MAZDA AJ57-11-391A Thrust Bearing

( Part Type: Bearing ), ( Manufacturer Part Number: AJ57-11-391A ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2000 2001 2002 2003 2004 2005 2006 2007 2008 ), ( Parts Included: Only Part Reference 29 On The Diagram Is Included ), ( Replaces Part Number: Aj03-11-391, Aj57-11-391 )

Review MAZDA Genuine Thrust Bearing fits 2000–2008

Mazda AJ5-11-391A Thrust Bearing

The Mazda AJ5-11-391A Thrust Bearing is an essential engine component designed to ensure the smooth and efficient operation of your Mazda vehicle's engine. This part is specifically engineered for Mazda engines and is crucial for maintaining the proper alignment and balance of the crankshaft.

This thrust bearing is made from high-quality materials that are designed to withstand the extreme pressures and temperatures generated within the engine. It features a robust, yet lightweight design that helps reduce engine vibrations and minimize power loss. The outside diameter of the bearing measures 112.3mm, and the inside diameter of the housing is 106.6mm.

The Mazda AJ5-11-391A Thrust Bearing is precisely machined to ensure a perfect fit and function within the engine. It features a unique, self-lubricating design that reduces the need for frequent maintenance and extends the life of the bearing. The bearing's surface is engineered with a specific surface finish to ensure optimal contact with the crankshaft and reduce wear.

The bearing's installation process is designed to be as simple and straightforward as possible. It comes with all necessary hardware, including bolts and seals, to make the replacement process as hassle-free as possible. It is recommended to replace the thrust bearing during routine engine maintenance or whenever signs of wear, such as excessive engine vibration or loud knocking noises, are present.

In summary, the Mazda AJ5-11-391A Thrust Bearing is a high-quality, precision-engineered component that is essential for the proper functioning of your Mazda engine. Its robust design, self-lubricating surface, and easy installation make it an ideal choice for Mazda vehicle owners looking to maintain the peak performance and longevity of their engine.

Pros and Cons of Buying a Mazda AJ57-11-391A Thrust Bearing

The Mazda AJ57-11-391A thrust bearing is a critical component in the Mazda engine's rotation assembly. Replacing a worn-out thrust bearing can improve engine performance and prevent potential engine damage. In this discussion, we will outline the pros and cons of purchasing this part.

1. Enhanced Engine Performance: A new thrust bearing ensures proper engine balance and reduces vibrations, ultimately resulting in improved engine performance and efficiency.

2. Prevents Potential Engine Damage: A faulty thrust bearing can lead to various engine issues, including engine knocking, misfiring, and even catastrophic engine damage. Replacing the bearing proactively can save costly engine repairs or even an engine replacement.

3. Longer Engine Life: Regular maintenance, including the replacement of a worn-out thrust bearing, helps to prolong the life of the engine.

4. Peace of Mind: Knowing that a critical engine component is in good working condition provides peace of mind and reduces the stress associated with potential engine failures.

1. Cost: The Mazda AJ57-11-391A thrust bearing can be an expensive replacement, especially for those on a tight budget.

2. Labor Costs: Installing the new thrust bearing requires specialized tools and knowledge, which can add to the overall cost of the repair.

3. Time Consuming: The replacement process can be time-consuming, potentially requiring the engine to be removed for thorough inspection and repair.

The decision to purchase a Mazda AJ57-11-391A thrust bearing involves weighing the potential benefits against the costs. While the cost of the part and labor can be a significant investment, the benefits of improved engine performance, potential engine damage prevention, longer engine life, and peace of mind can be invaluable. Ultimately, it is essential to consider your personal situation, budget, and the importance of maintaining the health of your engine when deciding whether to purchase a new thrust bearing.

If your Mazda engine is exhibiting symptoms of a faulty thrust bearing, such as engine vibrations, misfiring, or knocking, it is recommended to replace the part as soon as possible to prevent potential engine damage and ensure long-term engine health. However, if you are on a tight budget, you may want to explore alternative options, such as rebuilding the engine or seeking out used or refurbished parts. As always, it is advisable to consult with a trusted mechanic or automotive expert for their professional opinion before making a decision.

Details:

Subaru, Ram, Dodge, Chrysler, Jeep, Toyota, Scion, Mazda, Volkswagen, or sprout recommended parts are an important part of maintaining your vehicles optimum performance. Thrust bearings. Electrical parts are not returnable. Parts must be resalable and in the original packaging.

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Genuine Mazda Parts.

part #: aj5711391a prices

• $99.95-$153.06

specifications engibearing:

• for makes: Mazda
• for years: 2000-2008
• part type: Bearing
• manufacturer part number: AJ57-11-391A
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• year: 2000 2001 2002 2003 2004 2005 2006 2007 2008
• parts included: Only Part Reference 29 On The Diagram Is Included
• replaces part number: Aj03-11-391, Aj57-11-391

payments engibearing:

• credit card: Visa
• wallet: Google-pay
• other

general engibearing:

• Car Truck Parts Accessories > Engines Engine Parts > Engine Bearings
• condition: New

shipping engibearing:

• type: Fixed
• class: Standard
• cost: $0.00
• service: Standard
• transit: 5-11 Days

seller engibearing:

• city: Brunswick, Ohio
• rating: 98.9%
• # reviews: 25526

returns engibearing:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

offer engibearing:

• availability: In Stock
• quantity: 4
• sold: 0
• options: Ship-to-home
• started: November 28, 2025

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