Cummins Cylinder Head Gasket 3978517 2003-2007 5.9L
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$535.00 USD
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The Genuine Cummins Cylinder Marine Head Gasket 3978517 is used primarily on Tier 3 5.9 liter ISB/QSB engines. For your 2003-2007 Cummins 5.9L.
The Cummins 3978517 is a genuine OEM Multi-Layer Steel (MLS) head gasket designed for 2003–2007 Cummins 5.9L Common Rail ISB and QSB marine/industrial engines. Often referred to as a "marine grade" or .020" oversize gasket, it is frequently used to compensate for cylinder head or block machining during rebuilds.