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Cummins 5267807 Piston Pin

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Part Type	Piston Pin (Wrist Pin)
Material	Forged Alloy Steel
Manufacturing Process	Precision Forging
Surface Treatment	Case Hardened / Nitrided
Compatible Engine Series	Cummins ISL / QSL 8.9L - 9.5L
Certification	ISO 9001, IATF 16949
Net Weight	1.8 kg
Package Dimensions	18 × 6 × 6 cm

Manufacturer No.

5267807
C5267807

OEM Part No.

5267807
3950549

Engine Part No.

Cummins ISL9.5
Cummins ISL9.3
Cummins QSL8.9
Cummins ISLe
Cummins 6LTAA9.5
Cummins 6CT
Cummins ISC
Cummins QSC
Cummins QSL

Fitment Vehicles

Hyundai HX330L
Hyundai HX380L
Hyundai HX430L
Liugong CLG856

The Cummins 5267807 piston pin is a critical internal engine component connecting the piston to the connecting rod. Manufactured via precision forging from high-grade alloy steel, it is engineered to withstand extreme thermal and mechanical loads in heavy-duty diesel applications. The pin features a case-hardened surface finish to ensure low friction coefficients and superior wear resistance throughout the engine service interval.

This component is designed for the Cummins ISL and QSL 8.9L and 9.5L engine families, including ISL9.5, ISL9.3, QSL8.9, ISLe, 6LTAA9.5, 6CT, ISC, QSC, and QSL models. It meets OEM specifications for dimensional accuracy, metallurgical integrity, and surface finish. Certified under ISO 9001 and IATF 16949 quality management systems. Supersedes or cross-references Cummins part number 3950549.