The Wacker Neuson O-Ring is a genuine OEM seal designed for the G40 and G50 generator series, including standard, mobile, and LATAM Premium configurations. As a direct OEM replacement, this O-Ring is manufactured to the same specifications as the original, ensuring a correct, leak-free fit within the generator's fluid or air passages. Wacker Neuson OEM parts are sourced through authorized channels, so you can be confident the is the right part for your machine. Compatible models include the G40 and G50 generator variants across multiple build codes.
Key Features
- Genuine OEM Sealing Material — Manufactured to the original compound and dimensional spec, ensuring the correct compression set and resistance to fuel, oil, or coolant exposure for this generator application.
- Drop-In Replacement — Matches the original groove dimensions and cross-section exactly, seating correctly without trimming, stretching, or adaptation.
- Broad G-Series Fitment — Compatible across multiple G40 build variants (standard, mobile, LATAM Premium 50Hz) and the G50 generator series.
- Leak Prevention — A correctly seated O-Ring maintains fluid and pressure containment within the generator; a degraded or cracked seal can lead to fluid loss, contamination ingress, or loss of operating pressure.
- Fuel and Fluid System Safety — In fuel or oil circuit applications, a properly rated O-Ring is essential to prevent hazardous leaks; using the correct OEM-spec seal eliminates the risk of material incompatibility.
An O-Ring is a circular elastomeric seal used to close the gap between two mating surfaces, preventing the escape of fluids or gases under pressure. In portable generators like the G40 and G50 series, O-Rings appear throughout the fuel system, oil circuit, and cooling passages, where they are critical to maintaining pressure integrity and preventing contamination. When an O-Ring ages, hardens, or becomes damaged, it loses its ability to compress and seal effectively — leading to leaks, pressure loss, or fluid mixing that can cause broader mechanical damage if left unaddressed.
Part Details
| Part Number | 5200021345 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Generator | G40 | 5200015906, 5200015907, 5200016640, 5100029184 |
| Generator | G50 | 5200015909 |
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.
