ACL Bearings 7M2428HC-.25 Race Series Main Bearing Set for Nissan RB26DETT 6-Cylinder, 0.25 mm Undersize, Coated

The ACL Bearings 7M2428HC-.25 Race Series Main Bearing Set is designed for Nissan six-cylinder engines, including the RB26DETT. This matched set features a 0.25 mm undersize configuration for crankshafts that have been precisely machined to accept undersize bearings. The coated bearing surface supports reliable performance in demanding street, competition, and high-output applications.
Manufactured for builders who require consistent fit and dependable service, this ACL Bearings main bearing set is engineered to help maintain proper crankshaft alignment and oil clearance when installed according to the engine manufacturer’s specifications. The Race Series design provides a performance-focused solution for rebuilt or modified Nissan engines, while the coated construction adds an additional layer of protection between the bearing and crankshaft journals.
Before installation, verify crankshaft journal measurements, bearing clearance, thrust location, and application compatibility. The 7M2428HC-.25 part number identifies this specific 0.25 mm undersize, coated configuration, making it important to match the bearing size with the crankshaft machining specifications. This set is intended for Nissan RB26DETT six-cylinder applications and should be installed by a qualified technician using proper assembly procedures and lubrication. It is not air restricted and does not require truck freight shipping.

Features:

• Brand: ACL Bearings

• Part Number: 7M2428HC-.25

• Product Type: Race Series main bearing set

• Application: Nissan RB26DETT and select Nissan six-cylinder engines

• Bearing Size: 0.25 mm undersize

• Construction: Coated bearing design

• Engine Configuration: Nissan 6-cylinder

• Intended Use: Engine rebuild, performance, and high-output applications

• Shipping Classification: Not air restricted and not truck freight only