The Wacker Neuson Backup Plunger Spring is a genuine OEM component designed for the RD7 series walk-behind tandem rollers, including the RD7H-ES, RD7H-S, and RD7 double drum vibratory roller variants. Sourced directly from Wacker Neuson, this spring delivers the precise tension and return force the plunger assembly demands in active compaction conditions. It is a direct-fit replacement for all listed RD7 configurations, including EU-spec models, ensuring you restore the system to its original operating standard. If your tandem roller is showing inconsistent plunger response or control feel, replacing this spring is a straightforward first step.
Key Features
- Genuine OEM Spring Rate: — Manufactured to the exact load and deflection specification Wacker Neuson requires for consistent plunger return and engagement across the RD7 platform.
- Drop-In Plunger Assembly Fit: — Sized and formed to seat correctly within the plunger housing without reworking surrounding components, streamlining the replacement process.
- Broad RD7 Series Coverage: — Confirmed fitment across RD7H-ES, RD7H-S (including EU variants), RD7H, and RD7-RAW double drum vibratory roller configurations.
- Sustained Compaction Control: — A properly tensioned backup plunger spring maintains crisp, repeatable operator input response; a fatigued or broken spring can cause sluggish or erratic plunger behavior, directly affecting compaction consistency on asphalt and soil passes.
- Verified OEM Part Number: — Part number 5000112351 cross-references directly to Wacker Neuson's current parts catalog, eliminating guesswork when ordering for your RD7 roller.
The backup plunger spring provides the return force that resets the plunger to its neutral or rest position after each actuation cycle. In a walk-behind tandem roller, this spring works within the control or hydraulic actuation circuit to ensure the plunger responds predictably and snaps back consistently under load. When the spring loses tension or breaks, the plunger may stick, travel inconsistently, or fail to return fully — leading to uneven compaction output and increased wear on adjacent components. Replacing a worn spring promptly keeps the control system behaving as designed and protects the integrity of the surrounding assembly.
Part Details
| Part Number | 5000112351 |
|---|---|
| Old Part Number | 0112351 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Backup Plunger Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD 7S | RD7H-S EU | 5000620795 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| Walk-behind Vibratory Roller ( no engine) | RD7-RAW | 5000620079, 5000620596, 5000620478 |
| Double Drum Vibratory Roller | RD7H | 5000008042 |
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.
