The Wacker Neuson Oil Pressure Switch is a genuine OEM component designed for the CRT48-31V series ride-on concrete trowels. This is a direct factory replacement sourced from Wacker Neuson, ensuring the correct electrical specification and thread fitment for your machine. Compatible models include the CRT48-31V, CRT48-31V-H High Speed, CRT48-31V-E, CRT48-31V-ES-E, and CRT48-31V-ES Electronic Steering variants. Using the correct OEM switch means your engine protection system operates exactly as engineered — no guesswork, no adaptation.
Key Features
- Correct Pressure Threshold Spec: — Genuine OEM calibration ensures the switch opens and closes at the exact oil pressure setpoint required by the CRT48-31V engine protection circuit.
- Direct Plug-and-Play Fitment: — Matches the original connector, thread pitch, and mounting configuration for a straightforward swap with no modifications to the harness or block.
- Broad CRT48-31V Series Coverage: — A single part number covers the standard, High Speed, Electronic Steering, and electric-start variants of the 48-inch ride-on trowel lineup.
- Safeguards Engine Longevity: — A correctly functioning oil pressure switch triggers an immediate shutdown or warning when pressure drops, preventing catastrophic internal engine damage during finishing operations.
- Critical Safety Component: — As part of the engine protection circuit, a failed or out-of-spec switch can allow the engine to run unprotected under low-oil conditions — always replace with a verified OEM unit.
The oil pressure switch monitors engine oil pressure during operation and sends a signal to the machine's warning or shutdown system when pressure falls below a safe threshold. On ride-on trowel applications like the CRT48-31V, where the engine works hard under sustained load across large concrete slabs, this switch is the primary safeguard against oil starvation damage. When the switch fails — either by sticking closed and masking a real pressure drop, or by sticking open and causing nuisance shutdowns — it compromises both machine protection and operator confidence on the pour.
Part Details
| Part Number | 5000155156 |
|---|---|
| Old Part Number | 0155156 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Pressure Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 1220mm/48in Ride-on Trowel | CRT48-31V | 5000620476 |
| 1220mm/48in High Speed Ride-On Trowel | CRT48-31V-H | 5000009086 |
| Ride-on Trowel | CRT48-31V-E | 5000009481 |
| Ride-on Trowel | CRT48-31V-ES-E | 5000009482 |
| 1220mm/48in Ride-on Trowel, El ectronic Steering | CRT48-31V-ES | 5000009216 |
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.
