The Wacker Neuson Adjuster Spring is a genuine OEM component designed for G70 mobile generators and HI750 and HI900 series indirect-fired air heaters. As a direct factory replacement, this spring is manufactured to the exact tension and dimensional specifications required for proper operation across all compatible machines. Fitment covers multiple G70 mobile generator configurations as well as HI750GM, HI750GM HD, and HI900DGM indirect heater models. Sourcing the correct OEM adjuster spring ensures the adjustment mechanism functions exactly as intended without improvisation or guesswork.
Key Features
- Correct Spring Rate for Adjustment Control — Engineered to the precise tension specification needed to maintain consistent adjuster travel and response in both generator and heater applications.
- Genuine OEM Quality — Sourced directly from Wacker Neuson, this part matches the original component in material grade, coil geometry, and load rating — no substitutions or approximations.
- Direct Drop-In Replacement — Designed to seat and connect exactly as the original, making installation straightforward for trained technicians without the need for custom fitting or modification.
- Broad Fitment Across Two Product Families — Confirmed compatibility with G70 mobile generators and HI750GM, HI750GM HD, and HI900DGM indirect air heaters, including surge-brake trailer configurations.
- Prevents Adjuster Slippage and Inconsistent Output — A fatigued or broken adjuster spring can cause erratic adjustment behavior, leading to unstable generator output or inconsistent heater performance; replacing it restores proper calibration and control.
An adjuster spring applies controlled tension to an adjustment mechanism, holding a component — such as a throttle, governor linkage, or control arm — in a calibrated position while still allowing deliberate movement. In generators, this type of spring is commonly part of the governor or throttle assembly, where it maintains engine speed regulation under varying load conditions. In indirect-fired heaters, it may be part of a fuel or air control mechanism. When the spring weakens, stretches, or breaks, the adjustment it governs loses stability, resulting in erratic engine speed, inconsistent heat output, or loss of control response — all of which require immediate attention to restore safe, reliable operation.
Part Details
| Part Number | 5200003711 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Adjuster Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator | G70 | 5200001318, 5200006879, 5200008343 |
| HI750 DGM,SB HEATER-INDIRECT | HI750GM | 5000620930 |
| HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 | HI750GMHD | 5000620969 |
| MGT1S Mobile Generator Trailer, Surge, Pintle Hitch | MGT1S | 5000009299 |
| MGT2SD Trailer, Surge, Dual Axle, 3500LB Each | MGT2SD | 5000009303, 5200001325 |
| HI900 Heater-DGM,Srg,-40 | HI900DGM | 5200014221, 5200014166 |
| MGT1S Trailer, Surge, Pintle Hitch | MGT 1S | 5200001324 |
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.
