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Thumbnail Filmstrip of 3.9 Cummins P-Series Main Bearing Set (0.25MM Undersized) Clevite MS-1718P-.25MM Images
A 4BT crank ground 0.25 mm undersize on the mains will wipe the standard MS-1718P. This is the P-series set at 0.25 mm undersize.
- 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: 0.25 mm undersize, for a journal ground 0.25 mm under standard (about 0.010 inch). A standard journal will be too tight.
- Part number: Clevite MS-1718P-.25MM.
- Fitment: 3.9 Cummins 4BT, 1989-1998.
- Does not fit: A standard 4BT crank, a 0.50 mm grind, or a 5.9/6.7 MS-2328 set.
- 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.
A 4BT crank ground 0.25 mm undersize on the mains will wipe the standard MS-1718P. This is the P-series set at 0.25 mm undersize.
- 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: 0.25 mm undersize, for a journal ground 0.25 mm under standard (about 0.010 inch). A standard journal will be too tight.
- Part number: Clevite MS-1718P-.25MM.
- Fitment: 3.9 Cummins 4BT, 1989-1998.
- Does not fit: A standard 4BT crank, a 0.50 mm grind, or a 5.9/6.7 MS-2328 set.
- 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.
Fits: 5.9 Cummins 1989-2002
Fits: 5.9 Cummins 1994-1998
California Restricted
Fits: 5.9 Cummins 1994-1995
Fits: 5.9 Cummins 1994-1998
Fits: 5.9/6.7 Cummins 1989-2024