Product Description
Restore a leak-free seal at the EGR valve with the MAHLE F31912 for 2006–2010 GM 6.6L Duramax LBZ/LMM. This OE-style stamped steel gasket is engineered for long service under heat, soot, and vibration—perfect for daily, tow, and work trucks that can’t afford exhaust leaks or lost turbo response.
Fitment
- 2006–2007 Chevrolet/GMC 2500HD & 3500HD – 6.6L Duramax LBZ
- 2007.5–2010 Chevrolet/GMC 2500HD & 3500HD – 6.6L Duramax LMM
- Also used on select GM medium-duty/vans with LBZ/LMM (verify by bolt pattern)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
- MAHLE F31910 – EGR valve gasket (inline bolt holes) for 06–10 LBZ/LMM
- MAHLE F39394 – EGR tube-to-EGR valve gasket for 06–10 LBZ/LMM
Notes
Clean mating surfaces thoroughly. Verify EGR cooler/valve bolt-hole orientation (this gasket is for offset holes). Torque fasteners to factory spec.
FAQ
Will F31912 fit my 2007–2010 LMM?
Yes—F31912 is designed for LBZ/LMM applications that use the offset bolt-hole EGR valve gasket. Always match the bolt pattern before installation.
What material is the gasket?
Stamped steel built to OE spec for heat and corrosion resistance in EGR duty.
Do I need sealant?
No sealant is typically required on clean, flat mating surfaces. Follow factory service procedures.
Specifications for Mahle F31912
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | F31912 |
| Engine Compatibility | 2006–2010 GM 6.6L Duramax LBZ/LMM |
| Material | OE-style stamped steel |
| UPC | 027067721389 |
| GTIN | 027067721389 |
| Shipping | Ships via standard ground; expedited options available at checkout |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more |
