Multiquip 20932 Gearbox Helical Seal Kit

The Multiquip 20932 Gearbox Helical Seal Kit is a genuine OEM seal kit designed for HHN-series and HHXD-series ride-on power trowels, including the HHXDF4, HHXDF5, HHNG5, HHXD5, HHN34TVD, HHN31V, and EHHNK5. Sourced directly from Multiquip, this kit delivers the exact seals needed to restore a properly sealed gearbox on these large-format, heavy-duty finishing machines. Keeping the gearbox sealed and lubricated is critical to trowel performance, and using the correct OEM kit ensures every seal matches the original design tolerances. DHS Equipment stocks this part so you can get your trowel back to work without delays.

Key Features

• Genuine OEM Seal Materials — Each seal in this kit is manufactured to the same material grade and compression specification as the original, ensuring proper gearbox retention without leakage.
• Complete Kit for the Helical Gearbox — Includes all seals needed for the helical gearbox assembly, so you can complete the job in a single service without sourcing individual components separately.
• Direct Fitment for HHN and HHXD Series — Engineered specifically for HHXDF4, HHXDF5, HHNG5, HHXD5, HHN34TVD, HHN31V, and EHHNK5 ride-on power trowels.
• Protects Gearbox Lubrication — Worn or damaged seals allow gear oil to escape and contaminants to enter, accelerating internal gear wear and leading to costly gearbox failure if left unaddressed.
• Verified Multiquip Part Number — Order with confidence knowing 20932 is the correct OEM reference for this gearbox seal application on these trowel models.

The helical gearbox on HHN-series ride-on trowels transfers engine power to the finishing blades, and its internal seals are what keep gear oil contained within the housing while blocking out water, concrete slurry, and debris. When these seals degrade or fail, oil loss leads to increased friction, elevated operating temperatures, and accelerated wear on the gear teeth and bearings inside the gearbox. Replacing the seals with the Multiquip 20932 Gearbox Helical Seal Kit restores the integrity of the gearbox and prevents a minor maintenance issue from developing into a full gearbox replacement.

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.