Product Description
MAHLE F31903 is the OE-quality exhaust manifold to up-pipe gasket for 2001–2016 GM Duramax 6.6L (LB7/LLY/LBZ/LMM/LML). Built to factory specs and designed for high-heat durability (commonly referenced to ~1400°F service in retailer listings), it restores a tight, leak-free seal between the manifold and up-pipe. Package quantity on CPP listing shows 2 (pair).
- Engine: GM Duramax 6.6L (LB7, LLY, LBZ, LMM, LML)
- Position: Exhaust manifold to up-pipe flange
- Material: Beaded/embossed steel style (OE-type)
- GTIN/UPC: 027067720955
- OE Ref: GM 97188685
- Typically stocked as a quick, inexpensive seal-refresh item
Fitment
- 2001–2016 Chevrolet Silverado/Sierra 2500HD & 3500HD (6.6L Duramax LB7/LLY/LBZ/LMM/LML)
- Also fitted to Express/Savana 2500/3500 and other GM 6.6L diesel applications as per OE part ref.
Cross Reference Numbers
- GM: 97188685
- Fel-Pro: 61379
- Elring: 795.230
- Mahle / Clevite: F31903
What’s Included
Exhaust manifold-to-up-pipe gasket (CPP listing indicates packaged as a pair). Verify quantity needed for your repair.
FAQ
Will this fit all 2001–2016 Duramax engines?
Yes—LB7, LLY, LBZ, LMM, and LML are covered for 2001–2016 model years.
Is this sold individually or as a pair?
CPP’s product page shows a package quantity of 2 (pair). Always confirm cart quantity before checkout.
What OE number does this replace?
GM 97188685 is the common OE reference for this gasket.
What material is it?
An OE-style embossed/beaded steel gasket designed to maintain clamp load and seal at elevated exhaust temperatures.
