Bottom Track Roller Hitachi Zx55U ZX48U ZX40U Komatsu PC40MR Pc50Mr PC45MR PC55MR

Keep your excavator tracking straight and working safely with heavy-duty bottom (track) rollers engineered to carry the full machine weight and support the lower section of the rubber track. The Bottom Track Roller Zx55U ZX48U PC40MR Pc50Mr is designed for Australian construction, landscaping, and civil works, helping to 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.

Specifications

Attribute	Details
Type	Bottom Track Roller (Track Roller)
Application	Mini Excavators
Construction	Forged steel body, high-strength shaft
Hardening	Induction-hardened tread and flanges
Lubrication	Oil-filled, sealed design
Seals	Multi-lip seals
Warranty	1-year undercarriage parts warranty

Machine Compatibility List

This Bottom Track Roller Zx55U ZX48U PC40MR Pc50Mr is compatible with the following machines:

• Hitachi Zx40U 2
• Hitachi Zx40U 3
• Hitachi Zx48U 5
• Hitachi Zx50U 2
• Hitachi Zx50U 3
• Hitachi Zx52U 3
• Hitachi Zx55U 5A
• Hitachi Zx55Ur 2
• Hitachi Zx55Ur 3
• Jcb 8040 Zts
• Jcb 8045 Zts
• Jcb 8050 Zts
• Komatsu Pc40Mr 1
• Komatsu Pc40Mr 2
• Komatsu Pc40Mr 3
• Komatsu Pc40Mrx
• Komatsu Pc40R 8
• Komatsu Pc45Mr 2
• Komatsu Pc45Mr 3
• Komatsu Pc45Mr 5
• Komatsu Pc45Mrx
• Komatsu Pc45R 8
• Komatsu Pc50Mr 2
• Komatsu Pc50Mr 3
• Komatsu Pc55Mr 3
• Komatsu Pc55Mr 5
• Komatsu Pc58Mr 5
• Komatsu Pc58Uu 3

Compatible with a wide range of mini excavator makes and models. Contact us if you need help confirming the correct Bottom Track Roller for your machine.

Product Warranty

All excavator Bottom Track Rollers include a 1-year warranty, covering manufacturing defects to give you confidence and peace of mind on every job.

How to Confirm the Correct Bottom Track Roller

To ensure proper fitment, confirm your excavator’s make, model, and serial number, and where possible measure your existing Bottom Track 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 Track Rollers installed on the track frame, plus a photo of your machine ID plate, and we can help match the correct part.

Why Choose Our Bottom Track Rollers

• 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 Track Roller.
• Competitive pricing across popular mini excavator makes and models.

Protect your tracks, reduce downtime, and keep your excavator working harder for longer with durable, reliable Bottom Track Rollers built for tough Australian worksites. Order your Bottom Track Roller Zx55U ZX48U PC40MR Pc50Mr today and experience the Big Power Parts difference.