Product Description
MAHLE MIS19403 intake manifold installation kit restores OE-tight sealing on 2006–2007 GM 6.6L Duramax LLY/LBZ (incl. 2007 Classic). The molded-rubber intake and plenum gaskets with included seals help prevent unmetered air leaks, rough idle, and soot tracking; RTV is included for a clean, reliable reseal on work trucks, tow rigs, and daily drivers.
Fitment
- 2006–2007 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LLY/LBZ (incl. 2007 Classic)
- 2006–2007 GMC Sierra 2500HD/3500HD 6.6L Duramax LLY/LBZ (incl. 2007 Classic)
What’s Included
- Molded-rubber intake manifold gaskets
- Plenum gaskets + miscellaneous intake seals
- RTV sealant (hardware not included)
Cross-Reference / Alternatives (Mahle only)
- Need just the gasket set? Use MAHLE MS19403 – 2006–2010 LBZ/LMM
- Earlier models: MAHLE MS19402 – 2001–2005 LB7/LLY
Recommended Mahle Pairings (Internal links)
- MAHLE G31907 Air Intake (Grid) Heater Gasket – 2006–2010 LBZ/LMM
- MAHLE GS33505A Injector Seal Kit – 2004.5–2007 LLY/LBZ
Why MAHLE
- OE-style molded rubber for clamp-load retention across heat cycles
- Direct-fit geometry to minimize rework and downtime
- Trusted sealing on high-mileage fleets and daily drivers
Installation Notes
- Clean mating surfaces; inspect Y-bridge/runners for warp
- Install per GM torque sequence/values; use RTV where specified
- Verify VIN/engine code for LLY/LBZ before teardown
FAQ
Will MIS19403 fit my LBZ?
Yes—this kit is specified for 2006–2007 LBZ and late-LLY (incl. 2007 Classic).
Does it include RTV and every intake seal?
Yes—intake & plenum gaskets plus miscellaneous intake seals and RTV are included. Hardware is not included.
How many pieces are in the kit?
Consumer pack is typically listed as 13 pieces.
Specifications for Mahle MIS19403
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | MIS19403 |
| UPC / GTIN | 00027067721686 |
| Shipping Info | Ships from CPP Diesel; shipping calculated at checkout. Typical listing shows Width 7.50", Height 6.00", Depth 8.25". |
| Country of Origin | Not specified |
| 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. |
