Sprocket Bobcat 331 21T 12H 204mmID 355mmOD

Bobcat 331 Sprocket for Positive Drive and Long Undercarriage Life

Ensure strong, consistent track drive with heavy-duty excavator sprockets engineered to mesh precisely with your track links. Built for Australian construction, earthmoving, and civil works, these sprockets deliver reliable power transmission while helping to reduce wear on your tracks and final drive components.

Compatible Models:

Bobcat 328DBobcat 331

Compatible with a wide range of mini and mid-size excavator makes and models. Contact us if you need help confirming the correct sprocket for your machine.

Key Features

• Heavy-Duty Tooth Profile: Deep-hardened teeth made from high-quality cast or forged steel for maximum wear resistance in abrasive ground conditions and high-torque applications.
• Optimised Power Transmission: Precisely machined pitch to match your track links, delivering smooth engagement, reduced vibration, and efficient transfer of engine power to the ground.
• Improved Undercarriage Life: Even load distribution across the track chain helps minimise shock loading and reduces wear on tracks, rollers, and final drives.
• Durable Heat Treatment: Induction-hardened wear surfaces with tough core strength to resist chipping and breakage while maintaining long service life.
• Direct-Fit Replacement: Manufactured to OEM-style dimensions for straightforward installation on existing hubs or final drives using standard workshop tools.

Product Warranty

All excavator sprockets include a 1-year warranty covering manufacturing defects, giving you confidence in demanding Australian site conditions.

How to Confirm the Correct Sprocket

To ensure proper fitment, confirm your excavator’s make, model, and serial number, then check key sprocket details such as number of teeth, overall diameter, hub type, and bolt pattern against our specifications before ordering.

If you are unsure, contact us with photos of your existing sprocket (front and side) plus a clear image of the machine ID plate, and our team can help match the correct part.

Key sprocket specs: Number of teeth, Number of fixing holes, P.C.D(mm) and Inner Diameter(mm)

Why Choose Our Sprockets

• Backed by a 1-year warranty and stringent quality checks on hardness, fit, and tooth profile.
• Fast Australia-wide shipping to minimise downtime on site.
• Expert undercarriage support to help you pair sprockets correctly with your tracks and rollers.
• Competitive pricing across common mini and mid-size excavator models.

Maximise traction, protect your undercarriage, and keep your excavator working harder for longer with high-performance drive sprockets built for tough Australian worksites.