The Multiquip 13339 is a genuine OEM External Shakeproof Washer 5/16 designed for LT6K, MLT25DCA, HTN27K, and HTN28K equipment. As a direct Multiquip OEM part, 13339 meets the same material and dimensional standards as the original hardware installed at the factory. This washer is confirmed to fit both the Towable Light Tower and Whiteman Ride-On Power Trowel families, making it a versatile fastening component across multiple Multiquip product lines. When it comes to retaining fasteners and preventing loosening under vibration, using the correct OEM spec hardware ensures the assembly performs as intended.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Multiquip's exact material and hardness specifications for a 5/16 external shakeproof washer, ensuring proper locking grip under load.
- Direct Drop-In Replacement — Matches the original 13339 profile and tooth configuration so it seats correctly against mating fastener surfaces without rework.
- Broad Multiquip Fitment — Confirmed for LT6K and MLT25DCA Towable Light Towers, and HTN27K and HTN28K Whiteman Ride-On Power Trowels.
- Vibration Resistance — The external shakeproof tooth design bites into the bearing surface to resist loosening caused by continuous machine vibration during operation.
- Fastener System Integrity — Using the correct OEM washer maintains the clamping force and torque retention of the surrounding fastener assembly, preventing costly joint failures.
An external shakeproof washer is a toothed locking washer that grips the surface beneath a fastener head or nut, preventing it from backing off under vibration and dynamic loading. On equipment like light towers and ride-on power trowels — both of which generate sustained mechanical vibration during use — even small fastener joints depend on properly rated locking hardware to stay secure. When a shakeproof washer wears flat, corrodes, or is omitted during service, fasteners can gradually loosen, leading to structural play, noise, and potential component damage over time.
For fitment questions or to confirm compatibility with your specific machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 13339 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | External Shakeproof Washer 5/16 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Towable Towers | LT6K |
| Towable Towers | MLT25DCA |
| Whiteman Ride-On Power Trowels | HTN27K |
| Whiteman Ride-On Power Trowels | HTN28K |
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.
