Product Description
| Material | 50mn,40mn2 |
| Part No. | CR5109, CR5572, CR6676, 117-5045, 163-4143, 1R8669, 209-3386, 286-9823, 348-1867, 8E5034, 964289, 965893, 991109, 993597,INGERSOLL RAND 5770490 |
| Finish | Smooth |
| Colors | Black, yellow, or customized |
| Technology | Forging/Casting |
| Surface Hardness | HRC55-60,depth: 8mm-12mm |
| Warranty time | 12 Months |
| Delivery Time | 25-30 days |
E320 BOTTOM ROLLER PART NO.:163-4143
Product Overview
Part Number: 163-4143
Fit Machine: Caterpillar E320 Medium Excavator
This track roller (bottom roller) is a heavy-duty aftermarket replacement undercarriage wear part designed for CAT E320 crawler excavators. Forged from high-strength alloy steel with full-surface deep carburizing quenching heat treatment, it is fitted with a triple-layer anti-leak oil seal system. The roller bears the full weight of the excavator and supports track chain operation under harsh working environments including stone quarries, mining sites and heavy earthmoving projects.
Core Advantages
Precision Machined Replacement Installation Dimensions
Roller width, spindle length and mounting hole sizes are precisely machined to fit Caterpillar E320 excavators seamlessly. Direct bolt-on installation is available without cutting or any modification.
Ultra Deep Hardened Roller Surface
Deep carburizing quenching achieves high surface hardness and superior wear resistance, significantly extending service life on rocky and muddy job sites.
Triple Multi-Layer Mud-Proof Oil Seal
High-temperature and sediment-resistant composite rubber seals block water and mud ingress, prevent grease leakage and greatly prolong maintenance intervals.
Oversized Heavy-Duty Internal Bearing
Delivers exceptional load-bearing capacity and smooth steady rotation to avoid track shaking, jumping and chain derailment.
Strict Factory Full Inspection
Each bottom roller undergoes hardness testing, hydraulic leak testing and dimensional calibration before packaging to guarantee consistent uniform quality.
Compatible Equipment
This aftermarket replacement track roller fits Caterpillar E320 crawler excavator perfectly.
If you cannot confirm compatibility, send your machine model and photos of your old track roller to our sales team for fast professional matching.
Application
Load-bearing replacement bottom track roller for CAT E320 excavators, widely used in open-pit quarries, large earthmoving works and road construction machinery chassis load-bearing systems.
Packing & Shipping
Adopt shockproof export wooden cases and fumigated wooden pallets for outer packaging.
We support bulk wholesale orders, mixed full-set undercarriage spare parts orders, fast mass production lead time and global door-to-door logistics service.
Why Choose MUYE Aftermarket Undercarriage Parts
MUYE Machinery has specialized in aftermarket medium & mining heavy excavator chassis spare parts for over 10 years:
- Complete product lineup including track rollers, top rollers, idlers, sprockets and track shoes compatible with Caterpillar, Komatsu, Hitachi, Kobelco, Volvo and more brands
- Direct factory supply with competitive wholesale prices, no extra markup from middlemen
- All aftermarket undercarriage wear parts are covered by a 12-month quality warranty
- Professional technical team provides accurate model matching and installation guidance
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