Bottom Roller CAT 315 317 320C 320D 163-4144
In Stock (Melbourne)
|Dispatches Same Day (Order before 11AM)
Onsite bottom roller replacement service available (selected areas) Backed by a 1-year undercarriage parts warranty Fast shipping across all of Australia Free consultation with an undercarriage specialist
Keep your excavator tracking straight and working safely with heavy-duty Bottom Roller CAT 315 317 320C 320D engineered to carry the full machine weight and support the lower section of the track. Designed for Australian construction, landscaping, and civil works, these rollers help minimise undercarriage wear, reduce vibration, and improve machine stability on rough ground.
Key Features
- Heavy-Duty Load Bearing: Robust forged steel roller body and high-strength shaft designed to support full machine weight and absorb dynamic impact loads.
- Hardened Wear Surfaces: Induction-hardened tread and flanges to resist abrasion from rocks, dirt, and debris, extending roller and track life.
- Oil-Filled, Sealed Design: Internal bearings run in oil with multi-lip seals to retain lubrication and keep dust, mud, and water out for long service intervals.
- Straight, Stable Tracking: Supports and guides the lower track to reduce derailment risk, improve operator comfort, and minimise stress on sprockets and idlers.
- Low Maintenance: Maintenance-free sealed unit—no daily greasing required, only periodic visual checks as part of your undercarriage inspection.
- Direct-Fit Replacement: Built to OEM-style dimensions for fast bolt-on replacement using standard workshop tools.
Machine Compatibility List
- Caterpillar 315
- Caterpillar 315 GC
- Caterpillar 315B
- Caterpillar 315B L
- Caterpillar 315C
- Caterpillar 315C L
- Caterpillar 315D L
- Caterpillar 315GC
- Caterpillar 316E L
- Caterpillar 317
- Caterpillar 317B
- Caterpillar 317B L
- Caterpillar 318B
- Caterpillar 318BN
- Caterpillar 318C
- Caterpillar 318C L
- Caterpillar 319D
- Caterpillar 320
- Caterpillar 320 L
- Caterpillar 320B
- Caterpillar 320B L
- Caterpillar 320B LL
- Caterpillar 320BN
- Caterpillar 320BU
- Caterpillar 320C
- Caterpillar 320C L
- Caterpillar 320D
- Caterpillar 320D L
- Caterpillar 320D LRR
- Caterpillar 320D RR
- Caterpillar 320E
- Caterpillar 320E L
- Caterpillar 321B
- Caterpillar 321C
- Caterpillar 321D
- Caterpillar 323D
- Caterpillar 323D L
- Caterpillar 323D LN
- Caterpillar 323F L
- Caterpillar 325F LCR
Technical Specifications
| Attribute | Details |
|---|---|
| Part Number | 163-4144 |
| Material | Forged steel with induction-hardened wear surfaces |
| Design | Oil-filled, sealed, maintenance-free |
| Warranty | 1-year warranty covering manufacturing defects |
How to Confirm the Correct Bottom Roller
To ensure proper fitment, confirm your excavator’s make, model, and serial number, and where possible measure your existing bottom roller (overall length, flange-to-flange distance, body diameter, and shaft diameter) and compare with our specifications before ordering. If you are unsure, contact us with photos of your current bottom rollers installed on the track frame, plus a photo of your machine ID plate, and we can help match the correct part.
Backed by a 1-year warranty and strict quality control on every production batch. Fast Australia-wide shipping and responsive after-sales support. Expert guidance from undercarriage specialists to help you select the right Bottom Roller CAT 315 317 320C 320D. Protect your tracks, reduce downtime, and keep your excavator working harder for longer with durable, reliable bottom rollers built for tough Australian worksites.
