Wacker Neuson 5002004639 Internal Retaining Ring 42Mmx1.7Mm

The Wacker Neuson Internal Retaining Ring 42Mmx1.7Mm is a genuine OEM component designed for a wide range of Wacker Neuson vibratory trench rollers and electric breakers. As a direct OEM replacement, this retaining ring is manufactured to the exact tolerances required to keep rotating and reciprocating assemblies properly secured during operation. Compatible fitment spans the RT82-SC2, RT56-SC2, RT82-SC, RT56-SC, RTLx-SC3, RTKx-SC3, RTx-SC2, RT820, RT560, RD25 series, as well as the EHB and EH series electric hammers and breakers. Sourcing part number directly ensures you receive the correct ring specification without guesswork.

Key Features

• Exact OEM Dimensions — Manufactured at the precise 42mm bore diameter and 1.7mm groove width Wacker Neuson specifies, ensuring correct seating depth and retention force.
• Secure Component Retention — Keeps shafts, bearings, and internal assemblies locked in their designed axial position, preventing play, drift, or premature wear of adjacent components.
• Drop-In Installation — Designed to snap directly into the machined groove of the original application using standard internal circlip pliers — no reworking of housings or bores required.
• Broad Fitment Coverage — A single part number serves the RT82-SC2, RT56-SC2, RTLx-SC3, RTKx-SC3, RTx-SC2, RT820, RT560, RD25 roller series, and EHB/EH electric breaker and hammer families.
• Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, this ring meets the same material grade and spring-back characteristics as the original, supporting the long-term integrity of the assembly it secures.

An internal retaining ring — also called an internal circlip — fits into a machined groove inside a bore or housing to lock a shaft, bearing, or other component in place axially. It works by exerting outward spring tension against the groove walls, preventing the retained part from shifting or walking out under load or vibration. In high-vibration equipment like trench rollers and electric breakers, a worn, deformed, or missing retaining ring allows internal components to move out of position, which can accelerate bearing wear, cause noise and vibration, and ultimately lead to more significant mechanical failure if left unaddressed.

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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