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| Item | Specification |
|---|---|
| Part Number | 6031609 |
| Alternative Part Number | 603-1609 |
| Product Name | Track Roller / Bottom Roller |
| Product Type | Undercarriage Component |
| Compatible Machine Models | SEM 816D Bulldozer / Tractor |
| Roller Type | Single Flange (Bottom/Lower Track Roller) |
| Single Weight | 53 kgs (116.8 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, Earthmoving, Land Clearing, Mining Support |
SEM 6031609 track roller
816D single flange roller
603-1609 bottom roller
SEM 816D undercarriage parts
53 kg track roller for SEM 816D dozer
Replacement bottom roller for SEM 816D
SEM bulldozer single flange track roller
816D lower track roller
The SEM 6031609 Track Roller (Single Flange) is a genuine OEM-specification undercarriage component designed for the SEM 816D bulldozer/tractor. This single 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 SEM 816D is a medium-to-large bulldozer used in construction, earthmoving, land clearing, and mining support applications. The single flange design provides effective track guidance while balancing weight and durability.
| Feature | Benefit |
|---|---|
| Single Flange Design | Effective track guidance with balanced weight distribution |
| 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 |
| Lightweight Construction (53 kg) | Easier handling during installation |
| 816D Optimized | Specifically engineered for SEM 816D bulldozer |
| Factory Lubricated | Maintenance-free sealed design |
| Direct OEM Replacement | Guaranteed fit and performance |
| Specification | Detail |
|---|---|
| Machine Model | SEM 816D Bulldozer / Tractor |
| Machine Type | Medium-to-Large Bulldozer |
| Position | Bottom / Lower track roller |
| Roller Type | Single Flange |
| Application | Construction, earthmoving, land clearing |
| Feature | Single Flange (6031609) | Double Flange (6031610) |
|---|---|---|
| Weight | 53 kg | 58 kg |
| Track Guidance | Standard | Enhanced |
| Best Application | General dozing | Side slope operation |
| Component | Part Number | Description |
|---|---|---|
| Track Assembly | 5439475 | Complete track assembly (1,388 kg, 37 links) |
| Idler | 6031613 | Front idler assembly (210 kg) |
| Double Flange Roller | 6031610 | Double flange track roller (58 kg) |
| Sprocket | — | Drive sprocket |
| Top Roller | — | Carrier roller |
Position: This is a bottom/lower track roller - supports machine weight
Lifting Note: At 53 kg, proper lifting techniques are recommended
Bolt Torque: Follow SEM 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 | 6031609 / 603-1609 |
| Type | Track Roller / Single Flange Bottom Roller |
| Weight | 53 kg per piece |
| Compatibility | SEM 816D Bulldozer / Tractor |
| Packaging | Individual box |
Note: This is a single flange bottom track roller for the SEM 816D bulldozer. Verify machine serial number and undercarriage configuration before ordering. Due to weight (53 kg), proper lifting techniques are recommended during installation.
