Wacker Neuson 5000151055 Key 8X7X70 (Sq Ends)

The Wacker Neuson Key 8X7X70 (Sq Ends) is a genuine OEM component designed for the CT30, CT36, and CT48 series walk-behind concrete power trowels. As a direct OEM replacement sourced through the Wacker Neuson parts network, the is manufactured to the exact dimensions and material tolerances required for proper drivetrain engagement. This key fits an extensive range of CT-series trowel configurations — including gasoline, diesel, electric, and variable-speed models across both 36-inch and 48-inch rotor sizes — making it a versatile stock item for contractors and service shops running mixed fleets.

Key Features

• OEM Dimensional Accuracy — Cut to the exact 8x7x70mm square-end specification, ensuring correct torque transfer without slippage or play in the keyway.
• Direct Drop-In Installation — Matches the original keyway geometry on CT-series trowel driveshafts; seats flush without filing or shimming.
• Broad CT-Series Compatibility — Fits CT30, CT36, and CT48 walk-behind trowel models including AGP, ADP, AGT, ADT, AVP, AVT, BDT, and numbered suffix variants across gasoline, diesel, and electric configurations.
• Drivetrain Integrity — A correctly fitted key locks the rotor drive components in proper rotational alignment; a worn or sheared key causes blade-speed irregularities and accelerated shaft wear.
• Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, ensuring the same steel grade and finish spec used in original assembly.

A woodruff or parallel drive key like the 5000151055 is a small but load-bearing component that locks a rotating shaft to a hub, gear, or sprocket, preventing the two from spinning independently under torque. In a walk-behind concrete trowel, the key transmits engine or motor power through the drivetrain to the rotor blades — if the key shears or wears loose in its keyway, blade rotation becomes erratic or stops entirely, leaving the concrete surface unfinished. Replacing a damaged key promptly with the correct OEM part restores full power transfer and protects the mating shaft and hub from secondary 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.