The Bomag 87070101 Compensation Tank is a genuine OEM component designed for BW 170 AD and BW 174 series tandem rollers, including the BW 174 AC, BW 174 AD, BW 174 AP, and their generational variants. Sourced directly from Bomag, this compensation tank carries the same part number and build specification as the original unit installed at the factory. It fits across the full BW 174 model range — covering AC, AD, AC-2, AD-2, AP, ACP, and AM configurations — as well as the BW 170 AD and BW 170 AD-2 AM tandem rollers. When the original tank shows signs of leakage, cracking, or pressure loss, this part restores proper hydraulic system balance and keeps your machine running at full capacity.
Key Features
- Genuine OEM Construction — manufactured to Bomag's original material and pressure specifications for this hydraulic circuit, ensuring the tank maintains correct fluid volume and system pressure under continuous compaction loads
- Direct-Fit Replacement — matches the mounting points, port locations, and tank geometry of the original, allowing straightforward installation on compatible tandem rollers without reworking brackets or fittings
- Broad BW 174 and BW 170 Coverage — confirmed fitment for BW 170 AD, BW 170 AD-2 AM, BW 174 AC, BW 174 AC-2, BW 174 AD, BW 174 AD-2, BW 174 AP, BW 174 ACP, and all corresponding AM variants
- Hydraulic System Integrity — a functioning compensation tank absorbs thermal expansion in hydraulic fluid and maintains consistent pressure; a failed or cracked tank leads to fluid loss, pressure fluctuation, and potential damage to downstream hydraulic components
- Verified Part Number Fitment — order with confidence using Bomag part number 87070101, cross-referenced against the OEM parts catalog for all listed BW-series tandem roller configurations
The compensation tank is a sealed reservoir within the hydraulic system that manages fluid volume changes caused by temperature fluctuations during machine operation. As hydraulic fluid heats up and expands under load, the compensation tank absorbs the excess to prevent pressure spikes and protect seals, pumps, and actuators throughout the system. When this tank cracks, leaks, or loses its sealing capacity, the hydraulic circuit loses its ability to self-regulate — leading to erratic pressure, fluid contamination risk, and accelerated wear on connected components. Replacing a damaged tank promptly with an OEM unit like the Bomag 87070101 is the most direct way to restore hydraulic stability to your tandem roller.
Part Details
| Part Number | 87070101 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Compensation Tank |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 170 AD | 00817498 |
| Tandem Roller | BW 174 AC | 00817499 |
| Tandem Roller | BW 174 AC AM | 00817500 |
| Tandem Roller | BW 174 AD | 00817501 |
| Tandem Roller | BW 174 AD AM | 00817502 |
| Tandem Roller | BW 174 AD-2 AM | 00817693 |
| Tandem Roller | BW 174 AD-2 | 00817695 |
| Tandem Roller | BW 174 AC-2 | 00817712 |
| Tandem Roller | BW 174 AC-2 AM | 00817714 |
| Tandem Roller | BW 170 AD-2 AM | 00817716 |
| Tandem Roller | BW 174 AP-AM | 00818343 |
| Tandem Roller | BW 174 ACP-AM | 00818355 |
| Tandem Roller | BW 174 AP | 00818395 |
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.
