Multiquip 12987 Seat Frame W/A HHN 31/34V

The Multiquip 12987 Seat Frame W/A HHN 31/34V is a genuine OEM seat frame welded assembly designed for the HHN31V and HHN34TVD Whiteman ride-on power trowels. Sourced directly from Multiquip, this is the exact component used in original production, ensuring a correct, direct-fit replacement for your machine. It is confirmed compatible with the HHN31V and HHN34TVD models, so you can order with confidence knowing it will install as intended. DHS Equipment stocks genuine Multiquip OEM parts like the 12987 to keep your trowels running and your operators seated safely.

Key Features

• Genuine OEM Welded Assembly — Manufactured to Multiquip's original production specifications, meaning the weld joints, mounting geometry, and material grade match the frame your machine was built with.
• Direct Bolt-On Replacement — Engineered to align with the existing seat mounting points on the HHN31V and HHN34TVD, so installation follows the original service procedure without fabrication or adaptation.
• Confirmed Fitment for HHN31V and HHN34TVD — This assembly is specifically designated for Whiteman HHN31V and HHN34TVD ride-on mechanical trowels; always verify your model before ordering.
• Structural Integrity for Operator Support — A sound seat frame keeps the operator securely positioned and in control of the machine during finishing passes; a cracked or compromised frame creates instability and should be replaced promptly.
• Operator Safety Compliance — The seat frame is a load-bearing operator contact point on a ride-on trowel; using a genuine OEM welded assembly ensures the structural rating and attachment points meet the original design intent for operator safety.

The seat frame welded assembly is the structural base that anchors the operator's seat to the chassis of the ride-on trowel. It bears the operator's weight and absorbs the vibration and movement transmitted through the machine during operation, maintaining a stable and controlled riding position. When the seat frame cracks, bends, or corrodes, it compromises operator positioning and can create unsafe operating conditions — making prompt replacement with the correct OEM assembly essential.

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.