ZX870 SPROCKET PART NO.:4430291
Product Overview
Part Number: 4430291
Fit Equipment: Hitachi ZX870 Large Heavy Mining Excavator
This drive sprocket is a heavy-duty aftermarket replacement undercarriage wear part designed for Hitachi ZX870 heavy mining excavators. It is manufactured from high-strength alloy steel with full-tooth carburizing quenching heat treatment, delivering outstanding wear resistance and impact resistance. The sprocket meshes seamlessly with matched track chains and maintains stable driving performance under severe working environments of open-pit mines and heavy construction projects.
Core Advantages
Precision Machined Replacement Installation Dimensions
The tooth profile, inner bore and mounting hole dimensions are precisely machined to perfectly fit Hitachi ZX870 excavators. Direct bolt-on installation is available without cutting or secondary modification.
Deep Hardened Gear Teeth
High-hardness tooth surface greatly extends service life on rocky and muddy mining operation sites.
High Toughness Thick Steel Body
Resists cracking and permanent deformation under continuous heavy-load mining excavation cycles.
Precision CNC Machined Teeth
Enables smooth meshing with track links to lower track abrasion and effectively avoid track jumping and derailment.
Strict Pre-Shipment Full Inspection
Each sprocket undergoes hardness testing and dimensional calibration before packaging to guarantee consistent uniform quality.
Compatible Machine
This aftermarket replacement sprocket perfectly fits Hitachi ZX870 crawler mining excavator.
If you cannot confirm compatibility, send your machine model and photos of your original old sprocket to our sales team for fast professional verification.
Application
Replacement drive sprocket for Hitachi ZX870 large mining excavators, widely deployed in quarry mining, bulk earthmoving and heavy engineering machinery chassis drive systems.
Packing & Delivery
Adopt shockproof export wooden cases and fumigated wooden pallets as outer packaging for long-distance sea and air international transit.
We support bulk wholesale orders, mixed undercarriage spare parts orders, fast production lead time and global door-to-door logistics delivery service.
Why Choose MUYE Aftermarket Undercarriage Parts
MUYE Machinery has specialized in aftermarket excavator chassis spare parts for over 10 years:
- Complete product lineup covering sprockets, track rollers, top rollers, idlers and track shoes compatible with Hitachi, Sany, Volvo, Komatsu, CAT and other mainstream construction machinery brands
- Direct factory supply with competitive wholesale prices, no extra markup from middle distributors
- 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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