The Wacker Neuson Rotor Complete, ECP321L4C MD35 is a genuine OEM component designed for the G70 Generator series, covering Standard T4F, Cold Weather T4F, Custom T4F, and URI HVAC T4F configurations. As a factory-sourced assembly, this rotor is manufactured to the exact tolerances and output specifications required by the ECP321L4C MD35 alternator end, ensuring correct magnetic performance and electrical output from day one. Confirmed fitment spans multiple G70 variants, making this the right part whether you're servicing a standard rental unit or a specialized URI HVAC or cold weather build. Keep your G70 generating at rated capacity by replacing a worn or damaged rotor with the correct OEM assembly.
Key Features
- OEM-Specified Electromagnetic Tolerancing — Wound and balanced to the exact pole and winding specifications of the ECP321L4C MD35 alternator end, delivering correct voltage and frequency output under load.
- Drop-In Alternator End Replacement — Engineered to mount directly into the G70's alternator housing with correct shaft dimensions and bearing interfaces, requiring no machining or adaptation.
- Broad G70 Series Coverage — Fits G70 Standard T4F, Cold Weather T4F, Custom T4F, URI HVAC T4F, and URI CW T4F configurations across multiple build numbers.
- Full Power Output Restoration — A degraded or failed rotor causes voltage instability, reduced output, or complete power loss; replacing it with this genuine assembly restores the generator's rated electrical performance.
- Electrical Safety Compliance — As the core rotating electrical component, using a genuine OEM rotor ensures the alternator meets its rated insulation class and output safety parameters — critical for powering sensitive HVAC and site electrical loads.
The rotor is the spinning core of the generator's alternator end. As it rotates within the stator, its magnetic field induces the alternating current that powers connected equipment. In the G70's ECP321L4C MD35 alternator, the rotor must spin true and maintain precise winding resistance to produce stable voltage at the correct frequency. When a rotor degrades — through winding failure, bearing wear, or physical damage — the result is erratic voltage, overheating, or a complete loss of power generation. Replacing the rotor complete assembly restores the alternator's ability to produce clean, stable power output at the generator's rated capacity.
Part Details
| Part Number | 5100062974 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Rotor Complete, ECP321L4C MD35 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| G70 Generator, Standard T4F | G70 | 5200023226, 5200023227, 5200023228, 5100042499, 5100036306, 5100042497, 5100042498, 5100042500 |
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.
