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Direct replacement for OEM part number 3824498, 1338 and ST-213.
Fits for 1989-2016 Cummins 4BT 3.9L, for B series 5.9L, for ISB 5.9L 6.7L and for QSB 5.9L 6.7L.
This tool #1338 is required for installing seal number 3937111, 3904353 or the seal from kit 3802820.
Used to easily & properly replace / install the crankshaft seal, prevents the seal from leaking.
A MUST HAVE TOOL - Installing the seal uneven can cause leaks prematurely, make sure the job is done right with this installation tool.