The Bomag 05585974 Nospin Differential is a genuine OEM component designed for Bomag BW 145, BW 177, and BW 179 single drum rollers. Sourced directly from Bomag, this part delivers the exact engineering tolerances and materials specified for these machines. It fits a broad range of generation-3, generation-4, and generation-5 variants across the BW 145 and BW 177 series, as well as BW 179 single drum rollers, including models BW 145 D-3, BW 145 DH-3, BW 145 PDH-3, BW 177 D-3, BW 177 DH-3, BW 177 DH 3. Ordering by part number 05585974 ensures you receive the correct unit matched to your machine's drivetrain configuration.
Key Features
- OEM-Matched Drivetrain Tolerances — manufactured to Bomag's original specifications, ensuring the differential engages and locks with the same force distribution characteristics as the factory-installed unit
- Drop-In Replacement Fitment — engineered to install directly into the axle housing of compatible BW 145, BW 177, and BW 179 single drum rollers without modification to mounting interfaces or drive shafts
- Broad Model Coverage — fits generation-3 through generation-5 variants across the BW 145 and BW 177 series, plus BW 179 DH-4, BW 179 PDH-4, BW 179 DHC-4, BW 179 PDHC-4, and the C 825 C single drum roller
- Sustained Traction on Uneven Ground — a correctly functioning Nospin differential keeps drive torque applied to both wheels simultaneously, preventing wheel spin on loose or sloped terrain and maintaining compaction consistency
- Genuine Bomag OEM Part — supplied as a genuine OEM assembly, so the geometry, spline count, and internal cam profile match the original, eliminating the guesswork of cross-referencing aftermarket alternatives
A Nospin differential — sometimes called a no-spin or positive-locking differential — replaces the conventional open differential in the drive axle. Rather than allowing one wheel to spin freely when traction is lost, it uses a set of driven clutch members that automatically lock both axle shafts together under load, delivering equal torque to each drive wheel without any driver input. On a single drum roller working across uneven fill, soft subgrade, or sloped compaction passes, this means the machine maintains forward momentum and consistent drum pressure even when one wheel encounters a low-traction surface. When the Nospin unit wears or fails, the result is uneven wheel drive, loss of traction on grade, and inconsistent compaction patterns that may require rework.
Part Details
| Part Number | 05585974 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Nospin Differential |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 145 D-3 | 00817479, 00817637 |
| Single Drum Roller | BW 145 DH-3 | 00817481, 00817638 |
| Single Drum Roller | BW 145 PDH-3 | 00817483, 00817639 |
| Single Drum Roller | BW 177 D-3 | 00817503 |
| Single Drum Roller | BW 177 DH-3 | 00817505, 00817751 |
| Single Drum Roller | BW 177 DH 3 | 00817506 |
| Single Drum Roller | BW 177 PDH-3 | 00817508 |
| Single Drum Roller | BW145D 3 | 00817576, 00817927 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Single Drum Roller | BW 177 D-3 USA | 00817675 |
| Single Drum Roller | BW 177 DH-3 USA | 00817677 |
| Single Drum Roller | BW 177 PDH-3 USA | 00817679 |
| Single Drum Roller | BW 177 DH-4 | 00817761, 00817765, 00818453, 00818543, 00824037, 00824133 |
| Single Drum Roller | BW 177 PDH-4 | 00817763, 00818541 |
| Single Drum Roller | BW 179 DH-4 | 00817767, 00818545, 00824137 |
| Single Drum Roller | BW 179 PDH-4 | 00817769, 00818549, 00824139 |
| Single Drum Roller | BW177D 3 | 00817863 |
| Single Drum Roller | BW177DH 3 | 00817865 |
| Single Drum Roller | BW 145-DH-3 | 00817929 |
| Single Drum Roller | BW 179 DHC-4 | 00818033, 00818547 |
| Single Drum Roller | BW 177 DHC-4 | 00818035, 00818455 |
| Single Drum Roller | BW 177 D-40 | 00818165, 00818525 |
| Single Drum Roller | BW 177 DH-40 | 00818169 |
| Single Drum Roller | BW 177 PDH-40 | 00818171 |
| Single Drum Roller | BW 177 PDHC-4 | 00818283, 00818539 |
| Single Drum Roller | BW 179 PDHC-4 | 00818285 |
| Single Drum Roller | BW145DH 40 | 00818323, 00818939, 00818941 |
| Single Drum Roller | BW 145 DH 40 BW 145 DH 4 | 00818325 |
| Single Drum Roller | BW 145 PDH 40 BW145 PDH 4 | 00818327 |
| Single Drum Roller | BW 177 D-4 | 00818451 |
| Single Drum Roller | BW177D 40 | 00818579 |
| Single Drum Roller | BW177PDH 40 | 00818585 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
| Single Drum Roller | BW 177 D-50 | 00824087 |
| Single Drum Roller | BW 177 DH-50 | 00824089 |
| Single Drum Roller | BW 177 PDH-50 | 00824091 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
