Piston 6240-31-2111 4095489 for Qsk23 Generator PC1250-7 HD465-7 Engine SAA6d170e-3 - Komatsu Caterpillar Hitachi Kobelco Excavator Parts

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The Piston 6240-31-2111 (cross-reference: 4095489) is engineered for SAA6d170e-3 engines powering Komatsu PC1250-7 excavators, Caterpillar Qsk23 generators, and HD465-7 dump trucks. This precision component ensures optimal compression and durability in Hitachi ZX200 Kobelco SK350 excavators. Manufactured to ISO 9001 standards with thermal-resistant alloys.

High-performance Piston 6240-31-2111 (4095489) for SAA6d170e-3 engines in Komatsu PC1250-7 excavators, Caterpillar Qsk23 generators, and HD465-7 trucks. OEM-quality pistons compatible with Hitachi Kobelco excavators. Global shipping.

Premium Pistons for Heavy-Duty Engines

The Piston 6240-31-2111 (also coded 4095489) is a critical component for SAA6d170e-3 engines, delivering unmatched reliability in demanding equipment such as:

Komatsu excavators: PC1250-7 hydraulic excavators 46
Caterpillar generators: Qsk23 power generation units
Dump trucks: Komatsu HD465-7 off-highway haulers 3
Hitachi/Kobelco excavators: ZX200 and SK350 models 26

Designed to withstand extreme combustion pressures (up to 1600 bar), this piston features a reinforced skirt and micro-groove oil retention for reduced friction and extended engine life.

Technical Specifications

Parameter	Specification
Part Number	6240-31-2111 / 4095489
Engine Model	SAA6d170e-3 (aligned with SA6D170-3A) 1
Compatibility	Qsk23 generators, PC1250-7 excavators, HD465-7 trucks
Material	High-silicon aluminum alloy (T6 heat-treated)
Coating	Molybdenum-disulfide skirt coating
Certification	ISO 9001, RoHS compliant 6

Cross-Brand Compatibility

This piston integrates seamlessly with:

Komatsu: PC1250-7 excavators, HD465-7 mining trucks 4
Caterpillar: Qsk23 generator engines
Hitachi: ZX200 excavator engines 26
Kobelco: SK350 hydraulic excavators 6
Hyundai: R320LC-7 excavators (via shared OEM standards) 6

Performance Advantages

Thermal Management: Optimized cooling channels prevent deformation under high loads in SAA6d170e-3 engines.
Fuel Efficiency: Precision-tolerance design reduces blow-by, improving combustion in PC1250-7 excavators and HD465-7 trucks 3.
Durability: Hard-anodized crown resists cavitation in Qsk23 generators operating >10,000 hours.
Easy Installation: Matches OEM SAA6d170e-3 engine block specs (bore: 107mm, stroke: 124mm) 13.

Quality Assurance

Testing: 100% pressure testing (200+ bar hydraulic validation) 3
Warranty: 12-month performance guarantee
Global Logistics: FOB/CIF shipping with customs documentation