The Wacker Neuson Radiator Complete is a genuine OEM cooling assembly designed for the G100 and G120 series T4i generators. Sourced directly from Wacker Neuson, this is the same radiator unit built into these machines at the factory — ensuring correct thermal performance and a drop-in installation without guesswork. Fitment spans the full G100 and G120 T4i lineup, including Custom, Standard, Cold Weather, and Hertz configurations. When your generator's cooling system needs attention, replacing it with the genuine OEM part keeps the system operating exactly as engineered.
Key Features
- OEM Thermal Specification: — Engineered to the exact coolant flow rate and heat dissipation capacity required by the G100 and G120 T4i engine configuration — not a generalized approximation.
- Direct-Fit Cooling Assembly: — Mounts to the existing radiator brackets and hose connections on G100 and G120 generators without cutting, adapting, or refabricating any mounting points.
- Broad G100 / G120 T4i Coverage: — A single part number covers Custom, Standard, Cold Weather, and Hertz variants across both generator families, simplifying procurement for mixed fleets.
- Protects Engine Longevity: — A correctly functioning radiator keeps coolant temperatures within safe operating limits; a degraded unit leads to overheating events that can cause premature engine wear or unplanned shutdowns on the job.
- Genuine Wacker Neuson Part: — Backed by Wacker Neuson's OEM supply chain, part number 5200003503 carries the fit and material integrity expected from an authorized replacement component.
The radiator is the heart of the engine's liquid cooling system. It dissipates heat absorbed by coolant as it circulates through the engine block, transferring that heat into the surrounding air so the engine maintains a safe operating temperature under load. On a generator running at sustained output — especially in demanding or enclosed environments — a compromised radiator that leaks, becomes blocked, or loses cooling efficiency can push engine temperatures beyond safe limits quickly, triggering thermal protection shutdowns or, in severe cases, causing internal engine damage. Replacing a worn or damaged radiator with a correct-specification unit restores full cooling capacity and protects the engine investment over the long term.
Part Details
| Part Number | 5200003503 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Radiator Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| G100 Generator, Custom T4i | G100 | 5200003859, 5200003857, 5200003858, 5200008716 |
| G120 Generator,Custom T4i | G120 | 5200003856, 5200003854, 5200003855, 5200008715 |
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.
