Allison 1000 Rebuilt Transmission

The Allison 1000 transmission was introduced in 2000 by Allison Transmission as the first fully automatic transmission for medium-duty and heavy-duty trucks. This transmission was designed to handle the high torque produced by Duramax diesel engines in Chevrolet and GMC heavy-duty trucks, such as the Silverado and Sierra 2500HD and 3500HD models.

With its innovative design, the Allison 1000 became known for its rugged durability, smooth shifting, and advanced electronic controls. The original version featured 5 forward gears and a torque-handling capacity of up to 545 lb-ft, making it ideal for towing and hauling applications. Common issues such as valve body wear and overheating have been addressed in Certified Transmission’s remanufactured units, ensuring these transmissions deliver dependable performance for years to come.

Why Choose Certified Transmission for Your Allison 1000?

Certified Transmission is one of the largest suppliers of remanufactured transmissions in the United States, offering high-quality remanufactured Allison 1000 transmissions for heavy-duty applications. Our motto, "The Job Done Right At The Right Price," reflects our commitment to providing exceptional value and reliability.

Whether your Allison 1000 transmission powers a heavy-duty truck for commercial hauling, recreational towing, or daily use, Certified Transmission offers expert craftsmanship you can trust. With a nationwide network of service centers, we ensure a seamless experience for purchasing and installing your remanufactured transmission.

Remanufactured vs. Rebuilt Allison 1000 Transmissions

Choosing a remanufactured Allison 1000 transmission from Certified Transmission ensures superior reliability and performance compared to rebuilt options. Rebuilt transmissions replace only the faulty components, whereas remanufactured units are completely disassembled, inspected, and rebuilt with upgraded or new parts to meet or exceed OEM specifications.

Certified Transmission’s remanufacturing process addresses factory design flaws, incorporates enhanced components, and includes rigorous testing under real-world conditions. This ensures your remanufactured Allison 1000 transmission provides long-term durability and dependable performance.

Nationwide Warranty Protection

Every remanufactured Allison 1000 transmission from Certified Transmission is backed by an industry-leading nationwide warranty. Whether you’re towing a heavy load or traveling cross-country, you can trust that your transmission is protected, giving you peace of mind with every mile.