Wiped Cummins mains knock at the bottom of the block and drop oil pressure to the rods. Clevite MS-2328P is the P-series main set for a standard crank. It fits 5.9 and 6.7 engines from 1989 through 2024.

• Series: P-series is the Clevite tri-metal bearing, steel-backed with a copper-lead overlay, and it is the replacement shell rather than the H-series piece.
• Size: Standard size, for a main journal that has not been ground undersize. An undersize journal will be too loose on this shell.
• Part number: Clevite MS-2328P. OE numbers include 3802070 and 4955352.
• Fitment: 5.9 and 6.7 Cummins, 1989-2024.
• Does not fit: The H-series MS-2328H, a 3.9 4BT (MS-1718P), or an undersize crank.
• Not in the box: Rod bearings, pistons, and rings are not in this set. Order thrust washers separately if the engine needs them.

Order today to secure your replacement. Measure the crank journal and confirm standard versus undersize before you install it.