The Bomag 65270120 Water Pump is a genuine OEM component designed for the BW 138 AD-5 and BW 135 AD-5 tandem rollers. Sourced directly from Bomag, this water pump matches the original specifications and mounts exactly as the factory unit does, ensuring a trouble-free installation. It is the correct replacement for operators looking to restore proper engine cooling performance on these tandem roller models.
Key Features
- Genuine OEM Cooling Integrity — manufactured to Bomag's original flow-rate and seal specifications, ensuring consistent coolant circulation rather than the reduced output that an improperly engineered substitute can deliver
- Direct-Mount Replacement — engineered to the same bolt pattern, inlet and outlet dimensions, and shaft interface as the original unit, so this water pump drops into place without modification
- Confirmed Tandem Roller Fitment — verified for BW 138 AD-5 and BW 135 AD-5 tandem rollers; reference part number 65270120 when ordering to confirm the correct application
- Sustained Engine Temperature Control — a properly functioning water pump keeps coolant moving through the engine at the correct rate, preventing overheating during continuous compaction passes on hot asphalt
- Reduced Risk of Secondary Engine Damage — a failing water pump can allow coolant starvation and overheating that damages head gaskets and other internal components; replacing this part promptly protects the broader drivetrain
The water pump circulates engine coolant through the engine block, cylinder head, and radiator, maintaining the operating temperature needed for efficient combustion and long engine life. On ride-on tandem rollers like the BW 138 AD-5 and BW 135 AD-5, the engine works under sustained load during paving and compaction operations, making reliable coolant flow especially critical. When the water pump wears out — through seal failure, bearing wear, or impeller damage — coolant circulation drops, engine temperatures rise, and the machine becomes vulnerable to costly thermal damage.
Part Details
| Part Number | 65270120 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Water Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AD-5 | 00818721, 00824175, 00824921, 00824927, 00825351, 00825559 |
| Tandem Roller | BW 135 AD-5 | 00818723, 00824931, 00825355, 00825563 |
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.
