Wacker Neuson 5100055840 Key 18 x 11 x 36

The Wacker Neuson Key 18 x 11 x 36 is a genuine OEM component designed for the HTC15 Trench Roller. Sourced directly through Wacker Neuson's authorized parts network, this key is manufactured to the exact dimensions and material specifications of the original, ensuring a correct, interference-free fit in the shaft and hub assembly. If you're servicing the drivetrain on an HTC15, using the correct is critical to restoring proper torque transfer and preventing premature wear on mating components.

Key Features

• Exact OEM Dimensions — Produced to the precise 18 x 11 x 36 mm specification, ensuring correct seating depth and zero slop in the keyway.
• Direct Drivetrain Replacement — Drops into the keyway slot with no filing or fitting required; slides cleanly between shaft and hub as originally assembled.
• HTC15 Trench Roller Fitment — Confirmed fitment for the Wacker Neuson HTC15 Trench Roller, so you can order with confidence.
• Genuine OEM Material Grade — Manufactured from the same hardened steel stock as the original, resisting deformation under the shear and compressive loads typical of compact roller drivetrains.
• Protects Surrounding Components — A correctly sized key prevents keyway wallowing in both the shaft and hub; a worn or undersized key accelerates damage to far more expensive parts.

A drive key is a small, rectangular piece of hardened steel that locks a rotating component — such as a sprocket, pulley, or drum drive hub — onto a shaft so the two turn together as a single unit. It sits in a machined slot called a keyway, cut into both the shaft and the bore of the mating component, and transmits torque between them. When a key wears, shears, or is installed in the wrong size, the shaft and hub slip against each other, causing vibration, loss of drive, and rapid damage to the keyway seats on both parts. Replacing a failed key promptly with the correct OEM part protects the integrity of the entire driveline assembly.

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.