The Wacker Neuson is a genuine OEM O-Ring 7-1/4 X 1/8-70 designed for the CRT36 and CRT48 series ride-on concrete trowels. Sourced directly from Wacker Neuson, this seal is manufactured to the exact material compound and dimensional tolerances specified for these machines, ensuring a proper seal without improvisation or modification. The covers an extensive range of CRT models, including the CRT36-24A, CRT36-25, CRT36-26A, CRT48-31V, CRT48-33K, CRT48-34V, CRT48-35L, CRT48-35V, CRT48-37V, CRT48-57K, and their associated variants. When a fluid or pressure seal is compromised, a like-spec replacement is the only reliable corrective — this genuine OEM part restores the original sealing performance your machine was built around.
Key Features
- Exact OEM Compound and Dimensions — Manufactured to the original 70-durometer specification with a 7-1/4 in. inner diameter and 1/8 in. cross-section, matching the sealing groove geometry precisely.
- Genuine Wacker Neuson Part — Supplied as a genuine OEM component, carrying the same material grade and dimensional spec as the seal installed at the factory.
- Broad CRT Series Coverage — Fits a wide range of 36 in. and 48 in. ride-on concrete trowel models, including CRT36-24A, CRT36-25, CRT36-26A, CRT48-31V, CRT48-33K, CRT48-34V, CRT48-35L, CRT48-35V, CRT48-37V, CRT48-57K, and CRTv36-26A variants.
- Sealing Integrity Under Operating Pressure — A correctly seated O-ring maintains fluid containment across hydraulic or fluid circuits; a worn or deformed seal leads to leaks that degrade system pressure and trowel performance.
- Fluid System Safety — A failed hydraulic or fuel-circuit seal can create a leak path near hot engine components or moving parts; replacing with the correct-spec O-ring restores safe, leak-free operation.
An O-ring is a precision-molded elastomeric seal that sits in a machined groove between two mating surfaces or fittings, creating a pressure-tight barrier that prevents fluid or air from escaping a circuit. In ride-on concrete trowels like the CRT36 and CRT48 series, O-rings are used throughout hydraulic drive circuits, engine fluid connections, and ancillary plumbing — anywhere a static or dynamic seal is required. When an O-ring ages, hardens, or is damaged during service, the resulting leak can cause hydraulic pressure loss, fluid contamination, or external weeping that worsens over time; replacing it promptly with the correctly sized and durometer-rated part is the fastest path back to full, clean operation.
Part Details
| Part Number | 5000115928 |
|---|---|
| Old Part Number | 0115928 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring 7-1/4 X 1/8-70 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CRT48-35L Trowel | CRT48-35L | 5000620113, 5000620806 |
| CRT48-35V | CRT48-35V | 5000620112 |
| CRT48-35V | CRT48-35V EU | 5000620807 |
| 915mm/36in Ride-on Trowel | CRT36-25 | 5000620115, 5000620295, 5000620803, 5000620804 |
| 1220mm/48in Ride-on Trowel | CRT48-34V | 5000620805, 5000620075, 5200004935 |
| 1220mm/48in Ride-on Trowel | CRT48-31V | 5000620476 |
| 915mm/36in Ride-On Trowel | CRT36-24A | 5000620080, 5000620299, 5000620801, 5000620802 |
| 1220mm/48in High Speed Ride-On Trowel | CRT48-31V-H | 5000009086 |
| 1220mm/48in Low Speed Ride-On Trowel | CRT48-25K-L | 5000009084 |
| 1220mm/48in High Speed Ride-On Trowel | CRT48-25K-H | 5000009085 |
| 915mm/36in Ride-On High Speed Trowel | CRT36-23K-H | 5000009083 |
| 915mm/36in Ride-On High Speed Trowel | CRT36-24A-H | 5000009232 |
| CRT48-35L-PS | CRT48-35L-PS | 5000620704 |
| CRT48-35L-PS | CRT48-35L-PS EU | 5000620900 |
| Ride-on Trowel | CRT48-31V-E | 5000009481 |
| Ride-on Trowel | CRT48-31V-ES-E | 5000009482 |
| Ride-on Trowel | CRT36-24A-E | 5000009483 |
| CRT36-26A Trowel w/Wheel Kit | CRT36-26A | 5000621000, 5000620999, 5000621001, 5000621002 |
| 1220mm/48in Ride-on Trowel, El ectronic Steering | CRT48-31V-ES | 5000009216 |
| CRT48-33K | CRT48-33K | 5200002353 |
| CRT48-33K Trowel, Dual-Fuel | CRT48-33K DF | 5200007686, 5200007687 |
| 915mm/36in Ride-On High Speed Trowel | CRT36-25K-H | 5000620027 |
| CRT48-33K | CRT48-33k | 5200002354 |
| CRTv 36-26A Trowel, w/Wheel Kit | CRTv36-26A | 5200008544, 5200008545, 5200008546 |
| CRT48-57K Trowel, Power Steer | CRT48-57k-PS | 5200018779 |
| CRT48-37V Trowel | CRT48-37V | 5100024209 |
| CRT48-57K Trowel | CRT48-57K-MS | 5100018892 |
| CRT48-37V Trowel, Power Steer | CRT48-37V-PS | 5100024291 |
| CRT48-57K-PS | CRT48-57k-PS EU | 5200018820 |
| CRT48-35V, Power Steer | CRT48-35V-PS | 5200016909 |
| CRT48-37V | CRT48-37V EU | 5100024290 |
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.
