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551-2067
| Availability: | |
|---|---|
| Item | Specification |
|---|---|
| Part Number | 551-2067 (or 5512067) |
| Product Name | Double Flange Track Roller / Bottom Roller |
| Product Type | Undercarriage Component |
| Compatible Machine Models | Caterpillar D7, D7E, D7R, D7R LGP, D7R XR, D7T Dozers; 973, 973C, 973D, 973K Track Loaders |
| Roller Type | Double Flange (Bottom/Lower Track Roller) |
| Single Weight | 78.6 kgs (173.3 lbs) |
| Material | High-strength alloy steel with induction-hardened wear surface |
| Sealing Type | Floating / Duo-cone seals for contamination protection |
| Application | Supports machine weight and guides the track chain |
| Industry Focus | Construction, Land Clearing, Heavy Dozing, Mining Support |
Caterpillar 551-2067 track roller
D7R double flange roller
5512067 bottom roller
CAT 973 undercarriage parts
78.6 kg track roller for D7 dozer
Replacement bottom roller for D7R
Caterpillar dozer track roller
973C track loader roller
The Caterpillar 551-2067 Double Flange Track Roller is a genuine OEM-specification undercarriage component designed for Caterpillar D7 series dozers and 973 series track loaders. This double flange track roller (bottom roller) is a critical load-bearing component that supports the machine's weight and guides the track chain during operation.
The D7 series dozers and 973 series track loaders are used in construction, land clearing, heavy dozing, and mining support applications. The double flange design provides enhanced track guidance, keeping the track chain properly aligned during operation, which is especially beneficial for operations on side slopes and uneven terrain.
| Feature | Benefit |
|---|---|
| Double Flange Design | Enhanced track guidance keeps chain properly aligned |
| Induction-Hardened Tread Surface | Exceptional wear resistance in abrasive conditions |
| Floating / Duo-Cone Seals | Advanced sealing prevents contamination and retains lubrication |
| Precision Bearings | Smooth rotation with minimal friction for extended service life |
| Heavy-Duty Construction (78.6 kg) | Robust build for demanding applications |
| Multi-Model Compatibility | Fits D7 and 973 series machines |
| Factory Lubricated | Maintenance-free sealed design |
| Direct OEM Replacement | Guaranteed fit and performance |
| Machine Model | Type | Application |
|---|---|---|
| D7, D7E, D7R, D7R LGP, D7R XR, D7T | Dozer | Construction, dozing, land clearing |
| 973, 973C, 973D, 973K | Track Loader | Construction, material handling |
| Component | Part Number | Description |
|---|---|---|
| Single Flange Roller (D7) | 550-0278 | Single flange roller (69 kg) |
| Track Assembly (D7) | 422-1129 | Complete track assembly (1,960 kg) |
| Sprocket Segment (D7) | 314-5462 | Sprocket segment (13.5 kg) |
Position: This is a bottom/lower track roller - supports machine weight
Lifting Note: At 78.6 kg, proper lifting techniques and mechanical assistance are recommended
Bolt Torque: Follow Caterpillar OEM specifications for mounting bolt torque
Regular Inspection: Check for seal damage, bearing wear, and tread wear periodically
Lubrication: Factory-sealed; no field lubrication required
Replacement: Replace when tread wear exceeds OEM specifications or when seal failure occurs
| Condition | Action |
|---|---|
| New tread - smooth rotation | Normal operation |
| Moderate tread wear | Monitor regularly |
| Excessive tread wear (flat spots) | Replace roller |
| Seal leakage | Replace roller immediately |
| Bearing noise/play | Replace roller |
| Item | Detail |
|---|---|
| Part Number | 551-2067 / 5512067 |
| Type | Double Flange Track Roller (Bottom Roller) |
| Weight | 78.6 kg per piece |
| Compatibility | CAT D7 Series Dozers; 973 Series Track Loaders |
| Packaging | Individual crate |
Note: This is a double flange bottom track roller for Caterpillar D7 series dozers and 973 series track loaders. The double flange design provides enhanced track guidance for side slope and uneven terrain operations. Verify machine serial number and undercarriage configuration before ordering. Due to weight (78.6 kg), proper lifting techniques and mechanical assistance are recommended during installation.
