Wacker Neuson 5000073580 Shaft Seal 30 X 60 X 8 2B

The Wacker Neuson Shaft Seal 30 X 60 X 8 2B is a genuine OEM component designed for the CT30, CT36, and CT48 series walk-behind concrete power trowels. As a direct OEM replacement, part is manufactured to the original design specification, ensuring a correct drop-in installation with no guesswork on sizing or fitment. This seal serves the full CT series lineup, covering 30-inch, 36-inch, and 48-inch models in gas, diesel, electric, and variable-speed configurations. When your trowel shows signs of shaft seal wear — such as oil weeping around the rotor shaft or contamination entering the gearbox — replacing it promptly with the correct OEM part keeps the drivetrain protected and the machine finishing concrete as intended.

Key Features

• OEM Lip Seal Integrity — Manufactured to the original dimensional specification (30 x 60 x 8 mm, double-lip 2B profile), ensuring the correct interference fit and sealing pressure around the shaft.
• Broad CT Series Coverage — Fits Wacker Neuson CT30, CT36, and CT48 walk-behind trowel models across gas, diesel, electric, and variable-speed variants, including CE-marked configurations.
• Direct Shaft Drop-In — Dimensioned to seat correctly in the original housing bore without machining or shimming, replacing the worn seal with the same geometry as the factory-installed part.
• Drivetrain Contamination Protection — A functioning shaft seal keeps lubricant inside the gearbox and debris out; a failed seal allows oil loss and abrasive ingress that accelerate bearing and gear wear.
• Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, part number 5000073580 carries the full OEM quality assurance of the original equipment manufacturer.

A shaft seal is a precision rubber and metal ring that fits between a rotating shaft and its stationary housing to prevent lubricant from escaping and contaminants from entering. In a walk-behind concrete trowel, the rotor shaft seal sits at the point where the main drive shaft exits the gearbox, keeping gear oil sealed in and concrete slurry, water, and grit sealed out. When the seal lip wears, hardens, or takes damage, oil begins to leak from the gearbox and abrasive material can work its way inside, leading to premature wear of the gears and bearings. Replacing a worn shaft seal at the first sign of leakage is one of the most cost-effective ways to protect the trowel's drivetrain and maintain consistent finishing performance on the slab.

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.