The Wacker Neuson Oil Pressure Sensor is a genuine OEM component designed for the G25 and G50 series portable generators. As a direct OEM replacement, this sensor is produced to the same specification as the original, ensuring accurate oil pressure monitoring across the full range of G25 and G50 configurations — including Standard, Cold Weather, Custom, Extended Run Tank, and Skid-Mounted variants. Fitment also extends to select G20 mobile generator models. Keep this part on hand for routine maintenance or unplanned sensor failure to get your generator back online fast.
Key Features
- Calibrated OEM Sensing Accuracy — Matched to the exact pressure range and signal output required by the G25 and G50 generator control systems, so the engine protection circuit responds correctly.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson; part number 5000176122 matches the original component installed at the factory.
- Broad G-Series Fitment — Compatible across a wide range of G20, G25, and G50 generator configurations, including T4i, T4F, Standard, Custom, Cold Weather, Extended Run, and Skid-Mounted builds.
- Protects Against Engine Damage — A correctly functioning oil pressure sensor triggers shutdown before low oil pressure causes internal engine wear; a failed sensor leaves the engine running unprotected.
- Direct Plug-In Replacement — Installs into the existing sensor port with no adaptation needed; connector and thread spec match the original mounting location.
- Critical Electrical Safety Function — As part of the engine protection circuit, a properly rated OEM sensor ensures the shutdown threshold is triggered at the correct pressure, preventing unsafe operating conditions.
The oil pressure sensor monitors engine oil pressure in real time and sends a signal to the generator's control system. If oil pressure drops below a safe threshold — due to low oil level, a failing pump, or a developing internal fault — the sensor triggers an automatic shutdown to prevent engine damage. When the sensor itself fails or reads inaccurately, the engine may shut down unnecessarily or, more critically, continue running without protection during a genuine low-pressure event. Replacing a faulty sensor with a genuine OEM unit restores the integrity of the engine protection system and ensures the generator operates safely under load.
Part Details
| Part Number | 5000176122 |
|---|---|
| Old Part Number | 0176122 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Pressure Sensor |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| G25 Generator, Custom T4i | G25 | 5000620642, 5000620640, 5000620709, 5000620641, 5200005557, 5200003991, 5000620931, 5200001316, 5200014461, 5200014460, 5200014462, 5000621005, 5100022834, 5100042507, 5100042510, 5100042512, 5100042509, 5100025836, 5100042508 |
| G50-GENERATOR, SKID BASE, CUSTOM T4i | G50 | 5200001062, 5200001063, 5200006878, 5200001317, 5200001060, 5200001061, 5000620710, 5000620964, 5000620965, 5000620966, 5100025812, 5100026954, 5100029210, 5100026955, 5100026956 |
| Mobile Generator | G20 | 5200016628, 5200022625 |
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 5000164389 Oil Pressure Sensor Electronic
