207-30-74142 Spring Recoil Fits Komatsu Models

One New Aftermarket Replacement Spring Recoil for Komatsu Excavators

This recoil spring (track adjuster spring) is part of the front idler cushion assembly in the undercarriage system of Komatsu excavators. It functions as a heavy-duty shock absorber, maintaining proper track tension and protecting the front idler, track chain, and undercarriage components from impact and overload during operation. The spring works in conjunction with the track adjuster cylinder to allow the idler to float forward and back as the track encounters obstacles, extending the service life of the entire undercarriage.

Specifications

• Weight: approximately 145 kg (317 lbs.)
• Part of the Front Idler Cushion / Track Adjuster Assembly
• Undercarriage system component

Compatible Models

Komatsu PC-Series Excavators: PC220LL-7L, PC240LL-10, PC270-7, PC270-7-AG, PC270-8, PC270LC-7, PC270LC-8, PC290, PC290LC-10, PC290LL-11, PC300, PC300-7, PC300-7E0, PC300-8, PC300-8M0, PC300LC-7, PC300LC-7E0, PC300LC-7L, PC300LC-8, PC300LC-8M0, PC308USLC-3E0, PC340, PC350, PC350-7, PC350-8, PC350-8M0, PC350LC-8, PC350LC-8M0, PC360, PC360-7, PC360LC-7

Komatsu Mobile Crushers and Recyclers: BR550JG-1, BR580JG-1

Komatsu Forestry / Specialty: 430FX-1, 430FXL-1, XT430

Replaces Part Number(s):

207-30-74142, 2073074142

Aftermarket Interchange Numbers

207-30-00460, 207-30-74141, 2073074141

New aftermarket replacement part - not remanufactured, not used.