Best Automatic Input Shaft Bearings of 2026
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Automatic input shaft bearings are an essential component in the transmission system of a vehicle. These bearings provide support to the input shaft, which transfers power from the engine to the transmission. They are designed to withstand high loads and reduce friction, thus ensuring smooth and efficient operation of the transmission. Automatic input shaft bearings are made from high-quality materials and are engineered to meet the exact specifications of the vehicle manufacturer. They are easy to install and require minimal maintenance, making them a reliable and cost-effective solution for ensuring the optimal performance of a vehicle's transmission system.
At a Glance: Our Top Picks
Top 10 Automatic Input Shaft Bearings
GM Genuine Parts 12641260 Camshaft Cover
The GM Camshaft Cover is specially designed and tested to fit GM vehicles perfectly, ensuring you get a reliable and precise replacement part. This cover is engineered to match the exact specifications of your vehicle, making installation straightforward and hassle-free. When it’s time to install the cover, you can easily find help at your nearest GM dealer, independent service center, or body shop. This support ensures that the part is installed correctly, giving you peace of mind and helping your vehicle run smoothly.
GM Genuine Parts Rear Driver Side Half-Shaft 85540672
The GM Rear Driver Half-Shaft helps deliver power from your vehicle's transmission or differential directly to the wheels, ensuring smooth and efficient movement. This part is designed by GM engineers to meet strict standards, giving you confidence in its quality and fit for your Chevrolet, Buick, GMC, or Cadillac. It may have been known before as ACDelco GM Original Equipment, so you’re getting trusted, tested components. GM constantly updates their parts with new materials and technologies, so when you choose this half-shaft, you’re getting a product built to keep your vehicle running reliably and efficiently.
GM Genuine Parts Automatic Transmission Input Sun Gear Thrust Bearing
GM Genuine Parts 9436851 Automatic Transmission Input Sun Gear Thrust Bearing is made in the United States and has a compact package size with a height, length, and width of 0.3 inches, 3.4 inches, and 3.4 inches, respectively. This bearing is designed to fit specific vehicles and falls under the category of Automatic Input Shaft Bearings.
GM Genuine Parts Camshaft Cover 12614738
The GM Camshaft Cover is specifically designed and tested for GM vehicles, ensuring you get a part that matches your car's original specifications. This means you can trust the product to fit perfectly, making installation straightforward and hassle-free. If you're unsure about installing it yourself, you have the option to visit a nearby GM dealer, an independent service shop, or a body shop for professional help. This cover not only meets GM's quality standards but also offers peace of mind knowing it's backed by a warranty, so you can rely on its durability and performance.
GM 22922224 Fluid Level Sensor
This is a genuine General Motors fluid level sensor that is designed to fit your specific vehicle. The part number is 22922224, and it is manufactured to meet specifications for fit, form, and function. This sensor belongs to the Automatic Input Shaft Bearings category.
GM Genuine Parts 12667117 Camshaft Cover
The GM Camshaft Cover is crafted specifically for GM vehicles, ensuring it fits perfectly and functions as intended. This part has been carefully designed, tested, and backed by a warranty, giving you confidence in its quality and durability. When it's time to install the cover, you can easily find professional help at your nearest GM dealer, independent service center, or body shop, making the process smoother and less stressful. With a precise fit, you save time and effort during installation, reducing the chance of errors and potential engine issues.
BBB WT297-6 Input Bearing Retainer for GM M20 M21 M22
The BBB Input Bearing Retainer is designed specifically for GM 4-speed transmissions like the M20, M21, and M22 models. This genuine part ensures a perfect fit by directly replacing original part numbers 304735 and 70818, so you won’t have to worry about compatibility issues. Its nose cone surface is crafted to provide smooth operation and long-lasting durability, helping your transmission perform reliably. Built to meet factory specifications, this input retainer maintains the quality and dependability you expect from your vehicle’s original equipment, making installation and use hassle-free.
GM Genuine Parts Upper Steering Shaft Bearing
The GM Genuine Parts FW184 Upper Steering Shaft Bearing is designed to fix any steering looseness caused by worn steering shaft bearings. This is a recommended replacement part for your GM vehicle's original factory component. It offers the quality, reliability, and durability of GM OE, and it is manufactured to GM OE specification for fit, form, and function. This product falls under the category of Automatic Transaxle Bearings.
General Motors GM 23449568 Trim Panel
The GM Trim Panel 23449568 is a genuine part made by General Motors, ensuring it fits perfectly with your vehicle. This means you don’t have to worry about compatibility issues when replacing or repairing your trim panel. The product is designed specifically as a trim panel, which helps maintain the interior look and protection of your car. With part number 23449568, you can easily find the exact piece you need. Plus, it’s manufactured to meet high standards for fit, form, and function, so you get a reliable and well-made component that works just like the original.
GM 22943106 Differential Drive Shaft Bearing
The GM Drive Shaft Bearing is designed to fit popular GM models like the Tahoe, Yukon, Escalade, Suburban, Yukon XL, and Escalade ESV. This bearing is an inner component that supports the differential drive shaft, helping your vehicle’s transmission system work smoothly. By using this part, you can expect improved reliability and performance in your vehicle’s drivetrain. It ensures proper alignment and rotation of the drive shaft, which can reduce wear and tear, helping you avoid costly repairs. If you own one of these GM models, this bearing is a convenient and essential replacement part to keep your vehicle running efficiently.
Frequently Asked Questions (FAQs)
1. Can I drive with a bad transmission input shaft bearing?
It is not recommended to drive with a bad transmission input shaft bearing. Continuing to drive with a faulty bearing can lead to further damage as the metal particles from the worn bearing can contaminate other bearings in the transmission. It is best to replace the input bearings and input shaft seal as soon as possible to avoid more extensive repairs.
2. How do I know if my input shaft bearing is bad?
There are several signs that indicate a bad input shaft bearing in a transmission. These include strange noises in neutral, persistent noises from the gears, and sudden gear slips. If you experience any of these symptoms, it is likely that the input shaft bearing is faulty and requires attention.
3. What causes an input shaft bearing to fail?
The primary cause of input shaft bearing and seal failures is misalignment between the drive motor and the gearbox. It is crucial to ensure proper alignment to prevent damage to the input shaft bearing. Taking the time to align the components correctly can help avoid premature failure of the input shaft bearing.
4. What happens when a transmission bearing goes out?
When a transmission bearing fails, it can seize, leading to excessive wear on the pressure plate's fingers. The throw-out bearing, which is responsible for engaging and disengaging the clutch, may need to be replaced when the clutch is replaced. Regular maintenance of the throw-out bearing is not required, but replacement is necessary when clutch replacement becomes necessary.
5. What are the symptoms of automatic transmission bearings?
Defective automatic transmission bearings can cause loud gear shift sounds. These bearings may produce constant noise from the engine during gear shifting, which can put additional pressure on the transmission and load on the engine. If you notice such symptoms, it is advisable to have the automatic transmission bearings inspected and replaced if necessary.
6. What is the most common cause of worn input and output shaft bearings?
The most common cause of worn input and output shaft bearings is lubrication failure. Improper lubrication, such as insufficient lubrication, using improper lubricants, or subjecting the bearings to excessive temperatures that degrade the lubricant, can lead to up to 80% of bearing failures. It is essential to ensure proper lubrication to prevent premature wear and failure of the input and output shaft bearings.
7. How much does it cost to replace a transmission bearing?
The cost of replacing a transmission bearing can vary depending on various factors. On average, it can range from $330 to $820. The cost includes labor, which typically takes around four to six hours to complete. Labor prices can vary between $75 and $120 per hour. It is recommended to consult with a qualified mechanic for an accurate estimate based on your specific situation.
8. What are the first signs of bearing failure?
The first signs of bearing failure include issues related to lubrication, such as using the wrong type or quantity of lubricant. Other signs include contamination, vibration, excessive noise, and increased operating temperature. If you notice any of these signs, it is important to investigate and address the bearing issue promptly to prevent further damage and potential failure.
During our automatic input shaft bearing research, we found 24 automatic input shaft bearing products and shortlisted 10 quality products. We collected and analyzed 2,349 customer reviews through our big data system to write the automatic input shaft bearings list. We found that most customers choose automatic input shaft bearings with an average price of $70.92.
The automatic input shaft bearings are available for purchase. We have researched hundreds of brands and picked the top brands of automatic input shaft bearings, including GM GENUINE PARTS, General Motors, BBB. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.
Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.