The Wacker Neuson is a genuine OEM Lock Nut 5/8-11 Hex Center designed for the CRT36-24A, CRT36-25, CRT36-26A, and CRTv36-26A series ride-on concrete trowels. Sourced directly from Wacker Neuson, this part matches the original specification used on the assembly line — ensuring a correct fit without guesswork. The is the exact fastener called out in the OEM parts documentation for these 36-inch ride-on trowel models, including both standard and Wheel Kit configurations. When you need to restore secure, properly torqued fastening on your trowel, this is the part to reach for.
Key Features
- Genuine OEM Fastener Grade — Manufactured to the thread pitch and hardness specification of the original 5/8-11 center hex lock nut, ensuring proper torque retention under the vibration loads common to ride-on trowel operation.
- Center Hex Locking Design — The center hex configuration seats and locks positively against the mating surface, resisting loosening during continuous trowel head rotation and machine movement.
- Direct-Fit for CRT36 Series Trowels — Confirmed fitment across CRT36-24A, CRT36-25, CRT36-26A, and CRTv36-26A models, including standard and Wheel Kit variants — no modification to the host assembly required.
- Maintains Clamping Force Where It Counts — A worn or missing lock nut on a ride-on trowel can allow critical fastened joints to back off during operation, leading to blade float issues, vibration, or component damage. Replacing with the correct OEM part restores full clamping integrity.
- Part Number Verified — 5000165084 cross-referenced against Wacker Neuson parts documentation for the CRT36 family, so you can order with confidence that this is the correct lock nut for your machine.
A lock nut is a fastener engineered to resist self-loosening when exposed to vibration, torque, and dynamic loads — conditions that are constant during ride-on trowel operation. The center hex design of the 5000165084 allows it to be driven and seated using standard hex tooling while the locking mechanism maintains clamping force across the service interval. When a lock nut fails, backs out, or is missing entirely, the joint it secures can shift or separate, potentially affecting blade pitch, rotor alignment, or structural integrity of the trowel head assembly. Replacing a damaged or lost lock nut promptly with the correct OEM part keeps the trowel performing as designed and prevents secondary damage to surrounding components.
Part Details
| Part Number | 5000165084 |
|---|---|
| Old Part Number | 0165084 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Nut 5/8-11 Hex Center |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 915mm/36in Ride-on Trowel w/ W heel Kit | CRT36-25 | 5000620295, 5000620804 |
| 915mm/36in Ride-on Trowel w/ W heel Kit | CRT36-24A | 5000620299, 5000620802 |
| CRT36-26A Trowel w/Wheel Kit | CRT36-26A | 5000621000, 5000621002 |
| CRTv 36-26A Trowel, w/Wheel Kit | CRTv36-26A | 5200008544, 5200008546 |
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.