The Wacker Neuson Throttle Return Spring is a genuine OEM component designed for GP5600A, GP6600A, GPS5600A, GPS6600A, GV5600A, and GV6600A series portable generators. As a direct factory replacement, this spring restores correct throttle response and ensures the carburetor returns to its idle position reliably after each load change. Wacker Neuson's genuine OEM designation means the is manufactured to the exact material and tension specifications used in original production, so it integrates with the existing throttle linkage without adaptation. This part covers an extensive range of GP, GPS, and GV generator variants across multiple EPA, CARB, CSA, and CAN GFI configurations.
Key Features
- Correct Spring Tension for Throttle Control — Engineered to the precise coil tension required for consistent throttle snap-back, preventing throttle hang that can cause over-revving or erratic engine speed.
- Genuine OEM Construction — Manufactured from the same spring steel grade and to the same dimensional spec as the original, ensuring consistent load cycling without fatigue cracking or loss of tension over time.
- Drop-In Throttle Linkage Fit — Matches the original attachment points on the throttle lever and carburetor linkage bracket, so installation aligns with standard service procedures for these generator models.
- Wide Generator Series Coverage — Fits GP5600A, GP6600A, GPS5600A, GPS6600A, GV5600A, and GV6600A portable generators across premium, value, electric-start, and wheel-kit configurations in EPA, CARB, CSA, and CAN GFI variants.
- Protects Engine and Electrical Output Stability — A properly functioning throttle return spring keeps engine RPM stable under load transitions, which directly protects connected equipment from voltage fluctuations caused by throttle irregularities.
The throttle return spring is a small but critical component in the generator's throttle control assembly. Its job is to pull the throttle lever back to the idle or closed position whenever the operator releases throttle input or when an automatic governor adjusts fueling — ensuring the engine doesn't stick at wide-open throttle. When this spring weakens, stretches, or breaks, the throttle can hang open, causing the engine to over-rev, hunt erratically, or fail to settle at the correct governed speed under varying electrical loads. Replacing a worn throttle return spring promptly restores smooth, predictable engine speed control and protects both the generator and any sensitive equipment drawing power from it.
Part Details
| Part Number | 5000162605 |
|---|---|
| Old Part Number | 0162605 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Throttle Return Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Premium Portable Generator | GP5600A | 5000620094, 5000620095, 5000620381, 5000620382, 5000620326, 5000620327, 5000620984, 5000620979, 5000620980, 5000620042, 5000620043, 5000620091, 5000620092, 5000620011, 5000620012, 5100041979 |
| GPS5600A,CAN GFI | GPS5600A | 5000620096, 5000620383, 5000620328, 5000620981, 5000620982, 5000620044, 5000620093, 5000620013 |
| GP6600A GENERATOR,CAN GFI | GP6600A | 5000620100, 5000620101, 5000620384, 5000620329, 5000620330, 5000620045, 5000620046, 5000620097, 5000620098, 5000620014, 5000620015, 5100042220 |
| GPS6600A GENERATOR,CAN GFI | GPS6600A | 5000620102, 5000620386, 5000620331, 5000620047, 5000620099, 5000620016 |
| Premium Portable Generator | GP6600 | 5000620385, 5000620989, 5000620990, 5000620985, 5000620986 |
| GPS6600A Generator, EPA | GPS6600 | 5000620987, 5000620988 |
| GP5600A Generator, EPA w/Wheel Kit | GP5600 | 5000620983 |
| Value Generator | GV5600A | 5000620410, 5000620288, 5000620335 |
| Value Portable Generator | GV5600 | 5000620995 |
| Value Portable Generators | GV6600 | 5000620996 |
| Value Generator, 60Hz | GV6600A | 5000620289, 5000620336 |
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.
