Product Description
Fix compression and coolant sealing issues the right way with the MAHLE 54583 Left Cylinder Head Gasket (Grade A 0.95mm) for the 2001–2016 GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML). This OE-quality multi-layer steel (MLS) gasket delivers precise combustion sealing and durability on stock and tuned trucks alike.
Fitment
- 2001–2016 Chevrolet/GMC 2500HD/3500HD — 6.6L Duramax LB7, LLY, LBZ, LMM, LML (Left/Driver side)
Cross-Reference / Alternatives (Mahle only)
- Right/Passenger — Grade A 0.95mm: MAHLE 54580
- Left/Driver — Grade B 1.00mm: MAHLE 54584
- Left/Driver — Grade C 1.05mm: MAHLE 54585
What’s Included
- (1) Left-side MLS cylinder head gasket (Grade A, 0.95mm). Head bolts/studs not included.
Key Details
- Material: Multi-Layer Steel (MLS)
- Thickness: 0.95mm (Grade A)
- Bore: 105.4mm (standard bore)
FAQ
Will this fit my Duramax?
Yes. It fits 2001–2016 6.6L Duramax LB7/LLY/LBZ/LMM/LML on the left (driver) side.
Is this the standard-bore gasket?
Yes. It’s designed for standard bore (105.4mm) applications.
Do I need new head bolts or studs?
We recommend new TTY bolts or an upgrade to studs during reassembly (not included).
Which thickness grade should I choose?
Duramax engines use side-specific gaskets and grade-specific thicknesses. Confirm piston protrusion or OE grade marking before ordering.
Specifications for Mahle 54583
| Attribute | Value |
|---|---|
| Brand | Mahle |
| Part Number | 54583 (Left, Grade A) |
| Material | MLS (Multi-Layer Steel) |
| Thickness | 0.95mm |
| Bore | 105.4mm (standard) |
| Engine Compatibility | 2001–2016 GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML) |
| UPC | 027067719898 |
| GTIN | 027067719898 |
| Shipping | Calculated at checkout |
| Prop 65 | Not specified by manufacturer. See www.P65Warnings.ca.gov. |
