Product Description
MAHLE OS32172 is an OE-style engine oil pan gasket for the 1989–1998 Cummins 3.9L 4BT. Designed to meet or exceed factory specs, it restores a clean, reliable seal to help prevent leaks and maintain proper lubrication.
- Direct-fit oil pan gasket for Cummins 3.9L 4BT applications
- OE-style form, fit, and function
- Meets or exceeds OEM specifications
- GTIN/UPC: 725975644867
Fitment
- 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 Cummins 3.9L 4BT applications (incl. Dodge 3.9L 4BT where equipped and common swaps/industrial uses)
Cross Reference Numbers
- Cummins: 3959052 (commonly used for 4BT/6BT oil pan gasket), 3901287, 3904577, 3906028, 3911536, 3931346, 3937072
- MAHLE: OS32172
What’s Included
Engine oil pan gasket (quantity 1). Reuse factory hardware; inspect pan flange and block rails before installation.
FAQ
Will this fit my 1989–1998 3.9L Cummins 4BT?
Yes—this gasket is listed for 3.9L 4BT applications across the 1989–1998 range. Verify your engine family and pan style before ordering.
Does it replace common OE numbers?
For this application, the oil pan gasket is commonly cross-referenced to Cummins 3959052 and related supersessions (see list above). Always match by engine and pan.
Material and thickness?
This is an OE-style replacement meeting factory specs. Follow torque pattern/values and ensure proper surface prep for best sealing.
Anything else I should replace?
Consider fresh oil and filter, RTV at corners if specified by Cummins service info, and inspect pan bolts for corrosion or stretch.
