1989-1998 Cummins 5.9L Head Gasket Set 0.25MM (HS4068A) 1987 2001-2004 Duramax LB7 PML Reman

2001-2004 Duramax LB7 PML Reman Cylinder Head Set of 2 (CH66D-LB7-01-04)

The system can also negatively impact performance

and larger valve sizes exceed a single spring’s capabilities

DOD Tower Plugs

9L Hamilton Cams Over Sized Valves (07-h-002)

1989-1998 Cummins 5.9L Head Gasket Set 0.25MM (HS4068A) 1987 2001-2004 Duramax LB7 PML Reman1989 1998 Cummins 5. 9L Head Gasket Set 0. 25MM (HS4068A) The Mahle HS4068A Gasket set takes the hassle out of sourcing individual gaskets when replacing your headgasket on your 5. 9L Cummins. Mahle offers OE specifications and fitment and is a direct replacement of all your OE Gaskets and Seals.