ACL 02-07 Subaru WRX & STI 0.25mm Oversized High Performance Main Bearing
Part Number: acl5M8309H-.25
Description: Main Bearings; Tri-Metal; Upper & Lower; Flange in Position 5
Max Wall at Crown: 0.0789" (2.005mm)
Min Std Shaft Size: 2.3616" (59.984mm)
Min Std Tunnel Size: 2.5197" (64.000mm)
Size: .25
Max Std Shaft Size: 2.3622" (60.000mm)
Max Std Tunnel Size: 2.5205" (64.020mm)
Oil Clearance: Standard
Max Overall Length: 0.748" (19.00mm) w/ 8297H/HX 0.595" (15.12mm) w/ 8298H/HX 0.904" (22.95mm) w/ 8309H/HX Flange
Fitment: 02-07 Subaru WRX & STI
Details:
Main bearings
.010" Undersized
Made using softer metals
Designed to allow a thin layer of oil lubricates the connection between the bearings and the crank allowing the crank to "float" to reduce wear
Note: Subaru main bearings are specific to either a #5 or #3 journal bearing position. Journal bearing position is not VIN or year specific, it must be known prior to purchase.