The Wacker Neuson Throttle Return Spring is a genuine OEM component designed for the GS6503G and GS6500G generator series. As a factory-sourced part, it meets the exact tension and dimensional specifications required by the original design — no guesswork on compatibility. This spring is confirmed to fit both the GS6503G and GS6500G models, making it the straightforward choice when you need a direct, verified replacement. Stock one on hand and you'll have the right part ready when it's needed most.
Key Features
- Calibrated Spring Tension: — Manufactured to the original tension specification, ensuring the throttle responds and snaps back with the same force as a new unit straight from the factory.
- Genuine OEM Sourcing: — Sourced directly through Wacker Neuson, so the part carries the same part number, form, and fit as the component installed at the time of manufacture.
- Drop-In Installation: — Designed to seat in the original spring anchor points without modification, keeping your service time short and your machine back in operation quickly.
- Confirmed Fitment — GS6503G and GS6500G: — Verified for both generator models in this series, covering the CE and LA variants of each unit.
- Consistent Throttle Recovery: — A fully functioning throttle return spring keeps engine speed control predictable and responsive; a worn or stretched spring can cause sluggish throttle recovery or erratic engine speed under load.
- Fuel System Safety: — The throttle return spring plays a direct role in ensuring the throttle does not stick open — a critical safety function on any engine-powered generator.
The throttle return spring is a small but essential component in the engine's throttle control system. Its job is to pull the throttle mechanism back to the idle or closed position once the operator releases the throttle lever or the governor demand drops — this keeps engine speed controlled and prevents the throttle from sticking open unintentionally. When the spring loses tension, stretches, or breaks, the throttle may fail to return properly, leading to erratic engine speed, difficulty idling, or an uncontrolled over-rev condition that can damage the engine or create an unsafe operating situation.
Part Details
| Part Number | 5000408774 |
|---|---|
| Old Part Number | 0408774 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Throttle Return Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GS6503G | GS6503G CE | 5100079454 |
| GS6500G | GS6500G LA | 5100079455 |
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.
