Multiquip 12876 Input Shaft Flange

The Multiquip 12876 is a genuine OEM Input Shaft Flange designed for a wide range of Multiquip and Whiteman walk-behind power trowels, including J36, JA, B46, BA, C, CA, and related series models. As an authentic Multiquip OEM component, the part is manufactured to the same specification as the original part, ensuring a direct, compatible installation with no guesswork on fitment. Compatible machines span a broad lineup including BH11C, BH90C, BS90C, J36E2, JH55C, JH90C, B46, CA4HC, CA4HM, BS46H11, BS46H90, PRO36, PRO46, and many additional Whiteman and international walk-behind trowel configurations. When critical driveline components need replacing, choosing the correct OEM part protects both machine performance and long-term reliability.

Key Features

• Genuine OEM Construction — Manufactured to original Multiquip specifications, ensuring the correct material grade, dimensional tolerancing, and shaft interface geometry for this input flange application.
• Direct Drop-In Compatibility — Engineered to mount directly to the input shaft position on supported walk-behind trowel models, aligning with existing fastener patterns and driveline components.
• Broad Trowel Series Coverage — Fits an extensive range of Multiquip and Whiteman walk-behind power trowels across the J36, JA, B46, BA, C, CA, and HDA-style lineups, including BH, JH, JS, BS, and PRO series machines.
• Driveline Integrity — A correctly seated input shaft flange maintains proper torque transfer between the engine and rotor assembly, keeping blade speed consistent and transmission components protected from misalignment stress.
• Verified Part Number — Part number this part is the authoritative Multiquip reference for this flange across all listed compatible trowel configurations, eliminating substitution risk when ordering.

The input shaft flange is a critical driveline component that connects the engine output to the trowel's gearbox or rotor drive system, transmitting rotational torque to spin the finishing blades. It serves as the primary mechanical interface between the power source and the working assembly, so any wear, cracking, or deformation in this flange directly disrupts torque transfer and can lead to blade speed inconsistency, vibration, or complete drive failure. Replacing a worn or damaged input shaft flange promptly with the correct OEM part restores proper driveline alignment and protects downstream transmission components from accelerated wear.

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.