Product Description
MAHLE MS19398 is a direct-fit exhaust manifold gasket set for the 2001–2016 GM 6.6L Duramax. Built from multi-layer steel (MLS) to handle heat cycling and boost, it maintains a tight seal to prevent leaks and restore efficiency. Set includes two gaskets (left & right banks) for a complete service.
- Material: Multi-Layer Steel (MLS)
- Quantity in set: 2 gaskets (pair)
- Warranty: 1-Year Limited
- GTIN/UPC: 027067720566
Fitment
- 2001–2016 GM 6.6L Duramax: LB7, LLY, LBZ, LMM, LML
Cross Reference Numbers
- GM: 97188684, 98002804
What’s Included
- (2) MLS exhaust manifold gaskets (left & right)
Install Notes
- Inspect manifold/head surfaces; remove carbon and check flatness.
- Follow OE torque specs and sequence; replace hardware if corroded.
FAQ
Will this fit all 2001–2016 6.6L Duramax engines?
Yes—LB7, LLY, LBZ, LMM, and LML applications are covered.
Is this an MLS gasket?
Yes. The set uses multi-layer steel for durability under heat and pressure.
How many gaskets are included?
Two—one per bank for a full replacement.
Do I need new bolts or studs?
It’s recommended to replace aged hardware to ensure even clamping and long-term sealing.
