GM 8L90 transmission

GM 8L90 Transmission for Sale at Reliable Used Part

Need a GM 8L90 Transmission for a repair, replacement, or rebuild? Reliable Used Part lists options for Corvette, Camaro, Silverado and Sierra models for model years 2015–2022, giving you a practical way to source a used transmission without paying new-part prices. Explore our full used transmission inventory or ask our team to confirm the details for your vehicle.

Current options at Reliable Used Part for this transmission are listed in the $750–$4,500 range. The final price depends on the specific unit and the option you select, so contact our team to confirm availability, condition, included components, and delivery details before placing your order. Ask us about current GM 8L90 Transmission stock if you do not see the exact option you need.

What Is the GM 8L90 Transmission?

The GM 8L90 Transmission is GM’s 8-speed automatic for performance cars and trucks such as the Corvette, Camaro, Silverado and Sierra.

Before you buy, make sure it matches your vehicle’s exact configuration, not just its model name. If you want a refresher on how this component works, read the Wikipedia overview of the automatic transmission.

GM 8L90 Transmission Compatibility and Fitment

The GM 8L90 Transmission listing is intended for Corvette, Camaro, Silverado and Sierra models for model years 2015–2022. Exact compatibility depends on the model year, trim, engine, and drivetrain, so verify fitment before ordering. A properly matched GM 8L90 Transmission helps your vehicle run smoothly after installation.

• Models: Corvette, Camaro, Silverado and Sierra
• Model years: 2015–2022
• Engine and transmission options: 8L90 and 8-speed automatic

How to Confirm Fitment Before You Buy

A few minutes of checking can save you a return. Before you order, confirm the following:

• Identify the transmission code on the pan or tag, or ask us to match it from your VIN.
• Confirm the drivetrain (2WD, 4WD, AWD, or front-wheel drive) and the engine size.
• Check the gear count and whether your vehicle needs a specific torque converter or bellhousing pattern.
• Plan for related items you may want to replace at the same time, such as the filter, cooler lines, and fluid.
• Ask our team to confirm availability, condition, and included parts before you order.

You can decode your VIN with the NHTSA VIN decoder and check for open safety recalls on the NHTSA recalls page before you start a major repair.

Signs You May Need a Replacement Transmission

These common symptoms may mean it is time to look at a replacement transmission:

• Slipping gears, delayed engagement, or a flare between shifts
• Harsh or erratic shifting, including getting stuck in one gear
• A burning smell, or dark, gritty transmission fluid
• Fluid leaks under the vehicle, or a low fluid level that keeps recurring
• Warning lights or limp mode triggered by transmission faults

These symptoms can point to worn clutches, valve body faults, or torque converter problems, but sensors and fluid issues can cause them as well, so have a qualified technician diagnose the vehicle first.

Why Buy a Used Transmission from Reliable Used Part?

Reliable Used Part helps drivers and shops across the United States source used transmissions at practical prices. Our team can review your VIN, confirm GM 8L90 Transmission fitment, and explain warranty terms before you order. Nationwide USA shipping is available, so contact Reliable Used Part for a quote and delivery estimate. Compare every GM 8L90 Transmission option carefully before you decide.

Working on more than one component? You may also want to look at our LT1 Engine, GM NV3500 Transmission and 4L65E Transmission, or browse the full used transmission inventory.

GM 8L90 Transmission FAQs