The Bomag 05903009 Oil Cooler is a genuine OEM component designed for BW 125, BW 131, BW 135, and BW 138 series tandem rollers. As a direct OEM replacement, this oil cooler matches the original unit exactly, ensuring proper fitment across compatible Bomag tandem roller models including the BW 138 AD, BW 138 AC, BW 138-AD, BW 135 AD, BW 135 AC, BW 125 ACH, BW 125 ADH, BW 131 ACW-2, BW 131 AD-2, BW 131 ACW-3, and BW 131 AD-3. Sourced directly from Bomag, this part carries the same design and material standards as the unit installed at the factory, so operators and service technicians can install it with confidence.
Key Features
- Genuine OEM Thermal Integrity — manufactured to Bomag's original design specifications, ensuring the correct flow rates and heat-rejection capacity for the hydraulic system in these tandem rollers
- Direct-Swap Fitment — engineered to match the original mounting configuration and port connections, allowing straightforward installation without modification
- Broad Tandem Roller Coverage — fits the BW 125 ACH, BW 125 ADH, BW 131 ACW-2, BW 131 AD-2, BW 131 ACW-3, BW 131 AD-3, BW 135 AC, BW 135 AD, BW 138 AC, BW 138 AD, and BW 138-AD tandem rollers
- Protects Hydraulic System Longevity — a properly functioning oil cooler keeps hydraulic fluid temperatures within operating range, preventing accelerated wear on pumps, motors, and valves throughout the drivetrain
- Verified Part Number Traceability — order with confidence using Bomag part number 05903009, the exact OEM reference for this application
The oil cooler is responsible for dissipating heat from the hydraulic fluid as it circulates through the roller's drive and vibration systems. On a tandem roller working long paving shifts, hydraulic temperatures can climb rapidly — a correctly functioning oil cooler keeps those temperatures in check, preserving fluid viscosity and protecting every downstream hydraulic component. When the oil cooler degrades or fails, fluid temperatures rise unchecked, leading to accelerated seal wear, reduced hydraulic efficiency, and potential pump or motor damage that results in costly unplanned repairs.
Part Details
| Part Number | 05903009 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Oil Cooler |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AD | 00810105, 00810191, 00817473, 00818359 |
| Tandem Roller | BW 135 AD | 00810120, 00817471, 00818357 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 131 ACW-2 | 00817468 |
| Tandem Roller | BW 131 AD-2 | 00817469 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 138 AC | 00817472, 00818361 |
| Tandem Roller | BW 138-AD | 00817572, 00818389 |
| Tandem Roller | BW 131 ACW-3 | 00818697 |
| Tandem Roller | BW 131 AD-3 | 00818699 |
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.
