Wacker Neuson 5000074986 Cap Plug #W20 Taper Plastic Red

The Wacker Neuson Cap Plug #W20 Taper Plastic Red is a genuine OEM component designed for the CT and CRT series walk-behind and ride-on concrete power trowels. As a direct OEM replacement, is manufactured to the same specifications as the original part, ensuring a correct installation without the guesswork. This cap plug fits an extensive range of Wacker Neuson trowel models, including the CT30, CT36, and CT48 walk-behind families as well as the CRT36 and CRT48 ride-on series. Keeping small sealing and protective components like this one in serviceable condition is an easy step toward maintaining the integrity of your machine.

Key Features

• Genuine OEM Material Grade — Red plastic construction matched to the original specification for correct seating, sealing pressure, and resistance to concrete slurry and moisture exposure.
• Tapered Profile for Positive Seating — The #W20 taper geometry locks securely into the port opening without tools, preventing loosening during trowel operation.
• Broad Trowel Family Coverage — Compatible across the CT30, CT36, and CT48 walk-behind series and the CRT36 and CRT48 ride-on trowel series, covering both standard and variable-speed variants.
• Port Protection During Operation and Storage — Seals exposed openings against concrete dust, debris, and moisture ingress, protecting internal passages and surfaces from contamination.
• Verified OEM Part Number — Sourced directly from Wacker Neuson as part number 5000074986, eliminating fitment ambiguity when ordering a like-for-like replacement.

A taper plug cap serves as a protective closure for open ports, fluid passages, or unused fittings on the machine. On concrete trowels, exposed openings are particularly vulnerable to fine cement slurry, water, and grit — all of which can work into cavities and cause wear or corrosion over time. A missing or damaged cap plug leaves those points unprotected; replacing it promptly with the correct OEM part maintains the integrity of the surrounding components and prevents contamination that can lead to more costly repairs down the line.

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.

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.