The Bomag 58040181 Tension Nut is a genuine OEM component designed for Bomag single drum rollers and tandem rollers, including the BW 124 DH-3, BW 124 DH-5, BW 145 D-3, BW 145 DH-3, BW 145 PDH-3, C 815 C, C 825 C, BW 100 AD-4, BW 100 AC-4, BW 120 AD-4, BW 120 AC-4, BW 125 AD-4, and BW 125 AC-4, among others. Sourced directly from Bomag, this tension nut matches the original part in thread form, material grade, and clamping specification — ensuring it seats and torques correctly without adjustment. When it comes to fasteners in compaction equipment drivetrains and assemblies, using the correct OEM part matters for maintaining proper preload and preventing component loosening under vibration.
Key Features
- Genuine OEM Construction — manufactured to Bomag's exact thread form and material specification, delivering the correct clamping force and preload for this application
- Direct Replacement Fit — threads in as a direct substitute for the original tension nut, mating correctly with existing hardware without reworking the surrounding assembly
- Broad Single Drum and Tandem Roller Coverage — fits BW 124, BW 145, and C-series single drum rollers as well as BW 100, BW 120, and BW 125 tandem rollers across multiple generation variants
- Vibration-Resistant Integrity — a correctly torqued tension nut maintains fastener preload through the sustained vibration cycles that compaction equipment produces; a worn or incorrect nut risks progressive loosening and assembly damage
- Correct Part Number Confirmed — order with confidence using Bomag part number 58040181, matching the original fitment specification across all covered roller models
A tension nut is a precision fastener designed to apply and hold a specific clamping load on a rotating or structural assembly. In compaction rollers, tension nuts are commonly used to secure drum bearings, eccentric shaft components, and drive assemblies where maintaining consistent preload is critical to performance. When a tension nut is worn, improperly torqued, or replaced with an incorrect substitute, it can allow components to shift under load, leading to accelerated bearing wear, vibration imbalance, or outright mechanical failure. Using the correct OEM tension nut ensures the assembly remains locked at the intended clamp load throughout the service interval.
Part Details
| Part Number | 58040181 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Tension Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 124 DH-3 | 00817464 |
| Single Drum Roller | BW 124 PDH-3 | 00817465 |
| 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 | BW124PDH 3 | 00817574, 00818025 |
| Single Drum Roller | C 815 C | 00817575 |
| Single Drum Roller | BW145D 3 | 00817576, 00817927 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Tandem Roller | BW 100 AD-4 | 00817685, 00818465, 00824271, 00824273 |
| Tandem Roller | BW 100 AC-4 | 00817687, 00818467, 00818731 |
| Tandem Roller | BW 120 AD-4 | 00817689, 00818377, 00818469, 00818477, 00818593, 00818733, 00824173 |
| Tandem Roller | BW 120 AC-4 | 00817691, 00818471, 00818597 |
| Single Drum Roller | BW 145-DH-3 | 00817929 |
| Tandem Roller | BW 125 AD-4 | 00817937, 00818473 |
| Tandem Roller | BW 125 AC-4 | 00818271, 00818475 |
| Single Drum Roller | BW 124 DH-4 | 00818295, 00824495, 00824709 |
| Single Drum Roller | BW 124 PDH | 00818297 |
| Single Drum Roller | BW124DH 4 | 00818311 |
| 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 124 DH-40 | 00818521, 00824499 |
| Single Drum Roller | BW 124 PDH-40 | 00818523, 00824497 |
| Single Drum Roller | C815D | 00818569 |
| Single Drum Roller | BW124PDH-40 | 00818571 |
| Tandem Roller | BW120AD 4 | 00818595, 00818871 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
| Single Drum Roller | BW 124 PDH-5 | 00825075, 00825625, 00825735 |
| Single Drum Roller | BW 124 DH-5 | 00825193, 00825623, 00825733 |
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.
