1. Engine Bearings Parts
  2. sku: 130646741305672
  3. BMW 5M1581H-.25

BMW 5M1581H-.25 Race Bearing Set S65B40 0.25 4.0L V8

fits model: M3, E90. make: Bmw.

5m1581h-.25 Acl Race 0.25 Mm Oversize Main Bearing Set For Bmw S65b40 M3 4.0l E90 V85m1581h-.25 Acl Race 0.25 Mm Oversize Main Bearing Set For Bmw S65b40 M3 4.0l E90 V8 #25m1581h-.25 Acl Race 0.25 Mm Oversize Main Bearing Set For Bmw S65b40 M3 4.0l E90 V8 #3

( Non-domestic Product: No ), ( Type: Main Bearing ), ( Ipn: S65b40 4.0l M3 E90 ), ( Oversize: 0.25 Mm ), ( Fitment Type: Performance/custom ), ( Manufacturer Part Number: 5M1581H-.25 ), ( Performance Part: Yes )

Review BMW Acl Race 0.25mm Oversize Main Bearing Set 4.0l V8 fits M3 E90

The ACL 5M1581H-.25 Race 0.25 Bearing Set is an essential upgrade for BMW S65B40 M3 4.0L E90 V8 engine owners seeking enhanced performance and durability. This set includes four high-quality 0.25 inch (6.35mm) bearing units, specifically designed to replace the OEM bearings in the BMW S65B40 engine's crankshaft main journals.

Each ACL bearing is precision-machined from high-grade steel, ensuring a perfect fit and minimizing friction. The race surface of the bearing is treated with a special coating to reduce wear and provide excellent lubrication retention, ensuring smooth and quiet operation even under high load conditions.

The ACL 5M1581H-.25 Race 0.25 Bearing Set is engineered to handle the increased power and torque generated by high-performance engine modifications, making it an ideal choice for track use or aggressive street driving. The set includes the four necessary bearing units, as well as installation instructions to ensure a straightforward and hassle-free installation process.

By upgrading to the ACL 5M1581H-.25 Race 0.25 Bearing Set, BMW S65B40 M3 4.0L E90 V8 engine owners can enjoy improved performance, enhanced durability, and reduced maintenance costs in the long run. This bearing set is a must-have for any serious BMW S65B40 engine builder or performance enthusiast looking to maximize their engine's potential.

Pros of buying a ACL 5M1581H-.25 Race 0.25 Bearing Set for BMW S65B40 M3 4.0L E90 V8:

1. High-quality materials: ACL bearings are known for their high-quality materials, such as their proprietary ACL Race Series bearing material, which can withstand high temperatures and extreme loads.

2. Improved performance: ACL bearings can help improve the performance of your engine by reducing friction and improving the smoothness of the rotating components.

3. Longer lifespan: ACL bearings are designed to last longer than OEM bearings, which can help save you money in the long run by reducing the need for frequent replacements.

4. Racing application: If you are a racer or enthusiast, ACL bearings are a popular choice due to their ability to handle high power and extreme conditions.

Cons of buying a ACL 5M1581H-.25 Race 0.25 Bearing Set for BMW S65B40 M3 4.0L E90 V8:

1. Higher cost: ACL bearings are generally more expensive than OEM bearings, which can be a deterrent for some people.

2. Potential compatibility issues: While ACL bearings are designed to fit your car, it's always a good idea to check with a professional mechanic to ensure compatibility before making a purchase.

3. Installation difficulty: Installing ACL bearings can be more difficult than installing OEM bearings, as they may require special tools and procedures.

Conclusion:

If you are looking for high-quality bearings that can improve the performance of your BMW S65B40 M3 4.0L E90 V8 engine, the ACL 5M1581H-.25 Race 0.25 Bearing Set is a good option to consider. While they are more expensive than OEM bearings, they can last longer and provide better performance, especially for racing applications. However, it's important to ensure compatibility and installation difficulties before making a purchase.

Recommendation:

If you are considering buying the ACL 5M1581H-.25 Race 0.25 Bearing Set, it's recommended to consult with a professional mechanic first to ensure compatibility and install the bearings properly. It's also important to weigh the benefits of improved performance and longer lifespan against the higher cost, and consider whether the investment is worth it for your specific needs and usage of your car.

Details:

3/4 GROOVED MAIN BEARINGS to optimize bearing load carrying surface area and oil flow the Conrad bearings.ID CHAMFERS on bearing edges where required to accommodate large fillet radius performance crankshafts. ACL Race 0.25mm OverSize Main Bearing Set For BMW S65B40 M3 4.0L E90 V8,:: >: BRAND NEW IN BOX: FITMENT: / 3.999 cc V8,: High performance Triumphal engine bearings designed to withstand higher RPM conditions strength overlay plate with reduced thickness for improved fatigue properties, HIGH STRENGTH OVERLAY PLATE properties HARDENED STEEL BACKS on all rod improve the support of bearing lining and assist retention in housing. SPECIFICATIONS: OverSize.

Head and Main Studs. INCREASED CRUSH for improved bearing retention ELIMINATION OF FLASH PLATING on the back of bearings to improve heat transfer through and maximize grip between its housing. TIGHT CONSISTENT WALL TOLERANCES to help you maintain consistent clearances. INCREASED ECCENTRICITY to compensate for bore distortion at high rpm and assist in the formation of hydrodynamic oil films.

part #: 5m1581h25 prices

  • $88.99-$276.69

specifications engibearing:

  • for models: M3, E90
  • for makes: Bmw
  • non-domestic product: No
  • type: Main Bearing
  • interchange part number: S65B40 4.0L M3 E90
  • oversize: 0.25 Mm
  • fitment type: Performance/custom
  • manufacturer part number: 5M1581H-.25
  • performance part: Yes

shipping engibearing:

  • cost: $0.00
  • transit: 3-7 Days
  • class: Standard, Expedited, One-day
  • service: Standard, Expedited, Overnight
  • type: Fixed

returns engibearing:

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

general engibearing:

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

seller engibearing:

  • rating: 99.9%
  • city: San Diego, California
  • # reviews: 52444

payments engibearing:

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offer engibearing:

  • availability: In Stock
  • sold: 0
  • best offers: True
  • started: June 10, 2024
  • options: Ship-to-home
  • quantity: 1
for models: m3, e90, for makes: bmw, non-domestic product: no, type: main bearing, oversize: 0.25 mm, fitment type: performance/custom, performance part: yes,
category: auto parts > car truck parts accessories > engines engine parts > engine bearings, sku: 130646741305672,

Bmw 5M1581H-.25 Is Similar To:

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5 offers $88.99–$276.69 USD
  • New. Offer #1 priced at $276.69 + $10.00 delivery = $286.69* total. Wall mm 2.500. Half typeUpper & lower.+$10.00 shipping
  • New. Offer #2 priced at $88.99 + $0.00 delivery = $88.99* total. This will solve your problem faster. (4.0L) M3 E90 3999cc V8.FREE SHIPPING
  • New. Offer #3 priced at $88.99 + $0.00 delivery = $88.99* total. FREE SHIPPING
  • New. Offer #4 priced at $90.99 + $0.00 delivery = $90.99* total. FREE SHIPPING
  • New. Offer #5 priced at $299.88 + $29.31 delivery = $329.19* total. INCREASED CRUSH for improved bearing retention. For BMW ( 4.0L ) M3 E92 3999cc V8.+$29.31 shipping

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