The Wacker Neuson Decompression Pin Holder Spring is a genuine OEM component designed for the RD11AEC and RD11A hydrostatic double drum vibratory rollers. As a direct-from-manufacturer part, it meets the exact specifications set during original production, ensuring a correct fit within the decompression assembly. This spring is purpose-built for the RD11 series tandem roller family and is the recommended replacement when the original component shows wear or loss of tension.
Key Features
- Genuine OEM Spring Tension: — Manufactured to the original load and coil specification, so the decompression pin holder operates with the correct actuation force every time.
- Direct-Fit Replacement: — Engineered to seat and secure within the existing decompression pin holder assembly without alteration, maintaining proper pin travel and engagement.
- RD11 Series Compatibility: — Verified fitment for the RD11AEC and RD11A hydrostatic double drum vibratory rollers, covering both configurations in the RD11 tandem roller family.
- Restores Reliable Decompression Function: — A fatigued or broken spring can prevent proper decompression pin actuation, making cold starts difficult and putting unnecessary strain on the engine. Replacing it promptly restores normal starting behavior.
- Engine Starting Safety: — The decompression system directly affects how the engine is loaded during the starting cycle; a correctly tensioned spring ensures the mechanism releases at the right moment, protecting both the operator and the engine.
The decompression pin holder spring is a small but critical part of the engine's decompression system, which temporarily reduces cylinder compression to make pulling or cranking the engine over easier during a cold start. Once the engine reaches starting speed, the spring resets the decompression pin to restore full compression for combustion. When this spring loses tension or breaks, the decompression pin may not seat correctly, leading to hard starts, incomplete decompression release, or failure to start altogether — an issue that becomes particularly noticeable in cold-weather operation on heavy compaction equipment like the RD11 tandem roller.
Part Details
| Part Number | 5000151764 |
|---|---|
| Old Part Number | 0151764 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Decompression Pin Holder Spring |
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.
