Victor 4906 Nitroseal Expanded Graphite Cylinder Head Gasket

The Victor Reinz 4906 is an OE-replacement cylinder head gasket constructed using Victor Reinz's patented Nitroseal® expanded graphite technology. A graphite facing material is clinched to a perforated steel core, producing a gasket that delivers optimum macro and micro sealing performance across demanding engine environments.

Nitroseal expanded graphite gaskets are commonly original equipment on bi-metal engines, accommodating head motion caused by thermal expansion differences between cast iron engine blocks and aluminum cylinder heads. The expanded graphite construction seals effectively over a wide range of surface finishes, making it an excellent choice for both new installations and engine rebuilds.

Key Features:

• Nitroseal® expanded graphite construction — graphite facing material clinched to a perforated steel core for a durable, conformable seal
• Extreme heat resistance — withstands temperatures up to 1,800°F
• Broad fluid compatibility — resists coolants, lubricants, and fuels to prevent leaks
• OE-quality fit — direct OEM replacement engineered to restore factory sealing performance
• Handles high-combustion pressures — built to withstand the demanding pressure cycles inside modern and classic engines
• Wide surface finish tolerance — seals reliably even on less-than-ideal machined surfaces
• Sold individually

Victor Reinz, a brand of Dana Incorporated, has been supplying gaskets to original equipment manufacturers and the aftermarket since 1909. The 4906 meets or exceeds OE specifications for a confident, lasting repair.