Wacker Neuson 5000115927 O-Ring 2-3/8 X 3/32-70

The Wacker Neuson is a genuine OEM O-Ring 2-3/8 X 3/32-70 designed for the CRT36 and CRT48 series ride-on concrete trowels. As a factory-sourced component, the delivers the exact material compound, cross-section diameter, and stretch tolerance Wacker Neuson specifies for these machines. It is confirmed to fit a wide range of CRT configurations, including 36-inch and 48-inch models, standard and high-speed variants, power steer and dual-fuel builds, and both domestic and EU-spec units.

Key Features

• Exact OEM Compound and Sizing — Sourced directly from Wacker Neuson, this O-ring is manufactured to the precise durometer rating and dimensional tolerances called out in the original design, ensuring the correct compression seal every time.
• Drop-In Seal Replacement — The 2-3/8 x 3/32 profile seats directly into the existing groove without stretching, trimming, or adapting — the profile matches the OEM groove geometry on CRT36 and CRT48 assemblies.
• Wide CRT Series Coverage — A single part number covers CRT36-24A, CRT36-25, CRT36-26A, CRT48-31V, CRT48-33K, CRT48-34V, CRT48-35L, CRT48-35V, CRT48-37V, CRT48-57K, and their power steer, dual-fuel, electronic steering, and EU variants.
• Leak-Free Hydraulic or Fluid Circuit Integrity — A compromised O-ring in a ride-on trowel allows fluid bypass or external leakage, causing pressure loss and erratic trowel arm behavior. The correct OEM seal restores full circuit integrity and consistent rotor control.
• Fluid System Safety — Hydraulic fluid leaks pose a slip hazard on the finishing deck and can lead to unexpected loss of steering or rotor control. Replacing a worn or extruded O-ring with the correct 5000115927 keeps the fluid system properly contained.

An O-ring forms a static or dynamic pressure seal between two mating surfaces — such as a hydraulic fitting, valve body, or pump port — by compressing within a machined groove to block fluid passage. In ride-on concrete trowels like the CRT36 and CRT48 series, O-rings are critical to maintaining hydraulic pressure across the rotor drive and steering circuits. When an O-ring degrades, flattens, or takes a set from heat cycling, it loses its ability to seal, resulting in internal bypass or visible fluid leaks that reduce system pressure and compromise trowel performance. Replacing a failed seal promptly with the correct OEM part restores full circuit pressure and prevents secondary damage to pumps, valves, and hoses.

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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