Description
4012662 High-Performance Sealing Kit for Cummins QSV Series
The 4012662 Cylinder Head Gasket Set is a specialized sealing solution designed for the demanding environment of Cummins QSV81 and QSV91 gas engines. As a critical component of the upper engine overhaul, it ensures a perfect gas-tight seal between the cylinder head and the block, maintaining optimal combustion pressure and protecting your engine from internal fluid cross-contamination.
Technical Specifications
| Feature | Details |
| Part Number | 4012662 |
| Brand | Cummins |
| Engine Compatibility | QSV81 / QSV91 Gas Engines |
| Material | Multi-Layer Steel (MLS) / High-Temp Composites |
| Package Includes | Cylinder Head Gasket and Essential Upper Seals |
| Weight | Standard OEM weight for QSV series |
Our Advantages & Product Value
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OEM Standard Precision: Manufactured to the exact tolerances of the 4012662 specification, ensuring a 100% “first-time” fit.
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Enhanced Thermal Stability: Specifically treated to endure the higher operating temperatures of lean-burn gas engines compared to standard diesel units.
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Long-Term Reliability: Reduces the risk of “blown gaskets,” significantly lowering long-term maintenance costs and unplanned downtime.
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Global Shipping: Fast and secure logistics to ensure your power generation equipment returns to service quickly.
Usage & Installation Guidelines
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Surface Inspection: Thoroughly clean the engine block and cylinder head surfaces. Ensure there are no scratches or warped areas.
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Proper Orientation: Identify the “Top” marking on the 4012662 gasket to ensure correct placement relative to the oil and coolant passages.
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Torque Settings: Tighten the cylinder head bolts in the sequence specified by the Cummins QSV81/91 service manual.
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Final Check: After installation, perform a pressure test to confirm the integrity of the seal before full engine startup.
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