Product Overview
The Track Roller — also called Bottom Roller or Lower Roller — is the load-bearing roller mounted under the track frame of the D6D bulldozer. It supports the full machine weight, keeps the track chain aligned, and transfers the load evenly to the ground. A worn or seized track roller causes track misalignment, accelerated wear on the chain and sprocket, and expensive downtime. Our rollers are engineered specifically for the Caterpillar D6D undercarriage family, covering D6D, D6D SR and cross-compatible D6E models for a direct, bolt-on replacement.
Key Features & Benefits
Technical Specifications
| Item | Specification / Detail |
|---|---|
| Machine Model | Caterpillar D6D / D6D SR / D6E Bulldozer |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Numbers | 7G-0423 / 118-1618 / 120-5766 (DF); 118-1620 / 118-1614 (SF) |
| Cross Reference Numbers | CR6089 / CR1793 |
| Flange Type | Double Flange (DF) |
| Material | High-strength Alloy Steel (35SiMn / 40Mn2) |
| Surface Hardness | HRC 50-56 |
| Hardening Depth | 5mm - 10mm |
| Sealing | Heavy-duty floating oil seal, lifetime lubricated |
| Weight | Approx. 59.5kg (DF) per piece |
| Mounting | OEM standard, bolt-on direct replacement |
Why Trust Our Undercarriage Solutions?
For a heavy bulldozer like the D6D, every track roller carries a significant share of the machine's total weight — a failed roller means track misalignment, extra wear on the entire undercarriage and expensive downtime. Every roller we produce is 100% inspected for hardness, dimensional accuracy and sealing quality before shipment. Our goal is to deliver genuine-compatible durability at a more competitive price, backed by a clear warranty. Contact us with your machine serial number, current part number and position (DF) to confirm the correct fitment.
Product Overview
The Track Roller — also called Bottom Roller or Lower Roller — is the load-bearing roller mounted under the track frame of the D6D bulldozer. It supports the full machine weight, keeps the track chain aligned, and transfers the load evenly to the ground. A worn or seized track roller causes track misalignment, accelerated wear on the chain and sprocket, and expensive downtime. Our rollers are engineered specifically for the Caterpillar D6D undercarriage family, covering D6D, D6D SR and cross-compatible D6E models for a direct, bolt-on replacement.
Key Features & Benefits
Technical Specifications
| Item | Specification / Detail |
|---|---|
| Machine Model | Caterpillar D6D / D6D SR / D6E Bulldozer |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Numbers | 7G-0423 / 118-1618 / 120-5766 (DF); 118-1620 / 118-1614 (SF) |
| Cross Reference Numbers | CR6089 / CR1793 |
| Flange Type | Double Flange (DF) |
| Material | High-strength Alloy Steel (35SiMn / 40Mn2) |
| Surface Hardness | HRC 50-56 |
| Hardening Depth | 5mm - 10mm |
| Sealing | Heavy-duty floating oil seal, lifetime lubricated |
| Weight | Approx. 59.5kg (DF) per piece |
| Mounting | OEM standard, bolt-on direct replacement |
Why Trust Our Undercarriage Solutions?
For a heavy bulldozer like the D6D, every track roller carries a significant share of the machine's total weight — a failed roller means track misalignment, extra wear on the entire undercarriage and expensive downtime. Every roller we produce is 100% inspected for hardness, dimensional accuracy and sealing quality before shipment. Our goal is to deliver genuine-compatible durability at a more competitive price, backed by a clear warranty. Contact us with your machine serial number, current part number and position (DF) to confirm the correct fitment.
