The Wacker Neuson Tappet is a genuine OEM component designed for the RD7Ye, RD7Yeh, RD7Yehf, RD7Yehfb, and RD10Yehf series walk-behind tandem rollers. Sourced directly from Wacker Neuson, this tappet meets the exact dimensional and material specifications of the original part, ensuring correct valve train geometry and consistent engine performance. It fits across multiple drum roller configurations — including LRC and HRC variants — covering a wide span of the RD series lineup.
Key Features
- OEM-Spec Surface Hardness — Manufactured to Wacker Neuson's original hardness and dimensional tolerances, so contact surfaces resist wear at the same rate as the part it replaces.
- Drop-In Valve Train Replacement — Matches the original tappet profile exactly, seating correctly against the camshaft lobe and valve stem without shimming or adjustment beyond standard valve clearance procedure.
- Broad RD Series Coverage — Confirmed fitment across RD7Ye, RD7Yeh, RD7Yehf, RD7Yehfb, and RD10Yehf models in both LRC and HRC configurations.
- Protects Valve Train Integrity — A worn or failed tappet causes erratic valve timing, loss of compression, and accelerated camshaft wear; replacing it promptly restores smooth, consistent engine operation.
- Genuine Wacker Neuson Part — Part number 5100031871 is an authorized OEM component, giving you full confidence in sourcing accuracy before the part ships.
A tappet — also called a valve lifter — sits between the camshaft and the valve stem in the engine's valve train. As the camshaft rotates, the tappet translates that rotational motion into the linear movement needed to open and close the engine's intake and exhaust valves at precisely the right moment. When a tappet wears down or develops a pitted contact face, valve timing becomes inconsistent, leading to rough running, reduced power output, and — if left unaddressed — damage to the camshaft lobe or valve stem itself. Replacing a worn tappet with a correctly spec'd OEM part restores proper valve operation and protects the surrounding engine components.
Part Details
| Part Number | 5100031871 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tappet |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD7Ye Tandem Roller | RD7Ye | 5100027116, 5100027117, 5100038032, 5100048340 |
| RD7Yehf HRC | RD7Yehf HRC | 5100006337, 5100006341 |
| RD7Yeh LRC | RD7Yeh LRC | 5100006335 |
| RD7Yeh HRC | RD7Yeh HRC | 5100006336, 5100006467 |
| RD7Yehf LRC | RD7Yehf LRC | 5100006340 |
| RD7Yehfb LRC | RD7Yehfb LRC | 5100006345 |
| RD7Yehfb HRC | RD7Yehfb HRC | 5100006346 |
| RD10Yehf LRC | RD10Yehf LRC | 5100070502 |
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.
