The Wacker Neuson Valve Rocker Arm is a genuine OEM component designed for the GS6503G and GS6500G generator series. Sourced directly from Wacker Neuson, this part meets the same specifications as the original, ensuring a direct, hassle-free installation. Whether you're performing a scheduled valve service or replacing a worn rocker arm, part restores proper valve train operation and gets your generator back to work. Confirmed fitment covers the GS6503G and GS6500G models, so you can order with confidence.
Key Features
- OEM Valve Geometry Compliance — Manufactured to Wacker Neuson's exact rocker arm dimensions, ensuring correct valve lift, timing, and contact angle with no guesswork.
- Drop-In Replacement — Matches the original mounting points and pivot geometry on the GS6503G and GS6500G cylinder heads for straightforward installation.
- Confirmed Fitment for GS6500G and GS6503G Series — Verified compatibility across both generator models, so you're ordering the right part the first time.
- Restores Full Engine Breathing Efficiency — A correctly functioning rocker arm opens and closes valves at precisely the right moment; a worn or failed one causes misfires, power loss, and uneven running.
- Durable Wear Surface — Built with the contact surface hardness required to withstand continuous reciprocating load against the valve stem and camshaft lobe.
The valve rocker arm is a pivoting lever in the engine's valve train that transfers motion from the camshaft to open and close the intake and exhaust valves in sequence. It acts as a mechanical link between the cam lobe and the valve stem, and its geometry directly controls how far and how quickly each valve opens. When a rocker arm wears at its contact points or cracks under load, valve timing is disrupted — leading to rough running, reduced power output, increased fuel consumption, and potential valve damage if left unaddressed.
Part Details
| Part Number | 5000408748 |
|---|---|
| Old Part Number | 0408748 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Rocker Arm |
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.
