Our offices are closed for Good Friday. Orders placed online will be processed Monday 4/6/2026.
Our offices are closed for Good Friday. Orders placed online will be processed on Monday 4/6/2026.
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Genuine Cummins Part
Replaces old part number 4988952.
This is a genuine Cummins Oil Ring Seal for ISB and B Series engines. This is a genuine Cummins part shipped with a 12-month warranty.
Call us at 888.687.0539 with questions or buy online. As always, your satisfaction is guaranteed!
OIL SEAL - 4BT / 6BT
$16.83
FRONT CRANKSHAFT SEAL KIT - ISB / QSB (WITH INSTALLATION TOOL)
$25.67
BUSHING - QSB4 / 6B5.9 / B5.9-M330 / QSB6.7 / QSB4.5 / B5.9-C / B3.9-C76
$9.64
