Multiquip 12875 Gearbox Cover

The Multiquip 12875 is a genuine OEM Gearbox Cover designed for a wide range of Multiquip and Whiteman walk-behind power trowels, including J36, B46, CA, BS, BH, JA, JS, and PRO series models. As a direct OEM replacement, this cover is manufactured to the same specifications as the original component installed at the factory, ensuring a proper fit without modification. DHS Equipment supplies this part with verified part number accuracy so you can order with confidence. Compatible models include BH11C, BH90C, BS90C, JH55C, JH90C, B46, B46S90, CA4HC, CA4HM, J36, PRO36, PRO46, and many additional walk-behind trowel configurations across the Multiquip and Whiteman lineup.

Key Features

• Genuine OEM Construction — Manufactured to original design tolerances, ensuring the cover seats correctly against the gearbox housing and maintains a secure, sealed fit.
• Direct Drop-In Replacement — Engineered to replace the original Gearbox Cover on J36, B46, CA, BS, BH, JS, JA, and PRO series trowels with no rework or adaptation needed.
• Broad Trowel Series Compatibility — Covers an extensive range of Whiteman and Multiquip walk-behind power trowel models, from compact 36-inch units to larger 46-inch configurations.
• Protects Internal Gearbox Components — Keeps lubricant sealed in and contaminants such as concrete slurry, water, and debris out — a cracked or missing cover accelerates gear wear and leads to gearbox failure.
• Verified Multiquip Part Number — Part number this part is cross-referenced directly against Multiquip OEM documentation, so you receive the correct cover for your machine every time.

The gearbox cover on a walk-behind power trowel serves as the primary protective enclosure for the gear set that transfers engine power to the trowel blades. It keeps gear oil contained within the housing and prevents concrete dust, slurry, and moisture from entering the gearbox internals. A damaged, cracked, or missing gearbox cover allows lubricant to escape and contaminants to enter, leading to accelerated gear wear, overheating, and ultimately gearbox seizure — taking the trowel out of service at the worst possible time on a finishing pour.

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.