Multiquip 1141 Key 5/16 Sq x 2-5/8

The Multiquip 1141 Key 5/16 Sq x 2-5/8 is a genuine OEM component designed for Whiteman and International ride-on power trowel models including HTX44, STX55, HHN, HTN, and JWN series machines. As a direct OEM replacement sourced through Multiquip's authorized parts network, part 1141 is manufactured to the same specifications as the original, ensuring a correct, trouble-free installation. DHS Equipment stocks this part to help contractors get their concrete finishing equipment back in service fast. Confirm your model against the fitment list below before ordering to ensure compatibility.

Key Features

• Genuine OEM Construction: — Manufactured to Multiquip's original dimensional tolerances, ensuring the key seats correctly in the keyway without slop or stress on the shaft or hub.
• Direct Drop-In Replacement: — Matches the 5/16 square by 2-5/8 inch profile of the original, so it installs without machining, filing, or modification to the keyway.
• Broad Trowel Family Fitment: — Compatible with a wide range of Whiteman and International ride-on power trowel models including HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55Y6, STX55J6, HHN34TVD, HHN31V, HTN28K, HTN27K, and JWN series units.
• Shaft-to-Hub Power Transfer: — A correctly sized key maintains positive torque transmission between shaft and driven component; a worn or undersized key allows rotational slip that accelerates damage to both the shaft and mating hub.
• Verified OEM Part Number: — Order with confidence using Multiquip part number 1141, cross-referenced to the models listed above for accurate identification.

A shaft key is a small but critical drivetrain component that locks a rotating shaft to a gear, pulley, or hub so that torque is transferred evenly between them. On a ride-on power trowel, the key prevents the driven component from spinning independently on the shaft during the high-load, continuous-duty cycle of concrete finishing. When a key shears or wears down, the connected component loses drive, which can cause uneven blade rotation, loss of machine control, or accelerated wear on the surrounding shaft and bore surfaces. Replacing a damaged key promptly with the correct OEM part restores full power transfer and protects the more expensive components around it.

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.