The Bomag 05740978 Spacer Disk is a genuine OEM component designed for Bomag tandem rollers across the BW 100, BW 115, BW 120, BW 125, and BW 131 series, including models BW 100 AD-4, BW 100 AC-4, BW 120 AD-4, BW 120 AC-4, BW 125 AD-4, BW 125 AC-4. Sourced directly from Bomag, this spacer disk carries the same part number and dimensional tolerances as the original installed component. It delivers a direct, no-guesswork replacement for machines showing wear or damage at the spacer position, covering a wide range of generation-4 and generation-5 tandem roller variants.
Key Features
- Genuine OEM Dimensional Accuracy — manufactured to Bomag's exact thickness and diameter specifications, ensuring the spacer disk maintains correct component spacing and load distribution within the drum or drivetrain assembly.
- Direct OEM Replacement — referenced under part number 05740978 and engineered to install in place of the original without rework, shimming, or modification to mating components.
- Broad Tandem Roller Coverage — fits BW 100, BW 115, BW 120, BW 125, and BW 131 tandem rollers across AC, AD, ACW, SL, SLC, and CC variants in the -3, -4, and -5 generations, including the BW 120 AD-5 CC and BW 131 ACW-5.
- Protects Adjacent Components — a correctly fitted spacer disk prevents axial play and uneven contact between rotating parts, reducing accelerated wear on bearings, shafts, and housings that a missing or worn disk would otherwise cause.
- Backed by Bomag OEM Supply Chain — as a genuine Bomag part, the spacer disk is produced to the same material and hardness standards as the original, supporting consistent service life across compaction cycles on asphalt work.
A spacer disk is a precision-thickness washer or disc used to set and maintain the correct axial clearance between rotating or sliding components — such as drum bearings, gear assemblies, or drive shafts — inside a tandem roller. By holding parts at the designed separation, it prevents metal-to-metal contact, controls end-play, and ensures even load transfer through the assembly. When a spacer disk wears thin, cracks, or goes missing, adjacent components begin to shift under load, accelerating bearing wear and potentially causing vibration, noise, or drivetrain damage that far exceeds the cost of the disk itself.
Part Details
| Part Number | 05740978 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Spacer Disk |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| Tandem Roller | BW 125 AD-4 | 00817937, 00818473 |
| Tandem Roller | BW 125 AC-4 | 00818271, 00818475 |
| Tandem Roller | BW120AD 4 | 00818595, 00818871 |
| Tandem Roller | BW 115 AC-3 | 00818693 |
| Tandem Roller | BW 115 AD-3 | 00818695 |
| Tandem Roller | BW 100 AD-5 | 00824029, 00824561, 00824833, 00824995, 00825357, 00825643, 00826215, 00826219, 00827043 |
| Tandem Roller | BW 120 AC-5 | 00824031, 00824839, 00825363, 00826093 |
| Tandem Roller | BW 120 AD-5 | 00824033, 00824563, 00824835, 00824997, 00825359, 00825645, 00826049, 00826217, 00826221, 00827045 |
| Tandem Roller | BW 100 AC-5 | 00824275, 00824837, 00825361, 00826091, 00827047 |
| Tandem Roller | BW 120 SL-5 | 00824537, 00824559, 00825001, 00825615, 00827055 |
| Tandem Roller | BW 100 SL-5 | 00824557, 00824999, 00826553 |
| Tandem Roller | BW 115 AC-5 | 00824933 |
| Tandem Roller | BW 131 AD-5 | 00824935 |
| Tandem Roller | BW 131 ACW-5 | 00824937 |
| Tandem Roller | BW 120 SLC-5 | 00826435 |
| Tandem Roller | BW 120SL-5 | 00826609 |
| Tandem Roller | BW 120 AD-5 CC | 00826793 |
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.
