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Used alternative
How do we have used parts if we're reman? We have warehouses across the country, so we're always getting cores — that's how we have used parts. Sometimes a used part is sellable and in good condition, so we sell those too. Check the mileage on each listing.
we have no used parts for this available
Remanufactured Transmission T4L80E5799T4
$2,275.00 USD
Best mix of reliability, warranty, and value — our highest-confidence pick.
Why this one: 36-mo warranty · In stock
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SKU: RTRT4L80E5799T4
Delivers in 15–26 business days · arrives by Fri, Dec 11
One left in stock — order soon
Complete fitment verification to check warranty eligibility.
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Remanufactured transmissions provide a reliable and cost-effective alternative to new or used units, making them an excellent choice for mechanics who prioritize quality, performance, and efficiency. But what exactly goes into the remanufacturing process, and why is it a smart investment for professionals in the automotive industry?
The Remanufacturing Process
Every transmission core is carefully inspected for wear, damage, or defects. It is then completely disassembled, with each component thoroughly cleaned and assessed for reusability.
Any components that do not meet OEM (Original Equipment Manufacturer) standards are replaced with new or re-engineered parts. This includes bearings, seals, gaskets, clutches, and other critical components.
Key components like valve bodies, torque converters, and gears are resurfaced or machined to restore their original specifications, ensuring optimal performance.
Many remanufactured transmissions incorporate design improvements that address common failure points, resulting in a more durable and efficient unit than the original factory version.
The transmission is carefully reassembled by expert technicians and subjected to rigorous dyno testing to simulate real-world driving conditions. This ensures smooth shifting, proper fluid pressure, and overall reliability.
INCLUDED WARRANTY PROGRAM
More Than Benefits.
Warranty coverage is included at $0 when fitment is verified— not sold as a separate protection plan.
Terms follow value tier and part category. File claims through your account after delivery.
Parts + Labor
Included on remanufactured
Unlimited Miles
On remanufactured units
All our products are backed by a warranty that exceeds industry standards. *See warranty details on our website.
Peak Powertrain is your go-to destination for drivetrain replacements. We specialize in remanufactured engines and transmissions, offering high-quality parts for American, Japanese, and other vehicles. Committed to excellence, we provide reliable performance with warranty-backed fitment.
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