The Bomag 05729256 Oil Cooler is a genuine OEM component designed for Bomag BW 145 DH 40, BW 145 PDH 40, BW 145 D 40, and BW 177 D-4 single drum rollers. As a direct Bomag OEM part, this oil cooler is built to the exact specifications required for proper thermal management in these machines. Buyers can order with confidence knowing this is the same component supplied through Bomag's authorized parts network, engineered to match the original installation in compatible single drum rollers.
Key Features
- Genuine OEM Thermal Spec — manufactured to Bomag's original heat-exchange capacity requirements, ensuring the hydraulic or engine oil stays within the operating temperature range the machine was designed for
- Direct Drop-In Replacement — matches the original mounting points, port sizing, and line connections of the factory unit for a straightforward swap on compatible rollers
- Broad Single Drum Roller Coverage — fits BW 145 DH 40, BW 145 D 40, BW 145 PDH 40, and BW 177 D-4 single drum rollers, covering multiple variants across the BW 145 and BW 177 D-4 lines
- Protects Against Overheating Damage — a functioning oil cooler prevents viscosity breakdown and bearing wear caused by overheated oil; a failed cooler can lead to costly drivetrain or hydraulic system damage
- Verified Part Number Fitment — part number 05729256 cross-references directly to the correct application, so you order the right cooler the first time
An oil cooler regulates the temperature of hydraulic or engine oil as it circulates through the machine, dissipating excess heat through a core before the fluid returns to the system. On heavy single drum rollers like the BW 145 and BW 177 D-4, sustained compaction work generates significant heat in the hydraulic circuit, making a properly functioning oil cooler critical to system longevity. When the oil cooler becomes blocked, corroded, or damaged, fluid temperatures climb rapidly — accelerating seal degradation, reducing hydraulic response, and putting the entire drivetrain at risk.
Part Details
| Part Number | 05729256 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Oil Cooler |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
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.
