Multiquip 12017 Kill Relay

The Multiquip 12017 Kill Relay is a genuine OEM component designed for Whiteman and Multiquip ride-on power trowel series, including STX, HTX, LD, PRX, HHN, JWN, and JTO models. As a direct OEM replacement, this relay carries the same specifications as the original part, ensuring proper electrical function within the machine's ignition and shutdown circuit. Verified fitment covers a broad range of ride-on trowel platforms — confirm your model code against the compatibility list to ensure a correct match before ordering.

Key Features

• Correct Switching Specifications — Matched to the original relay's coil voltage and contact rating, ensuring the kill circuit activates and releases as designed.
• Genuine OEM Part — Sourced directly from Multiquip, this is the same relay installed at the factory — not a generic substitute with unknown switching tolerances.
• Broad Ride-On Trowel Fitment — Compatible with STX, HTX, LD60, PRX, HHN, JWN, JTO, and additional Whiteman ride-on power trowel series; verify your model code prior to ordering.
• Direct Plug-In Replacement — Designed to seat into the existing relay socket without modification to the wiring harness or mounting bracket.
• Critical Shutdown System Integrity — A failed kill relay can prevent the engine from shutting down on command or cause nuisance no-start conditions, making timely replacement essential for safe operation.

The kill relay is an electromechanical switching component within the trowel's ignition and engine shutdown circuit. When the operator activates the kill switch or an interlock condition is triggered, the relay opens the circuit to cut power to the ignition system, bringing the engine to a stop. A worn or failed relay can result in the engine refusing to shut down when commanded, or conversely, cause intermittent no-start conditions — either scenario creating a serious operational and safety concern on an active concrete finishing site. Replacing a faulty kill relay with the correct OEM part restores reliable, predictable shutdown behavior across all operating conditions.

For fitment questions or help confirming compatibility with your specific trowel model, contact the DHS Equipment parts team directly.

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.