Wacker Neuson 5000172985 Shaft Seal 1.625 X 2.252 X .313

The Wacker Neuson is a genuine OEM Shaft Seal 1.625 X 2.252 X.313 designed for CRT36 and CRT48 series ride-on concrete power trowels. Sourced directly from Wacker Neuson, this seal matches the exact dimensions and material specification of the original part fitted at the factory. It is confirmed compatible across a wide range of CRT36 and CRT48 variants, including the CRT36-24A, CRT36-25, CRT36-26A, CRTv36-26A, CRT48-31V, CRT48-33K, CRT48-34V, CRT48-35L, CRT48-35V, CRT48-37V, and CRT48-57K — covering standard, EU, Power Steer, and Dual-Fuel configurations. When a shaft seal fails, gearbox lubricant can escape and contaminants can enter, leading to accelerated wear on internal drivetrain components; replacing it with part restores the correct sealing integrity and protects surrounding components.

Key Features

• Exact OEM Dimensions: — Manufactured to the precise 1.625 x 2.252 x .313 inch specification, ensuring correct compression and sealing contact against the shaft and bore.
• Genuine Wacker Neuson Part: — Supplied as an authorized OEM component, matching the material grade and seal profile installed on the production line.
• Broad CRT Series Coverage: — Fits CRT36 and CRT48 ride-on trowel families across multiple model years and configurations, including standard, Power Steer, Dual-Fuel, and EU variants.
• Protects Gearbox Integrity: — A correctly seated shaft seal keeps gearbox oil in and abrasive concrete dust out, directly extending the service life of the trowel's drivetrain.
• Drop-In Replacement: — Installs into the original seal bore without modification, maintaining the correct interference fit and rotational alignment critical to trowel arm drive performance.

A shaft seal forms a dynamic barrier between a rotating shaft and its surrounding housing, preventing lubricant from leaking out of the gearbox while blocking water, dust, and concrete slurry from entering. On a ride-on concrete trowel, the shaft seal is subjected to continuous rotation under load and exposure to abrasive finishing residue — conditions that gradually degrade seal lip material over time. A worn or failed shaft seal allows gearbox oil to escape and contaminants to work their way into bearings and gear surfaces, causing accelerated wear that can result in costly drivetrain repairs if not addressed promptly.

Part Details

Compatibility & Fitment

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Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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