CHEVROLET 12523057 Rear Nos Transmission Mainshaft Bearing General

( Manufacturer Part Number: 12523057 ), ( Part Type: Bearing Transmission Motor )

Review CHEVROLET General Motors Nos Transmission Mainshaft Rear Bearing fits CAMARO CORVETTE 1997–2012

12523057 Nos. 1997-2012 Chevrolet Camaro Corvette Transmission Mainshaft Rear Bearing

The 12523057 transmission mainshaft rear bearing is an essential component in the powertrain system of your 1997-2012 Chevrolet Camaro or Corvette. This bearing is designed to support the mainshaft, which is a crucial part of the transmission that transfers engine power to the transmission gears.

This rear bearing is manufactured to meet or exceed the original equipment specifications of your vehicle. It is engineered using high-quality materials, such as steel and brass, ensuring durability and longevity. The bearing's design features a pre-lubricated, labyrinth seal, which helps prevent contaminants from entering the bearing and ensures efficient lubrication for smooth operation.

The 12523057 transmission mainshaft rear bearing is easy to install, making it a popular choice among DIY enthusiasts and professional mechanics. The replacement process involves removing the old bearing and installing the new one. However, it is essential to follow the correct installation procedures to ensure proper alignment and sealing, as improper installation could lead to premature failure.

When you choose to upgrade your vehicle with this transmission mainshaft rear bearing, you can expect improved performance, reduced noise, and increased reliability. This bearing is specifically engineered for use in high-performance applications, making it an excellent choice for those who demand the best from their vehicles.

In summary, the 12523057 transmission mainshaft rear bearing is an essential upgrade for your 1997-2012 Chevrolet Camaro or Corvette. It is designed to provide superior support for the mainshaft, ensuring efficient power transfer and smooth operation. With its high-quality materials, pre-lubricated labyrinth seal, and easy installation, this bearing is an excellent investment for any vehicle enthusiast.

Buying a new transmission mainshaft rear bearing for a 1997-2012 Chevrolet Camaro or Corvette can be a crucial decision for vehicle owners experiencing transmission issues. Here are some pros and cons to consider before making a purchase.

1. Improved Performance: A faulty transmission mainshaft rear bearing can cause vibrations, noise, and even transmission failure. Replacing it with a new one can help improve the overall performance of your vehicle by reducing these issues.

2. Long-Term Savings: While the upfront cost of a new transmission mainshaft rear bearing may seem high, it can save you money in the long run. A faulty bearing can cause further damage to other transmission components if not addressed, leading to more expensive repairs.

3. Peace of Mind: Replacing a faulty transmission mainshaft rear bearing can give you peace of mind knowing that your vehicle's transmission system is functioning properly and that you won't be stranded with unexpected transmission issues.

1. Cost: The cost of a new transmission mainshaft rear bearing can be relatively high, especially if you are not mechanically inclined and need to pay for labor costs.

2. Time: Replacing a transmission mainshaft rear bearing can be a time-consuming process, especially if you are not experienced in vehicle repairs.

3. Potential for Additional Repairs: In some cases, a faulty transmission mainshaft rear bearing may be a symptom of a larger transmission issue. Replacing the bearing may reveal other transmission problems that require additional repairs, adding to the overall cost.

In conclusion, replacing a faulty transmission mainshaft rear bearing in a 1997-2012 Chevrolet Camaro or Corvette can be a worthwhile investment for vehicle owners experiencing transmission issues. While the upfront cost may seem high, it can save you money in the long run by preventing further damage to other transmission components. However, it is important to consider the potential for additional repairs and the time and cost involved in the replacement process. Ultimately, the decision to replace the bearing should be based on the severity of the issue and your personal budget and priorities.

If you are experiencing transmission issues and suspect that the transmission mainshaft rear bearing may be the culprit, it is recommended that you consult with a qualified mechanic to diagnose the issue and determine the best course of action. They can provide you with an accurate diagnosis and an estimate of the cost and time involved in the repair process. Additionally, you may want to consider exploring options for used or rebuilt transmission mainshaft rear bearings as a more cost-effective alternative to a new one.

Details:

You can combine multiple wins to save on shipping when possible. Winning bidder to prepay bid and shipping. Here is an NOS 1997 2012 Chevrolet Camaro Corvette Transmission Mainshaft Rear Bearing #12523057. I have a partial list of the parts have, but inventory changes daily.

part #: 12523057 prices

• $59.00-$70.09

specifications othellodrivetrain:

• for models: Camaro, Corvette
• for makes: Chevrolet
• for years: 1997-2012
• mpn: 12523057
• part type: Bearing Transmission Motor

general othellodrivetrain:

• condition: Remanufactured
• Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain

returns othellodrivetrain:

• policy: No Returns

seller othellodrivetrain:

• # reviews: 11549
• rating: 99.8%
• city: Hillsboro, Oregon

payments othellodrivetrain:

• credit card: Mastercard
• wallet: Paypal
• other

offer othellodrivetrain:

• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: January 13, 2026
• sold: 0
• quantity: 1

shipping othellodrivetrain:

• class: Expedited, Standard
• carrier: USPS
• service: USPS Priority Mail, USPS Ground Advantage
• type: Calculated
• cost: $14.20
• transit: 3-8 Days

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