4089687 | Genuine Cummins® Air Compressor Head Repair Kit

Description and Purpose:

The Cummins Air Compressor Head Repair Kit, Part Number: 4089687, is a OEM solution designed to service and reseal the air compressor head on EPA02 QSB6.7, ISB6.7, and QSB4.5 engines. Condition: New. This kit provides the critical components necessary to restore air compression performance without full compressor replacement. It ensures dependable air delivery for systems such as suspension, brakes, and emissions management in heavy-duty diesel applications.

Why Replacement is Important:

Air compressors with worn head components can suffer from low output or system pressure faults. Installing this repair kit helps prevent air system inefficiencies and extends compressor life before a full replacement becomes necessary.

Impact on Engine Performance:

Restoring the compressor’s internal sealing helps maintain steady air supply for key engine functions—preserving vehicle control, brake power, and overall system responsiveness in commercial diesel engines.

Manufacturer Information:

Cummins® designs engines and components that deliver consistent power, extended service intervals, and reduced fuel consumption.

Tags & Category: Air Compressor Parts, Air Compressor Head, Compressor Repair Kit, QSB6.7 Parts, ISB6.7 Parts, QSB4.5 Parts, Cummins Engine Components, Heavy Duty Engine Parts, Diesel Engine Accessories

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The -warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.