The Wacker Neuson Alternator, 12V-40A is a genuine OEM component designed for the PT6Y and PT6YT series trash pumps, including PT6Y-AU and PT6YT-IN variants. As a direct OEM part, it is manufactured to the same output and voltage specifications as the original unit fitted at the factory, ensuring consistent charging performance across the machine's electrical system. This alternator is confirmed compatible across multiple PT6Y EPA T4 and standard PT6Y configurations, making it the correct choice for a wide range of Wacker Neuson pump models.
Key Features
- Correct Output Rating: — Rated at 12V, 40A to match the original electrical load requirements of PT6Y and PT6YT series pumps — no guesswork on compatibility.
- Genuine OEM Part: — Sourced directly from Wacker Neuson, this alternator meets the same build and output standards as the unit your machine left the factory with.
- Direct-Fit Replacement: — Engineered to bolt into the same mounting position and connect to the same wiring harness as the original, streamlining the swap during service.
- Broad PT6Y Series Fitment: — Compatible with PT6Y, PT6YT, PT6Y-AU, PT6YT-IN, and PT6Y EPA T4 models, covering a wide range of Wacker Neuson pump configurations under a single part number.
- Electrical System Integrity: — A properly functioning alternator keeps the battery charged and all onboard electrical components powered during operation; a failing unit can cause unexpected shutdowns and battery drain in the field.
- Electrical Safety Compliance: — As an OEM-specified electrical component, this alternator is validated for use in the PT6Y platform, supporting correct voltage regulation and protecting connected components from overcharge or undercharge conditions.
The alternator is responsible for generating electrical power while the engine is running, continuously recharging the battery and supplying current to the machine's electrical system. On trash pump applications like the PT6Y series, a healthy alternator is essential to sustaining reliable engine starts and powering any onboard controls or indicators. When an alternator begins to fail — through worn brushes, bearing failure, or diode breakdown — output voltage drops, the battery depletes, and the machine becomes increasingly difficult to start or may shut down mid-operation.
Part Details
| Part Number | 5100071033 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Alternator, 12V-40A |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT6Y | PT6Y-SA | 5100070835 |
| PT6YT | PT6YT | 5100070966 |
| PUMP PT6Y-AU | PT6Y-AU | 5100076956 |
| PT6YT | PT6YT-IN | 5100077923 |
| PT6Y | PT6Y | 5100064168, 5100069617 |
| PT6Y | PT6Y EPA T4 | 5100073464 |
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.
Wacker Neuson
Wacker Neuson Part # 5000128335 - Relay-12V/40A - Genuine OEM Part
Wacker Neuson