GMC TRUCK SIERRA250 Shifter Transmission 242.GM9N12

( Brand: Gmc Truck ), ( Manufacturer Part Number: SIERRA250 ), ( Part Type: Transmission ), ( Conditions Options: Blk, Wt ), ( Genuine Oem: Yes ), ( Ipn: 242.gm9n12 ), ( Manufacturer Warranty: 90 Day )

Review GMC TRUCK Shifter Transmission Shift fits 2012

The GMC Sierra 2500 model from the year 2012 is equipped with a robust Allison 242.GM9N12 6-speed automatic transmission. This transmission is a key component of the vehicle's powertrain system, responsible for seamlessly transferring power from the engine to the wheels.

The Allison 242.GM9N12 transmission is a heavy-duty unit, designed to handle the demanding requirements of commercial and heavy-duty applications. It features a torque converter lock-up clutch that engages at low engine speeds, reducing power loss and improving fuel efficiency during steady-state driving.

This transmission is also equipped with a range of advanced features to ensure smooth and reliable shifting. It utilizes a proprietary electronic control system that monitors engine and vehicle parameters in real-time, and adjusts shift points accordingly to optimize performance and fuel economy.

The Allison 242.GM9N12 transmission is built with durability in mind, using high-strength materials and advanced manufacturing processes to ensure long-lasting reliability. It is also designed to be easily serviced, with easily accessible filters and replaceable wear components.

In terms of compatibility, this transmission is specifically designed for use in GMC Sierra 2500 models from the 2012 model year. It is important to note that using a transmission from a different model year or vehicle make may result in compatibility issues and potential damage to the vehicle.

In summary, the Allison 242.GM9N12 6-speed automatic transmission is a heavy-duty, advanced unit designed for use in the GMC Sierra 2500 model from the 2012 model year. It delivers robust performance, smooth shifting, and long-lasting reliability, making it an essential component of this vehicle's powertrain system.

The GMC Sierra 2500 with a 2012 model year and a 6L90-E 6-speed automatic transmission, specifically the part number 242.GM9.N12, is a popular choice for those seeking reliable and heavy-duty towing capabilities. Below are some potential pros and cons of buying this transmission for your GMC Sierra 2500:

1. Durability: This transmission is known for its robust construction and high towing capacity. It can handle heavy loads and is commonly used in commercial applications.

2. Smooth Shifting: The 6L90-E transmission offers smooth and consistent shifts, making for a comfortable driving experience.

3. Reliability: This transmission has a reputation for being reliable and long-lasting, with many owners reporting over 200,000 miles on their original units.

4. Adaptability: The transmission is compatible with various engine options, including the 6.0L V8 and 6.6L Duramax diesel engines.

1. Complexity: The 6L90-E transmission is a complex piece of machinery, with numerous sensors and electronic controls. This can make diagnosing and repairing issues more challenging and expensive.

2. Cost: The price point for a used 2012 GMC Sierra 2500 transmission in good condition can be relatively high, especially when compared to other transmission options in the market.

3. Potential issues: Some owners have reported issues with the transmission, such as shifting delays, hard shifts, and slipping gears. However, these issues are not common, and many are addressed through updates and recalls.

The GMC Sierra 2500 2012 transmission, specifically the 6L90-E 6-speed automatic transmission, offers a number of advantages, including durability, smooth shifting, reliability, and adaptability. However, it also comes with some potential downsides, such as complexity, cost, and potential issues. Ultimately, the decision to buy this transmission depends on your specific needs, budget, and willingness to deal with the potential challenges.

If you require a heavy-duty transmission with a proven track record of reliability and towing capacity, and you have the budget for it, the 2012 GMC Sierra 2500 6L90-E transmission could be an excellent choice. If you're concerned about complexity and cost, you may want to consider other transmission options, such as a rebuilt or remanufactured unit. Regardless of your decision, be sure to do your research and ensure that you're purchasing from a reputable source to minimize the risk of potential issues.

Details:

Residential delivery is not included in the free shipping.

part #: sierra250 prices

• $55.00-$195.20

specifications geashif:

• for makes: Gmc
• for years: 2012
• brand: Gmc Truck
• mpn: Sierra250
• part type: Transmission
• conditions options: Blk, Wt
• genuine oem: Yes
• ipn: 242.gm9n12
• manufacturer warranty: 90 Day

offer geashif:

• availability: In Stock
• started: March 20, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

general geashif:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Shifters, Cables Linkages

returns geashif:

• policy: Returns Accepted
• paid by: Buyer
• time: 60 Days

shipping geashif:

• type: Fixed
• service: Standard
• class: Standard
• cost: $0.00
• transit: 4-8 Days

payments geashif:

• credit card: Discover
• other
• wallet: Paypal

seller geashif:

• # reviews: 10127
• rating: 98.8%
• city: La Vergne, Tennessee

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