This Valve Cover Gasket & Rocker Box Gasket Kit is designed to fit Cummins ISD4.5L, ISB3.9L, and QSB4.5L engines. The kit includes two gaskets, with OE/OEM part numbers 4899228 and 4899230, and is sold as a set. The gaskets are made for durability and are a reliable replacement for your engine's needs.

PN NAME QTY
4899228 Valve Cover Gasket 1
5271613 Noise Isolator 4
4899230 Rocker Lever Housing Gasket 1

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