Description
Compact & Search-Prioritized4089231 – Cummins QSK45 Quadrant Head Gasket Set4089231
The Cummins 4089231 Quadrant Head Gasket Set (also known as quadrant cylinder head gasket kit or upper head gasket set) is a genuine OEM specialized sealing package for Cummins high-horsepower QSK-series diesel engines. This “quadrant” design covers the cylinder head sealing quadrants (multi-piece head gasket system for large-bore engines). Includes quadrant head gaskets, intake/exhaust manifold gaskets, valve cover seals, O-rings, and related upper components. Prevents oil, coolant, and compression leaks during cylinder head repairs or top-end overhauls. Engineered with premium multi-layer steel, graphite, and composites for extreme durability in mining, power generation, marine, and heavy industrial environments.
Compatible Engines & Applications
- Cummins QSK Series: QSK45 (primarily), QSK60, QSK23/QSK78 (select applications)
- Common Applications: Massive mining haul trucks, large-scale generators, marine propulsion, heavy construction/industrial equipment, and power systems with high-displacement QSK engines
Key Specifications
| Specification | Details |
|---|---|
| Part Number | 4089231 (OEM; cross: 4376324 in some refs) |
| Type | Quadrant Head Gasket Set |
| Gross Weight | Approx. 5–10 kg |
| Material | Multi-layer steel, graphite, composites |
| Warranty | 6–12 months (OEM/aftermarket) / |
| Origin | Genuine Cummins OEM or certified aftermarket |
Benefits & Features
- Specialized quadrant design for large-bore QSK engines – precise multi-quadrant sealing
- Superior leak prevention & durability under extreme loads/temperatures
- Direct OEM replacement, professional installation typically 120–240 minutes
- Ideal for mining, power gen, and marine heavy-duty workshops
- Genuine quality in stock with fast worldwide shipping
Installation Tips
- Clean quadrant surfaces and mating areas thoroughly
- Follow Cummins torque sequence/specs for quadrant assembly
- Replace head bolts/studs if stretched; refresh fluids/filters
- Perform leak test and monitor during initial operation
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