The Wacker Neuson Relief Valve is a genuine OEM component designed for CRT48 and CT48 series concrete power trowels, including ride-on and walk-behind configurations. Sourced directly from Wacker Neuson, this relief valve is manufactured to the exact specification of the original part it replaces, ensuring a correct installation with no guesswork. Compatible models include the CRT48-34V, CRT48-31V, CRT48-31V-H, CRT48-31V-E, CRT48-31V-ES, CRT48-31V-ES-E, and CT48-13A-V trowels. When your hydraulic system needs attention, specifying the correct OEM part number — — is the surest way to restore proper system pressure and protect downstream hydraulic components.
Key Features
- Calibrated Pressure Relief: — Manufactured to the precise cracking pressure required by the CRT48 and CT48 hydraulic circuit, preventing over-pressurization that can damage pumps, motors, and hoses.
- Genuine OEM Part: — Supplied by Wacker Neuson as an authorized replacement, built to the same material and dimensional standards as the valve installed at the factory.
- Direct-Swap Installation: — Matches the original port size, thread specification, and flow rating of the factory-fitted valve, allowing straightforward removal and reinstallation in the hydraulic manifold.
- Broad CRT48 and CT48 Coverage: — A single part number covers multiple variants across the 48-inch ride-on trowel lineup, including standard, high-speed, electronic steering, and electric-drive configurations, as well as the CT48-13A-V walk-behind trowel.
- Hydraulic System Protection: — A functioning relief valve keeps hydraulic pressure within the safe operating range, enabling consistent rotor speed and smooth trowel blade engagement across the finishing pass.
A hydraulic relief valve is a pressure-control device that acts as a safety mechanism within the trowel's hydraulic circuit. It opens at a set pressure threshold to divert excess fluid back to the reservoir, preventing the system from exceeding safe operating limits. On a ride-on or walk-behind concrete trowel, the hydraulic system drives the rotor gearboxes and, on some models, the steering actuators — so a stuck-closed or worn relief valve can cause overheating, erratic rotor behavior, or component damage, while a valve that opens prematurely will result in sluggish response and loss of finishing performance.
Part Details
| Part Number | 5000158217 |
|---|---|
| Old Part Number | 0158217 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Relief Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 1220mm/48in Ride-on Trowel | CRT48-34V | 5000620805, 5000620075, 5200004935 |
| 1220mm/48in Ride-on Trowel | CRT48-31V | 5000620476 |
| CT48-13A-V Trowel | CT48-13A-V | 5000009452, 5000620836 |
| 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.
