OEM 6L80 6SP AUTOMATIC TRANSMISSION

If you’re in the market for a robust, high-performance automatic transmission that blends cutting-edge engineering with proven reliability, look no further than the OEM 6L80 6-Speed Automatic Transmission. Designed and built by General Motors (GM), the 6L80 is one of the most respected transmissions in the automotive industry, known for its seamless shifting, fuel efficiency, and long-lasting durability. Whether you’re replacing a worn-out unit or upgrading your drivetrain, this OEM 6L80 6-Speed Automatic Transmission is the perfect solution.

Overview of the OEM 6L80 6-Speed Automatic Transmission

The OEM 6L80 6-Speed Automatic Transmission introduced by General Motors in 2006. It’s part of the Hydra-Matic family and is designed to handle high-torque applications in rear-wheel-drive (RWD) and all-wheel-drive (AWD) platforms. Built with modern electronic controls and durable internals, the OEM 6L80 6-Speed Automatic Transmission offers an excellent balance between performance and efficiency.

Originally found in a wide range of GM vehicles, including the Chevrolet Silverado, Camaro, Tahoe, GMC Sierra, Yukon, and even some Cadillac models, this transmission has proven itself in both light-duty and heavy-duty applications.

Key Specifications

• Manufacturer: General Motors (OEM)

• Model: 6L80 (MYC)

• Transmission Type: OEM 6L80 6-Speed Automatic Transmission

• Gear Ratios:

  • 1st: 4.03

  • 2nd: 2.36

  • 3rd: 1.53

  • 4th: 1.15

  • 5th: 0.85

  • 6th: 0.67

  • Reverse: 3.06

• Torque Capacity: Up to 660 lb-ft

• Applications: Full-size trucks, SUVs, muscle cars

• Weight (Dry): Approx. 195 lbs (88.5 kg)

• Fluid Type: Dexron VI ATF

OEM Quality and Assurance

This is a genuine OEM 6L80 6-Speed Automatic Transmission, meaning it’s manufactured to the original specifications and quality standards set by General Motors. It is not a rebuilt or aftermarket unit — it is either a brand-new or factory-remanufactured 6L80 built with 100% OEM components. OEM parts ensure direct fitment, optimized performance, and compatibility with your vehicle’s ECU and systems.

We ensure that each transmission undergoes rigorous inspection, dyno testing, and quality control checks to meet or exceed OEM standards before it is made available for sale. That means no guesswork — just plug and play performance.

Applications and Compatibility

The OEM 6L80 6-Speed Automatic Transmission has been factory-installed in many GM vehicles from 2006 onward. Common applications include:

• Chevrolet Silverado 1500 & 2500

• Chevrolet Suburban / Tahoe

• Chevrolet Camaro SS

• GMC Sierra / Yukon / Denali

• Cadillac Escalade / CTS-V / STS

• Hummer H2 (later models)

• Pontiac G8 GT

• Holden Commodore (international models)

If you’re unsure about compatibility with your specific make, model, and year, feel free to contact us with your VIN or transmission code — our team will help you verify fitment.

Advanced Engineering Features

The OEM 6L80 6-Speed Automatic Transmission is not just tough; it’s smart too. Key features include:

• Clutch-to-clutch shifting: Enhances shift precision, reduces wear, and offers a smoother driving experience.

• Integrated TCM (Transmission Control Module): Unlike older designs with separate control modules, the 6L80’s TCM is housed inside the transmission case. This allows for faster communication and more accurate shift logic.

• Adaptive learning technology: Learns driving patterns to optimize shift timing and improve fuel efficiency.

• Wide gear ratio spread: Delivers strong first-gear acceleration while maintaining low RPM at cruising speeds.

Why Buy a 6L80?

Whether you’re restoring a classic vehicle, building a custom project car, or replacing a failing transmission in your daily driver, the OEM 6L80 6-Speed Automatic Transmission offers a wide range of advantages:

1. Proven Durability – Built for high-mileage performance and heavy-duty usage.

2. Performance-Friendly – Excellent for high-horsepower vehicles and towing applications.

3. Aftermarket Support – The 6L80 is popular among tuners, racers, and off-road enthusiasts.

4. Fuel Efficiency – Low overdrive gears allow for better fuel economy on highways.

5. Availability of Parts – With millions of units produced, parts are widely available and affordable.

6. Versatility – Works well with both gas and diesel engines, in RWD and AWD platforms.

Condition and Warranty

This OEM 6L80 6-Speed Automatic Transmission is available in the following conditions:

• Brand New (Factory Sealed)

• Remanufactured (Factory Rebuilt with New OEM Components)

Each unit comes with a comprehensive warranty (typically 12 to 36 months depending on seller). We stand behind the quality of our transmissions and offer hassle-free support in case of any issues.

Installation Notes

Professional installation is strongly recommended to ensure proper operation. It is important to:

• Use the correct torque converter and mounting hardware

• Reprogram or relearn the TCM

• Replace the transmission cooler or flush the existing one

• Use Dexron VI transmission fluid (or as specified by your vehicle manufacturer)

• Check for proper alignment and driveline geometry

Our team can provide installation guidelines and recommendations for trusted shops in your area if needed.

Shipping and Availability

We offer nationwide shipping across the U.S. and Canada. All transmissions are packaged securely to prevent damage during transit. Local pickup may be available depending on warehouse location.

Expedited shipping and core return assistance are available upon request.

Pricing and Core Exchange

Prices vary depending on condition (new or remanufactured), but OEM 6L80 6-Speed Automatic Transmission generally range from $2,000 to $3,500 USD, depending on mileage, year, and included accessories (such as torque converters). A refundable core charge may apply if you’re exchanging your old unit.