Product Description
MAHLE F31912 is a direct-fit EGR valve gasket for 2006–2010 GM 6.6L Duramax LBZ/LMM engines. Built from durable steel to meet or exceed OE specs, it restores a reliable seal at the EGR valve to help prevent exhaust leaks and soot intrusion.
- Material: Stamped steel (OE-grade)
- Design note: For EGR cooler with offset bolt holes
- Quality: Tested to OE standards for heat and corrosion resistance
- GTIN/UPC: 027067721389
Fitment
- 2006–2007 Chevrolet/GMC 2500HD & 3500HD, 6.6L Duramax LBZ
- 2007.5–2010 Chevrolet/GMC 2500HD & 3500HD, 6.6L Duramax LMM
Cross Reference / Alternatives
- MAHLE: F31912 (this item)
- Common identifiers: GTIN/UPC 027067721389
What’s Included
- (1) EGR valve gasket F31912
Install Notes
- Clean mating surfaces; verify offset bolt-hole orientation before install.
- Torque fasteners to factory spec; replace any damaged hardware.
FAQ
Will this fit my 2006–2010 Duramax?Yes, this gasket fits 6.6L Duramax LBZ (2006–2007) and LMM (2007.5–2010) applications that use the EGR cooler with offset bolt holes. Always visually confirm bolt-hole orientation before install.
Is this an OE-equivalent part?
It’s an OE-grade steel gasket engineered to meet or exceed factory specifications for sealing performance and durability.
Do I need sealant?
No additional sealant is typically required. Install on clean, flat surfaces and torque to spec unless your service manual specifies otherwise.
What symptoms indicate this gasket is failing?
Exhaust odor, soot around the EGR valve flange, hissing under load, and potential driveability issues from unmetered exhaust leaks.
