
The Story
- Press fit front seal to engine block & crankshaft for proper fitment of inner & outer seal body (works w/ 3878)
- Services GM/ISUZU 6.6L Duramax 2001+ GMT800, 2500HD & 3500
- Installation instructions: Set new seal on inner body of tool. Attach outside ring of tool to the end of the crankshaft assembly, turn forcing screw to press in new seal
- Compare to GM Factory tool J-44645
Ā WARNING:Ā Cancer & Reproductive harmĀ www.P65Warnings.ca.gov

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
- Press fit front seal to engine block & crankshaft for proper fitment of inner & outer seal body (works w/ 3878)
- Services GM/ISUZU 6.6L Duramax 2001+ GMT800, 2500HD & 3500
- Installation instructions: Set new seal on inner body of tool. Attach outside ring of tool to the end of the crankshaft assembly, turn forcing screw to press in new seal
- Compare to GM Factory tool J-44645
Ā WARNING:Ā Cancer & Reproductive harmĀ www.P65Warnings.ca.gov














