Multiquip 1238 Woodruff Key #25

The Multiquip 1238 is a genuine OEM Woodruff Key #25 designed for Whiteman and Multiquip walk-behind power trowels across a wide range of series, including J-Series, JA-Series, B-Series, BA-Series, CA-Series, HDA-Series, and BS-Series models. As an authorized Multiquip replacement part, the part meets the original design intent for proper shaft-to-hub alignment and torque transfer within the trowel drivetrain. Compatible models include BH90C, BH11C, J36, B46, CA4HC, CA4HM, HPHA36, and many additional walk-behind trowel configurations. Order with confidence knowing this is the same part shipped from the factory.

Key Features

• Genuine OEM Specification: — Manufactured to Multiquip's original design tolerances, ensuring correct key profile dimensions for a secure shaft-to-hub fit without rocking or slippage.
• Broad Series Compatibility: — Fits J-Series, JA-Series, B-Series, BA-Series, CA-Series, BS-Series, HDA-Series, and PRO-Series Whiteman and Multiquip walk-behind power trowels.
• Drop-In Installation: — Matches the original Woodruff key slot geometry on the trowel shaft, allowing direct installation without modification to the keyway.
• Drivetrain Integrity: — A correctly seated Woodruff key locks the blade spider or drive hub to the shaft, preventing rotational slippage that leads to uneven blade pitch and loss of finishing control.
• Verified Part Number: — Part number this part is the factory-assigned Multiquip reference, making cross-referencing against your machine's parts manual straightforward and accurate.

A Woodruff key is a small, semi-circular metal key that seats into matching slots cut into a shaft and a mating hub or gear. Its role is to lock the two components together rotationally, ensuring that torque from the engine and gearbox is transferred cleanly to the trowel blades without slippage. When a Woodruff key shears, wears, or falls out, the hub can spin freely on the shaft — resulting in loss of blade drive, inconsistent blade pitch, or complete loss of trowel function. Replacing a damaged key promptly with the correct OEM part restores proper power transfer and protects the surrounding shaft and hub from further wear damage.

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.