Wacker Neuson 5000156464 Woodruff Key

The Wacker Neuson Woodruff Key is a genuine OEM component designed for an exceptionally wide range of Wacker Neuson equipment, including CT36 and CT48 concrete power trowels, VP and WP series single-direction vibratory plate compactors, GP2600 and GP4000 portable generators, PT2 and PT3 centrifugal trash pumps, and several diaphragm and dewatering pump models. As a genuine OEM part, the is produced to the exact material grade and dimensional specification of the original, ensuring a correct fit in every application it covers. This single part number spans compaction, concrete finishing, power generation, and fluid-handling equipment, making it a smart stocking item for dealers and fleet operators alike. Always cross-reference your machine's model and serial number against the fitment list before ordering.

Key Features

• Genuine OEM Dimensional Accuracy — Machined to the exact radius and depth profile required for proper seating in the shaft keyway, preventing fretting and rotational slippage.
• Broad Cross-Equipment Compatibility — A single part number covering CT36 and CT48 trowels, VP/WP vibratory plates, GP generators, PT/PDT/PDI/PG pumps, and BFS floor saws simplifies parts inventory across a mixed fleet.
• Direct Drop-In Installation — The Woodruff key profile seats into the crescent-shaped keyway on the crankshaft or drive shaft and locks the mating component in alignment without additional machining or fitting.
• Torque Integrity Under Load — A correctly fitted Woodruff key maintains the rotational alignment between shaft and hub; a worn or sheared key allows the driven component to slip, causing immediate loss of drive and potential secondary damage.
• OEM Traceability — Sourced directly through Wacker Neuson's parts supply chain, so the part number, material spec, and geometry match the original build record for your machine.

A Woodruff key is a small, semicircular metal key that sits in a curved slot milled into a rotating shaft, with half of the key protruding into a matching groove cut into the hub or pulley mounted on that shaft. Its purpose is to lock the two components together rotationally so that torque transfers cleanly from the shaft to the driven part — such as a clutch drum, recoil hub, impeller, or blade drive — without slippage. Because the key is made from a softer material than the shaft, it is designed to shear first if the drivetrain is overloaded, protecting the more expensive shaft from damage. When a Woodruff key wears, cracks, or shears, the mounted component begins to spin independently of the shaft, resulting in complete loss of drive function and, if left unaddressed, damage to the keyway itself.

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.