The Wacker Neuson Valve Spring is a genuine OEM component designed for RD7Ye, RD7Yehf, RD7Yeh, RD7Yehfb, and RD10Yehf series walk-behind tandem rollers. As a direct OEM part, it is manufactured to the exact specifications required by Wacker Neuson for proper valve train operation across these compaction machines. This spring is the correct replacement for both LRC and HRC configurations within the covered model range, making it a versatile and accurate choice for service and repair. Cross-reference part number against your machine's serial plate before ordering to confirm compatibility.
Key Features
- Genuine OEM Spring Rate Integrity — Manufactured to the precise tension and load specifications required for consistent valve actuation — no substitution for the correct spring rate in a compaction engine's valve train.
- Drop-In Valve Train Replacement — Engineered to seat correctly against OEM valve retainers and keepers, allowing straightforward installation without machining or modification to mating components.
- Broad RD-Series Coverage — Fits multiple RD7Ye, RD7Yeh, RD7Yehf, RD7Yehfb, and RD10Yehf configurations across both LRC and HRC variants.
- Sustained Valve Sealing Performance — A correctly rated valve spring holds proper valve closure under compression, preserving cylinder pressure and engine efficiency; a fatigued spring causes misfires, power loss, and accelerated valve seat wear.
- Engine Safety and Emission Compliance — Maintaining correct valve spring tension is essential for proper combustion timing and emissions behavior on equipment subject to EPA and CARB standards.
A valve spring holds the engine's intake or exhaust valve firmly closed against its seat when the valve is not being actuated by the camshaft. It provides the return force that snaps the valve shut after each opening cycle, ensuring a tight seal that retains combustion pressure and prevents exhaust gases from bleeding back through the port. When a valve spring weakens through fatigue or breaks entirely, the valve may float, bounce, or fail to seat fully — resulting in noticeable power loss, rough running, increased fuel consumption, and potential damage to the valve, seat, and piston if left unaddressed.
Part Details
| Part Number | 5100031839 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Spring |
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.
