The ACL Race Series Main Bearing Set in .25 Oversize is a high-performance crankshaft component designed for precision engine building. With the product code 5M8361H-.25, this bearing set is part of the renowned ACL Race Series brand.

Made from Race Series (Tri-Metal) material, this main bearing set is suitable for positions 1, 2, 4, and 5 in your engine. The standard shaft diameter ranges from 2.1648" to 2.1654" (54.985mm to 55.000mm) with oil clearance specifications to be announced.

The maximum wall thickness is 0.0787" (2.000mm) and the housing bore size is between 2.3236" to 2.3243" (59.020mm to 59.038mm) with a maximum length of 0.7560" (19.200mm). The standard shaft diameter for thrust washers is 1.9661" to 1.9668" (49.938mm to 49.956mm) with oil clearance details to be announced. The maximum wall thickness for thrust washers is 0.0785" (1.995mm) and the housing bore size ranges from 2.1259" to 2.1267" (53.998mm to 54.018mm) with a maximum length of 0.9060" (23.000mm).

Included in the set are 2 Thrust Washers (part number 2T1689-STD) and the bearings are designed to be .25mm Oversize for optimal performance.

The ACL Race Series brand has a long history of manufacturing precision engine bearings in Launceston, Tasmania, Australia. With over 70 years of experience, ACL has been a major OEM supplier to the automotive industry worldwide while also offering a comprehensive range of replacement products for the aftermarket.

ACL Race Series Performance Engine Bearings are known for their robust metallurgy, quality, precision, innovation, and high performance. With a strong pedigree in motorsport, ACL has been a trusted partner for engine builders in various racing disciplines.

From Formula 1 to Australian Supercars Championship, drag racing, speedway, drifting, and rally, ACL Race Series Performance Engine Bearings have been the preferred choice for engine builders globally. The extensive range covers over 200 engine applications for Australian, American, Japanese, Korean, and European vehicles, with ongoing expansion to cover new engine releases.

ACL maintains a high level of vertical integration in its manufacturing process, ensuring quality control from design to final product. The company holds internationally recognized certifications for Quality Management, Environmental Management, and Occupational Health & Safety Management. With ACL Race Series Main Bearing Set in .25 Oversize, you can trust in the superior quality and performance of this essential engine component.