide for quality-tested used and remanufactured OEM auto parts, competitive prices, and fast nationwide shipping.