Federal-Mogul Motorparts’ Fel-Pro Gaskets brand has introduced two PermaTorque MLS head gaskets that address a common combustion sealing issue encountered in 6.0L diesel engines used in more than 700,000 trucks manufactured between 2003 and 2010.
The patent-pending PermaTorque MLS head gaskets (No. 26374PT – 18mm dowel applications; 26375PT – 20mm dowel applications) are now available through Fel-Pro distributors.
The company says many owners of trucks equipped with Powerstroke 6.0L diesel engines have encountered premature head gasket failures and resulting engine damage caused by leakage of combustion gasses into the cooling system. The engines, originally equipped with multi-layer-steel head gaskets, have been known to experience combustion leakage at as early as 50,000 miles of service under heavy loads.
“These engines generate a great deal of power, heat and combustion pressure and are being run in vehicles seeing heavy use, which can exceed the sealing capabilities of conventional, OE-style MLS head gaskets,” says Jim Daigle, product manager, sealing, Federal-Mogul Motorparts.
The new Fel-Pro PermaTorque MLS multi-layer-steel head gaskets address combustion leakage and other issues encountered in these existing engines, according to the company.
The gaskets include a highly advanced new embossment design that creates increased spring force and significantly more robust sealing contact than conventional gasket designs under extreme loads.
The new gaskets also have a highly controlled thickness of proprietary FKM rubber in all critical sealing areas. Each gasket is engineered to accommodate engine overbore.
The new Fel-Pro gaskets provided leak-free performance in dynamometer tests used for 6.0L engines in 2003 to 2010 diesel trucks.
The new gaskets also help customers address premature push rod wear and resulting oil contamination caused by undersized push rod guide holes in the OE gaskets.
Federal-Mogul Motorparts engineers developed patent-pending oversize guide holes surrounded by a non-abrasive material in potential contact areas.
Fel-Pro Gaskets are manufactured by Federal-Mogul Motorparts, a division of Federal-Mogul Holdings Corporation (FDML).