Product Description
MAHLE MS19403 intake manifold gasket set restores OE-tight intake sealing on 2006–2010 GM 6.6L Duramax LBZ/LMM. Molded-rubber construction resists heat cycling and clamp load, helping prevent unmetered air leaks that sap drivability, power, and fuel economy. Direct-fit geometry speeds installs for fleet maintenance, work trucks, and daily drivers.
Fitment
- 2006–2007 LBZ 6.6L Duramax (incl. 2007 Classic)
- 2007.5–2010 LMM 6.6L Duramax
- Medium duty & van derivatives listed on OE catalogs (Kodiak/TopKick/Express/Savana) where applicable to LBZ/LMM intake pattern
What’s Included
- Molded-rubber intake manifold gasket set (services one engine)
- RTV where required by OE procedure
- Note: Plenum gasket not included (per MAHLE data).
Cross-Reference / OE Notes
- Engine Intake Manifold Gasket Set, molded rubber; package qty noted as 3 in MAHLE catalog
Recommended MAHLE Pairings (Internal Links)
- MAHLE MIS19403 Intake Manifold Installation Kit – 06–07 LBZ/late LLY
- MAHLE G31907 Air Intake Heater Gasket – 06–10 LBZ/LMM
- MAHLE F31912 EGR Valve Gasket – 06–10 LBZ/LMM
- MAHLE F31910 EGR Valve Gasket – 06–10 LBZ/LMM
- MAHLE MS19402 Intake Manifold Gasket Set – 01–05 LB7/LLY
Why MAHLE
- OE-grade molded rubber for durable, elastic seal retention
- Exact-fit port geometry and bead patterns
- Trusted sealing performance for stock and towing applications
Installation Notes
- Clean mating surfaces; follow GM torque sequence/spec
- Use included RTV only where OE calls for it
- Verify PCV/charge-air connections to avoid post-MAF leaks
FAQ
Will MS19403 fit both LBZ and LMM?
Yes—MS19403 covers 2006–2007 LBZ (incl. 2007 Classic) and 2007.5–2010 LMM applications.
Does this include the intake plenum gasket?
No—plenum gasket is not included. Add it separately if your service procedure requires replacement.
What material are the gaskets?
Molded rubber engineered to OE standards for heat-cycle durability.
What are the UPC/GTIN codes?
UPC (GTIN-12): 027067721143; Case/Package GTIN-14: 00027067721143.
Specifications for Mahle MS19403
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | MS19403 |
| UPC | 027067721143 |
| GTIN | 00027067721143 |
| Shipping Info | Calculated at checkout; typical small-pack gasket set. Approx. 12.5" L × 2.25" W × 2.25" H; ~0.38 lb. |
| Country of Origin | Taiwan (per listing) |
| Prop 65 | This product can expose you to chemicals including lead and lead compounds, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
