Product Description
| Material | 50mn,40mn2 |
| Part No. | KM388,ITM A4031000M00, 111-30-00130, 111-30-00140, 111-30-00270, 111-30-00271, 111-30-00272, 111-30-00273, 111-30-00274, 113-30-00130, 203-30-00020,VPI VKM388V |
| 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 |
D31 BOTTOM ROLLER DF PART NO.:113-30-00010
Product Overview
Part Number: 113-30-00010
Fit Machine: Komatsu D31 DF Mini Crawler Bulldozer
This track roller (bottom roller) is a wear-resistant aftermarket replacement undercarriage spare part designed for Komatsu D31 DF light bulldozers. Forged from high-strength alloy steel with full surface deep carburizing quenching heat treatment, it is equipped with a double-layer anti-mud leak-proof oil seal system. The roller bears the full weight of the bulldozer and supports smooth track chain movement for landscaping, farm land leveling and small municipal road construction.
Core Advantages
Precision Machined Replacement Installation Dimensions
Roller width, spindle length and mounting hole sizes are precisely machined to fit Komatsu D31 DF bulldozers seamlessly. Direct bolt-on installation is available without cutting or any modification.
Deep Hardened Roller Surface
Deep carburizing quenching significantly boosts surface hardness, delivering outstanding wear resistance and extended service life on muddy and rocky construction sites.
Double Multi-Layer Mud-Proof Oil Seal
High temperature resistant composite rubber seals block sediment and water ingress, effectively prevent grease leakage and lengthen maintenance intervals.
Heavy-Duty Internal Bearing
Boasts powerful load-bearing capacity and stable smooth rotation, preventing track shaking, jumping and chain derailment during daily light-load pushing work.
Strict Factory 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 roller fits Komatsu D31 DF mini crawler bulldozer 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 Komatsu D31 DF small bulldozers, widely used in garden renovation, farm land grading and residential small road repair machinery chassis load-bearing systems.
Packing & Delivery
Adopt shockproof export wooden cases and fumigated wooden pallets for outer packaging.
We support bulk wholesale orders, mixed full-set bulldozer undercarriage spare parts, fast mass production lead time and global door-to-door logistics service.
Why Choose MUYE Aftermarket Undercarriage Parts
MUYE Machinery has specialized in aftermarket mini & heavy bulldozer and excavator chassis spare parts for over 10 years:
- Complete product lineup including track roller, top roller, idler, sprocket, segment and track shoe compatible with Komatsu, CAT, Doosan, Hitachi, 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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