One New Aftermarket Replacement Track Adjuster Assembly for Caterpillar (Cat) Excavators
This track adjuster assembly (recoil tensioner) maintains proper track tension on Caterpillar compact and mid-size excavators, preventing track derailment and uneven wear on undercarriage components. The hydraulic adjuster fits into the front idler assembly and uses grease pressure to set and hold correct track tension during operation.
Specifications
- Overall Length: 12 in.
- Rod Diameter: 2 in.
- Quantity: 1 adjuster assembly
Compatible Models
Caterpillar (Cat) Excavators: 311, 311B, 312, 312B, 312B L, 313B, E110B, E120B
Replaces Part Number(s):
4I7338, 4I-7338
Aftermarket Interchange Numbers
UNU20-0003
New aftermarket replacement part – not remanufactured, not used.






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