Wacker Neuson 5002001040 Retaining Ring Ext 22mm x 1.2mm

The Wacker Neuson Retaining Ring Ext 22mm x 1.2mm is a genuine OEM component designed for the CT30, CT36, and CT48 series walk-behind concrete trowels. Sourced directly from Wacker Neuson, this retaining ring is an exact match for the original part — same dimensions, same material grade, and the same snap-fit engagement your machine was built with. It fits across a broad range of CT-series trowel configurations, including gas, diesel, electric, and variable-speed models in 30 in., 36 in., and 48 in. blade sizes. When it comes to a precision-fit fastening component like this, using the correct OEM part number ensures the ring seats properly and holds under the rotational loads and vibration typical of concrete finishing work.

Key Features

• Genuine OEM Dimensional Accuracy — Manufactured to the exact 22mm x 1.2mm specification, ensuring the ring seats flush in its groove without play or distortion under load.
• Snap-Fit Drop-In Replacement — Installs directly into the original groove using standard snap-ring pliers — no machining, filing, or sizing required.
• Broad CT-Series Compatibility — Fits CT30, CT36, and CT48 walk-behind trowels across gas (AGT/AGP), diesel (ADT/ADP), electric (EDT), and variable-speed (AVT/AVP) variants, covering both standard and CE-certified models.
• Secure Shaft and Component Retention — A correctly seated retaining ring prevents axial movement of rotating components; a worn or missing ring allows shaft migration that can lead to premature bearing or gear failure.
• Built for High-Vibration Environments — Manufactured from spring-grade steel to resist fatigue and loss of tension in the continuous vibration conditions generated during concrete finishing operations.

A retaining ring — also called a snap ring or circlip — is a fastening device that locks into a machined groove on a shaft or inside a bore to prevent components from moving axially along the shaft. In a walk-behind concrete trowel, retaining rings hold bearings, gears, and rotating assemblies in their correct positions, keeping critical tolerances intact during operation. When a retaining ring becomes fatigued, deformed, or lost, the components it was holding can shift, causing uneven wear, increased vibration, or mechanical failure of adjacent parts.

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.