Product Description
OE-grade sealing for your 6.6L Duramax. The INDUSTRIAL INJECTION 54598 passenger-side (RH) multi-layer steel head gasket features the proven WaveStopper® design to maintain combustion sealing under varying load and boost. Ideal for stock refreshes and tuned builds alike.
Fitment
- 2001–2004 LB7 6.6L Duramax
- 2004.5–2005 LLY 6.6L Duramax
- 2006–2007.5 LBZ 6.6L Duramax
- 2007.5–2010 LMM 6.6L Duramax
- 2011–2016 LML 6.6L Duramax
Key Features
- Multi-Layer Steel (MLS) construction for stable long-term sealing
- WaveStopper® active layer adapts to pressure/temperature swings
- Right-hand (passenger side) gasket; sold individually
What’s Included
- (1) Passenger-side MLS head gasket (RH)
Recommended Parts (CPP internal links)
- Matching Driver-Side Gasket — Industrial Injection 54597 (LH)
- ARP 230-4201 Head Stud Kit (01–16 Duramax)
- MAHLE HS54580 Upper Head Set (2001–2004 LB7)
- MAHLE HS54580C Upper Head Set (2011–2016 LML)
- Browse All GM Duramax Gaskets & Seals
Cross-Reference / Alternatives
Helpful Notes
- Replace torque-to-yield factory head bolts; consider studs for higher boost.
- Verify thickness/grade per your block/heads and machine work; pair RH/LH accordingly.
FAQ
Is 54598 the passenger-side gasket?Yes. 54598 is the right-hand (passenger-side) head gasket for 2001–2016 6.6L Duramax engines. The matching left-hand (driver-side) gasket is 54597.
Do I need new head bolts or studs?Yes. Factory bolts are torque-to-yield. We recommend new bolts or an upgrade to ARP studs during any head gasket service.
Which head set should I use with this gasket?Use the upper head set that matches your engine generation—e.g., HS54580 (LB7) or HS54580C (LML)—for intake/exhaust, injector, and valve cover seals.
Is this suitable for tuned or high-boost trucks?The MLS construction and WaveStopper® design offer robust sealing. For elevated cylinder pressures, pair with ARP studs and verify surface finishes and RA specs.
