Home / Products / CAT 320D Undercarriage
Reference list · CAT 320DUndercarriage Parts for CAT 320D
A reference list of the undercarriage parts most frequently replaced on the CAT 320D, with typical specifications. Availability, MOQ and prices are confirmed upon inquiry — send us the part name or your machine's part number and we will match it.
| Part | Typical specification (reference) | Common wear point |
|---|---|---|
| Track Shoe Assembly | Width 600 mm, thickened steel plate | Wear and deformation on gravel ground |
| Track Link Assembly | Pitch 190 mm, overall quenching | Pin & bushing wear and elongation |
| Track Pin & Bushing | Wear-resistant components for track links | Core wearing parts of the undercarriage |
| Track Roller (bottom) | 10 pcs per side, thickened housing | Oil leakage and wear in muddy water |
| Carrier Roller (top) | 2 pcs per side | Bearing and seal damage |
| Front Idler | 1 set per side, with tension mechanism | Wheel body and bearing wear |
| Drive Sprocket | Tooth surface quenching | Tooth wear from continuous meshing |
| Track Adjuster Cylinder | Pressure resistance 20 MPa | Oil seal leakage, spring failure |
| Track Adjuster Spring | High-strength shock-absorbing spring | Fatigue and elasticity decline |
| Undercarriage Guard & Mud Flap | Steel protective plate | Deformation and cracking from impact |
Specifications shown are general references for this machine class, compiled from our sourcing experience. They are not a fitment guarantee — part numbers and dimensions must be confirmed against your machine before ordering.
Track chain assemblies — example of supplied undercarriage parts
Need a CAT 320D part?
Send the part name or the number cast on your old part — we confirm fitment and quote. Photos of the worn part also work.