Wacker Neuson 5100007316 Fan Type Lock Washer

The Wacker Neuson Fan Type Lock Washer is a genuine OEM component designed for LTN4Y and LTN5Y series light towers, including the LTN4Y, LTN4Y RH, LTN4Y 60 Hz, LTN4Y 120V/60Hz, LTN4Y SA, LTN5Y SA, and LTN5Ypk models. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original hardware used in production. Keeping the correct fastening hardware in place is essential to the mechanical integrity of these machines, and the delivers a direct, like-for-like replacement. Confirm your model number before ordering to ensure a correct fit.

Key Features

• Genuine OEM Locking Integrity — Manufactured to Wacker Neuson's original torque-retention specifications, ensuring the washer grips and holds under the vibration loads typical of light tower operation.
• Direct Hardware Replacement — The fan-type tooth profile mates with the original mating surface geometry, so installation follows the same procedure as the factory-fitted washer with no rework needed.
• Broad LTN Series Compatibility — Fits multiple LTN4Y and LTN5Y variants, including the LTN4Y RH, LTN4Y SA, LTN4Y 60 Hz, LTN4Y 120V/60Hz, LTN5Y SA, and LTN5Ypk configurations.
• Vibration Resistance — The serrated fan-tooth design bites into the mating surface to resist loosening caused by engine vibration and thermal cycling, helping fastened assemblies stay at the correct clamping load over time.
• Correct Part, Verified — Part number 5100007316 is the OEM-issued reference for this washer across the applicable LTN model range, giving you confidence you are ordering the right hardware the first time.

A fan type lock washer is a hardened fastening component with radially cut, outward-facing teeth around its outer edge. When a bolt or nut is tightened against it, those teeth bite into both the mating surface and the fastener bearing face, creating a mechanical grip that resists the rotational loosening caused by vibration and repeated thermal expansion and contraction. In a light tower application, where the generator and engine produce continuous vibration during operation, maintaining correct clamping force at critical fastening points is essential to structural integrity and consistent performance. A worn, missing, or incorrect lock washer allows fasteners to back off over time, which can lead to loose assemblies, misalignment, and accelerated wear on surrounding components.

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.