KING ENGINE BEARINGS MB5278AM0.25 Crankshaft 611500381072 140CI /2.3L L4

( Brand: King Engine Bearings ), ( Type: Crankshaft Main Bearing ), ( Manufacturer Part Number: MB5278AM0.25 ), ( Items Included: Engine Bearing ), ( Universal Fitment: No ), ( Size: .25 ), ( Fitment Type: Performance/custom ), ( Notes: Clevite Acl King ), ( UPC: 611500381072 )

Review KING ENGINE BEARINGS .25 Crankshaft Main Ford 140ci /2.3l L4

The MB5278AM0.25 25 crankshaft engine bearings from King Engine Bearings are specifically designed for the Ford 140ci / 2.3L L4 engine. These bearings are engineered to deliver superior performance and reliability, making them an excellent choice for high-performance applications.

The MB5278AM0.25 crankshaft bearings are made from high-quality materials, including a precision-machined steel backing plate and a premium, low-friction bronze bearing material. The bearing shells are designed with a deep groove to provide ample oil supply for efficient lubrication and cooling.

The bearing design incorporates a pre-lubed, non-asbestos, composite material, which reduces the amount of break-in time required. This also results in a smoother running engine, with reduced noise and vibration.

The MB5278AM0.25 crankshaft bearings feature a precision-machined fit, ensuring a snug and secure installation. The bearing clearances are carefully controlled to provide optimal engine performance and efficiency.

These bearings are designed to withstand the rigors of high-performance use. They are capable of handling increased horsepower and torque, making them ideal for upgraded engines or high-performance applications.

The MB5278AM0.25 25 crankshaft engine bearings from King Engine Bearings are manufactured to the highest standards of quality and precision. They are engineered to provide superior performance, reliability, and durability, making them an excellent investment for any Ford 140ci / 2.3L L4 engine. With their advanced design and high-quality materials, these bearings are sure to provide years of trouble-free operation, even in the most demanding conditions.

Buying the King Engine Bearings MB5278AM0.25 25 crankshaft for a Ford 140ci/2.3L L4 engine comes with several pros and cons that every potential buyer should consider before making a decision.

1. High-Quality Material: King Engine Bearings are known for their high-quality materials and precision manufacturing, ensuring durability and reliability. This particular bearing uses a chrome molybdenum alloy steel for the bearing shell and a bronze bushing for the bearing surface.

2. Reduced Engine Noise: The superior design and materials used in these bearings can help reduce engine noise and vibration, leading to a smoother and quieter running engine.

3. Improved Engine Performance: The increased durability and reliability of these bearings can help improve engine performance by reducing the likelihood of bearing failure and the need for frequent engine rebuilds or replacements.

1. Cost: King Engine Bearings are typically more expensive than OEM (original equipment manufacturer) bearings. This can be a significant consideration for those on a tight budget.

2. Installation Complexity: Installing aftermarket bearings like the King MB5278AM0.25 25 crankshaft can be more complex than installing OEM bearings, as they may require additional tools and expertise.

3. Potential Compatibility Issues: While King Engine Bearings are generally known for their compatibility with a wide range of engines, there is always a small risk of compatibility issues, especially when using aftermarket parts. It is essential to ensure that the bearing is a perfect fit for your specific engine model and configuration.

The decision to buy the King Engine Bearings MB5278AM0.25 25 crankshaft for a Ford 140ci/2.3L L4 engine ultimately depends on your budget, installation capabilities, and desired engine performance. If you are looking for high-quality, durable, and quieter running bearings, and you are willing to pay a premium for them, then these bearings may be an excellent choice. However, if cost is a significant concern or you have limited installation experience, you may want to consider OEM bearings instead.

If you have the budget and are looking for high-performance, durable, and quieter running bearings, then the King Engine Bearings MB5278AM0.25 25 crankshaft for your Ford 140ci/2.3L L4 engine is an excellent choice. However, if cost is a concern, or you have limited installation experience, you may want to consider OEM bearings as a more cost-effective and easier-to-install alternative. It is essential to ensure that you choose the right bearing for your specific engine model and configuration and follow the installation instructions carefully to ensure optimal performance and longevity.

Details:

For listings with free shipping, it only applies within the continental 48 states. Regardless if its race, track, or stock replacements they have proven get the job done. Compatible with: FORD 140CI /2.3Liter L4Number of pairs in a set: 5Bearing size: .25King Bearings have been proven time and again to be the best on market.

part #: mb5278am025 prices

• $44.99-$61.45

specifications engibearing:

• for makes: Ford
• brand: King Engine Bearings
• type: Crankshaft Main Bearing
• manufacturer part number: MB5278AM0.25
• items included: Engine Bearing
• universal fitment: No
• size: .25
• fitment type: Performance/custom
• notes: Clevite Acl King
• upc: 611500381072

offer engibearing:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: September 16, 2025

seller engibearing:

• city: Wrightstown, Wisconsin
• rating: 98.7%
• # reviews: 66555

general engibearing:

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

returns engibearing:

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

payments engibearing:

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

shipping engibearing:

• cost: $0.00
• type: Fixed
• class: Standard
• transit: 3-7 Days
• service: Standard

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