DS-3937556 Belt Tensioner For Cummins 4BT3.9, 6BT5.9, And ISB Diesel Engines

Compatible With 4BT3.9, 6BT5.9, And QSB3.9 Engines

OEM #: 3937556SKU: DS3937556

Ships in 1-2 days

Sale price$100.02

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Special Order Item - not eligible for return

This is a Belt Tensioner for Cummins 4BT3.9, 6BT5.9, ISB, ISB3.9, ISB4.5 and QSB3.9 engines.

SKU DS3937556
OEM Number 3937556
Part Type Belts, Tensioners
OEM Brand CUMMINS

Aftermarket warranty

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Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.