Wacker Neuson 1000012333 Start Relay

The Wacker Neuson 1000012333 Start Relay is a genuine OEM component designed for PT6Y and PT6YT series self-priming centrifugal trash pumps. As a direct factory replacement, this relay matches the original electrical specifications of the pump's starting circuit, ensuring correct engagement every time the unit is called to run. Fitment covers PT6Y, PT6Y-SA, PT6Y-AU, PT6Y EPA T4, PT6YT, and PT6YT-IN configurations, making this a versatile stocking part for fleets running multiple PT6Y variants. Sourcing the genuine Wacker Neuson 1000012333 means no guesswork on compatibility — the part installs in the original position using the existing wiring harness connections.

Key Features

• OEM-Correct Electrical Rating — Manufactured to the original coil voltage and contact capacity specification of the PT6Y starting circuit, so the relay triggers cleanly under load without arcing or chatter.
• Direct Plug-In Replacement — Connects directly to the existing wiring harness terminals; no splicing or adapter wiring needed to complete the swap.
• Broad PT6Y Family Coverage — Fits PT6Y, PT6Y-SA, PT6Y-AU, PT6Y EPA T4, PT6YT, and PT6YT-IN pump models, covering gasoline and EPA Tier 4 compliant variants within the 6-inch trash pump lineup.
• Protects the Starting Circuit — A properly functioning relay isolates high-current motor loads from the control switch, extending the life of surrounding electrical components. A failed relay can result in a pump that cranks slowly, fails to start, or draws excessive current through the ignition switch.
• Electrical Safety Compliance — Using the correct OEM-rated relay ensures the starting circuit operates within its designed current limits, reducing the risk of overheating or wiring damage during repeated start cycles.

The start relay acts as an electrically controlled switch that connects battery power to the pump's starter motor when the operator turns the ignition key. Rather than routing full starting current through the ignition switch itself, the relay handles the high-amperage load separately, protecting the control wiring from heat and wear. When the relay fails — whether due to burned contacts, a failed coil, or corrosion — the pump will not start or may start intermittently, even though the engine and fuel system are in good condition.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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