The Wacker Neuson Pinion Stopper Set is a genuine OEM component designed for the GPSi4300 Portable Inverter Generator series. Sourced directly from Wacker Neuson, this set meets the exact specifications of the original part, ensuring a correct, trouble-free installation every time. If your GPSi4300 is showing signs of wear or damage in the pinion stopping mechanism, replacing it with part restores the drivetrain to proper operating condition. Verified fitment covers GPSi4300 models, giving you confidence before you order.
Key Features
- Genuine OEM Stopper Geometry — Manufactured to the precise engagement tolerances Wacker Neuson specifies for the pinion stopping mechanism, so the set seats and locks exactly as intended.
- Direct-Fit Replacement — Engineered to swap in place of the original set without machining or secondary fitting work, keeping your generator rebuild on schedule.
- Confirmed GPSi4300 Fitment — Verified for GPSi4300 Portable Inverter Generator models; cross-reference part number 5000226057 before ordering to confirm your unit.
- Restores Proper Pinion Engagement — A worn or broken stopper set allows the pinion to travel beyond its intended limit, leading to drivetrain noise, premature gear wear, or failure to start; this replacement corrects that condition.
- Backed by Wacker Neuson OEM Standards — As a genuine part, 5000226057 is produced under the same quality controls as the original factory component, not a generic approximation.
The pinion stopper set controls the travel limit of the pinion gear during the starter engagement cycle on the GPSi4300 inverter generator. It prevents the pinion from over-traveling into or away from the flywheel ring gear, protecting both components from impact damage and ensuring clean, repeatable engagement every time the generator is started. When the stopper set wears out or breaks, the pinion can slam beyond its intended stop point, causing hard-start conditions, excessive noise, or accelerated wear on the ring gear — making timely replacement critical to keeping the starting system operating correctly.
Part Details
| Part Number | 5000226057 |
|---|---|
| Old Part Number | 0226057 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pinion Stopper Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GPSi4300 | GPSi4300 | 5000620963, 5000620783, 5000620937 |
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.
