A-4089648-AI Gasket Set; Upper (April, 2003>)

One New Aftermarket Replacement Upper Engine Gasket Set for Cummins B Series / QSB Engines (April 2003 and Later)

This upper engine gasket set is a direct aftermarket replacement for Cummins OEM part number 4089648. It covers the top-end of the engine and includes a head gasket along with top hat type valve seals, making it the correct kit for April 2003 and later production engines. The Cummins B Series 4-cylinder platform powers a wide range of agricultural, construction, and industrial equipment including tractors, excavators, skid steers, telehandlers, wood chippers, and generators.

Specifications

• Kit Type: Upper Engine Gasket Set
• Valve Seal Style: Top Hat Type
• Date Restriction: April 2003 and later production engines
• Engine Displacement: 3.9L (4BT) and 4.5L (QSB4.5)
• Cylinders: 4

Compatible Engines

Cummins B Series / QSB Engines (April 2003 and later): 4B 3.9, 4BT, 4BTA, 4BTAA, QSB 3.9, QSB 4.5, QSB4.5-99C (B4.5-99C), B4.5, B3.9-M250, QSB-110C

Used in agriculture and construction equipment including tractors, excavators, skid steers, telehandlers, wood chippers, air compressors, and generators. Verify engine serial number (ESN) to confirm fitment before ordering.

Replaces Part Number(s):

4089648, A-4089648-AI

Aftermarket Interchange Numbers

3804896, 3802016, 3802361, 3802240, 76193511, PAI 131602

New aftermarket replacement part - not remanufactured, not used.