The Wacker Neuson Water Pump Pulley is a genuine OEM component designed for the RD27-100 and RD27-120 hydrostatic vibratory rollers. Sourced directly from Wacker Neuson, this pulley meets the exact dimensional and material specifications of the original part fitted at the factory. It is a direct-fit replacement for both RD27 series roller configurations, ensuring the cooling system operates exactly as engineered. If your machine is showing signs of belt slippage, overheating, or worn pulley grooves, the is the correct OEM solution to restore proper water pump drive function.
Key Features
- OEM-Matched Groove Profile — Pulley groove geometry matches the original specification, ensuring correct belt seating and full torque transfer to the water pump without slipping or accelerated belt wear.
- Direct-Fit Installation — Machined to the same bore diameter and mounting dimensions as the factory pulley, so it bolts straight onto the water pump shaft with no rework or adaptation.
- Compatible with RD27 Series Rollers — Verified fitment for the RD27-100 and RD27-120 hydrostatic vibratory rollers, covering both standard machine configurations in this tandem roller family.
- Cooling System Integrity — A correctly sized and balanced pulley maintains consistent water pump speed across the engine's RPM range, keeping coolant flowing efficiently and protecting the engine from heat-related stress during sustained compaction work.
- Genuine Wacker Neuson OEM Part — Manufactured to Wacker Neuson's original design tolerances, so you can be confident the 5000161426 will perform identically to the part it replaces.
The water pump pulley transfers rotational drive from the engine's belt system to the water pump, which circulates coolant through the engine to regulate operating temperature. If the pulley is worn, cracked, or out of round, belt tension becomes inconsistent, coolant flow drops, and the engine is at risk of overheating — particularly under the sustained load demands of asphalt and soil compaction work. Replacing a damaged pulley promptly with the correct OEM part restores proper belt alignment and ensures the cooling system performs as designed throughout the machine's working cycle.
Part Details
| Part Number | 5000161426 |
|---|---|
| Old Part Number | 0161426 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Pump Pulley |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 5000620038 |
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.
