Product Description

Product Overview

Part Number: 9W-8705 Fit Machine: CAT D8N Crawler Bulldozer Material: High-strength alloy steel Technology: Casting + deep quenching heat treatment Surface Hardness: HRC50-56, hardened layer depth 4–10mm Warranty: 12-month global quality warranty Packing: Export wooden pallet packaging

This heavy-duty track roller (bottom roller) is aftermarket replacement undercarriage spare part designed for CAT D8N crawler bulldozer. It fully matches original OEM part 9W-8705, supports direct bolt-on installation without modification. It bears the machine weight and transmits load onto track chain, ensuring stable travel performance on tough ground.

Core Advantages

Premium cast alloy steel with outstanding impact and abrasion resistance, ideal for mining, quarry, heavy earthmoving harsh working environments. Deep quenching heat treatment craft, roller surface hardness reaches HRC50-56, hardened layer depth 4–10mm to reduce premature wear failure. Sealed lubrication structure, keeps grease inside to prevent oil leakage, extend service life and lower maintenance cost. Rigorous multi-stage quality inspection: hardness test, oil tightness test, rotary test before packaging delivery. MUYE Machinery factory direct production, sufficient inventory for bulk orders, 12-month global quality warranty for all customers.

Applicable Machine Models

CAT D8N Crawler Bulldozer Undercarriage System

Shipping & One-Stop Support Service

We provide full container and mixed undercarriage parts shipment worldwide. We also supply matching D8N track link, carrier roller, front idler, drive sprocket segments. Export wooden pallet packaging available. Contact our sales team for full set bulldozer undercarriage spare parts one-stop purchasing solution.