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6l90e transmission

The 6L90E transmission is a heavy-duty 6-speed automatic transmission built for powerful GM trucks, SUVs, and commercial applications. Designed to handle demanding workloads, it delivers strong torque capacity, smooth gear changes, and dependable performance during towing, hauling, and everyday driving. Its wide gear ratio spread provides strong low-end acceleration, while the overdrive gears help reduce engine RPM and improve highway efficiency. Built for rear-wheel-drive and four-wheel-drive applications, the 6L90E transmission offers a reliable balance of durability, performance, and capability for vehicles that require a strong and dependable automatic transmission.

In Stock

Price range: $1,500.00 through $4,000.00

The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.

Additional Information

Brand

General Motors

Conditions

Remanufactured, Used

Miles

70000-130000

Year Compatibility

2007-2019

Verified

Tried & Tested

Warranty

Up to 3 Months

What we offer

Specifications

The 6L90E transmission is a heavy-duty 6-speed automatic overdrive transmission engineered for rear-wheel-drive and four-wheel-drive GM vehicles. Built to handle up to 531 lb-ft of input torque, the 6L90E transmission is designed for applications that require dependable performance under demanding towing and hauling conditions. Its wide gear ratio spread, including a 4.03:1 first gear and 0.67:1 sixth-gear overdrive, provides strong low-end pulling power while helping reduce engine RPM during highway driving.

Using DEXRON VI automatic transmission fluid and weighing approximately 240–245 lbs when equipped with a 300 mm torque converter, the 6L90E transmission is built for strength and durability. With a maximum GVWR of up to 15,000 lbs and a GCVW of up to 21,000 lbs, it is well suited for heavy-duty trucks and commercial applications. Whether used for towing, hauling, or regular driving, the 6L90E transmission delivers a balanced combination of power, smooth operation, and highway efficiency.


Transmission Variants

2WD (Two-Wheel Drive)

The 6L90E transmission in a 2WD configuration uses a slip-yoke style tail housing. This design does not use a rear case output seal and relies on internal transmission fluid flow to lubricate the tail bushing. It is designed for rear-wheel-drive applications where the driveshaft connects directly to the transmission.

4WD / AWD (Four-Wheel Drive)

The 6L90E transmission in a 4WD or AWD configuration is designed to connect to a transfer case through an adapter housing. It uses a specific rear output shaft seal to help prevent transmission fluid from entering and overfilling the transfer case. This configuration is commonly used in four-wheel-drive trucks and SUVs that require power to be delivered to both the front and rear wheels.


Frequently Asked Questions

  1. Is there a difference between a 6L90 and a 6L90E?

    No, the 6L90 and 6L90E generally refer to the same GM six-speed automatic transmission, with the β€œE” commonly used to indicate its electronically controlled design.

  2. What vehicles came with the 6L90E?

    The 6L90E was used in various GM heavy-duty trucks, vans, and SUVs, including certain Chevrolet Silverado and GMC Sierra HD models, Express and Savana vans, and other high-torque applications.

  3. How much HP can a 6L90E transmission handle?

    The stock 6L90E transmission is rated primarily by torque at approximately 531 lb-ft, while the horsepower it can support depends on engine torque, vehicle setup, and modifications.

  4. What are the common problems with a 6L90E transmission?

    Common 6L90E transmission problems include torque converter clutch failure, pressure regulator and pump wear, cracked pistons or drums, and worn or burned 4-5-6 clutch packs that can cause slipping and shifting issues.

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Price range: $1,500.00 through $4,000.00Select options