The Wacker Neuson Tappet Adjustment Screw is a genuine OEM component designed for the RD11AEC and RD11A hydrostatic double drum vibratory rollers. Sourced directly from Wacker Neuson, this OEM part is manufactured to the exact specifications of the original hardware installed at the factory. Correct valve train geometry depends on this screw holding its set position under operating conditions — making part integrity essential for consistent engine performance on your RD11-series roller.
Key Features
- OEM-Grade Thread and Material Integrity — Manufactured to the precise hardness and thread form required to hold valve lash settings without creep or backing off under engine vibration.
- Drop-In Installation — Matches the original screw geometry exactly, threading directly into the rocker arm adjuster without rework or modification to surrounding valve train components.
- Confirmed Fitment for RD11-Series Rollers — Verified for the RD11AEC and RD11A hydrostatic double drum vibratory rollers, so you can order with confidence.
- Preserves Accurate Valve Lash — A correctly set and secured tappet adjustment screw keeps intake and exhaust valve timing within spec, protecting combustion efficiency and engine longevity on the roller's power unit.
- Genuine Wacker Neuson OEM Part — Part number 5000151775 is a factory-authorized component, ensuring full compatibility with Wacker Neuson's service and maintenance procedures for the RD11 platform.
The tappet adjustment screw is a critical part of the engine's valve train, used to set the precise clearance — known as valve lash — between the rocker arm and the valve stem. This clearance controls how far and how long each intake and exhaust valve opens during the combustion cycle. When the screw is worn, incorrectly set, or fails to hold its position, valve lash drifts out of specification, leading to symptoms such as excessive valve noise, loss of power, increased fuel consumption, and potential valve damage over time. Keeping this screw in serviceable condition is a fundamental part of routine engine maintenance on the RD11-series tandem roller.
Part Details
| Part Number | 5000151775 |
|---|---|
| Old Part Number | 0151775 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tappet Adjustment Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Double Drum Vibrat ory Roller | RD11AEC | 5000007695 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11A | 5000007693 |
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.
