Product Description
Seal your Duramax the right way with the MAHLE 54582 Right Head Gasket — Grade C (1.05mm). This OE-quality MLS gasket uses Mahle’s CLL technology to maintain clamp load under boost and towing heat on 2001–2016 6.6L Duramax engines. Perfect for standard-bore builds and stock or mild performance.
Fitment
- Engines: 6.6L Duramax LB7 (2001–2004), LLY (2004.5–2005), LBZ (2006–2007), LMM (2008–2010), LML (2011–2016)
- Side/Bank: Right (passenger)
- Standard bore applications
Cross-Reference / Alternatives (Mahle only)
- Left-side Grade C (1.05mm): MAHLE 54585
- Right-side Wave-Stopper Grade C (1.05mm): MAHLE 54598
- Left-side Wave-Stopper Grade C (1.05mm): MAHLE 54597
- Right-side Grade B (1.00mm): MAHLE 54581
- Right-side Grade A (0.95mm): MAHLE 54580
- Complete head set (LB7): MAHLE HS54580
What’s Included
- Single right-side MLS head gasket (Grade C 1.05mm)
- Head bolts/studs not included
FAQ
Will this fit my Duramax?
Yes—fits LB7, LLY, LBZ, LMM, and LML 6.6L engines (2001–2016). Verify you need the right/passenger bank.
Is Grade C equal to 1.05mm?
Yes—Grade C corresponds to 1.05mm (~0.041").
Does it include head bolts?
No. Use new TTY bolts or upgrade to studs during service.
Is this an MLS design?
Yes—multi-layer steel with Mahle CLL technology for reliable sealing.
Specifications for Mahle 54582
| Attribute | Value |
|---|---|
| Brand | Mahle |
| Part Number | 54582 (Right) |
| Thickness / Grade | 1.05mm — Grade C |
| Material | MLS with CLL |
| UPC | 027067719874 |
| GTIN | 027067719874 |
| Bore | ≈105.4mm (standard bore) |
| Shipping | Calculated at checkout |
| Prop 65 | Not specified by manufacturer. See www.P65Warnings.ca.gov. |
