Upper Gasket Kit 4089478 for Cummins Engine L10 M11 ISM QSM11 Hyundai R450LC-7

Cummins 4089478 is an upper engine gasket set for L10, M11, and ISM/QSM 11-liter engines manufactured in 1991 and later. It typically includes cylinder head gaskets, intake/exhaust manifold gaskets, valve cover gaskets, and various O-rings/seals.

Description

Key Specifications and Features

Part Number: 4089478 (often listed as DS-4089478 or M-4089478) Engine Compatibility: Cummins L10 (1991 STC and Celect), M11, ISM, and QSM11

Type: Upper Engine/Cylinder Head Gasket Set

Included Components:

Cylinder head gasket

Intake and exhaust manifold gaskets

Rockarm cover/valve cover gasket, turbocharger gasket and oil return gasket, various O-rings, washers, and seals

Replacements/Alternatives: DS-4024993, DS-4025157, DS-3803293