The Multiquip 530023 is a genuine OEM Locking Pin Spring designed for Whiteman and Essick plaster and mortar mixers across the WM63, WM70, and WM90 series, as well as EM70 and EM90 series mixers and MS-series masonry saws. Sourced directly from Multiquip, this part meets the original engineering specifications for the machines it serves. Whether you are servicing a WM70, WM90, EM90, or a related model in the lineup, part 530023 installs as a direct replacement with no guesswork involved. DHS Equipment stocks this genuine OEM component so you can get your mixer or saw back to work without delays.
Key Features
- Genuine OEM Spring Tension Manufactured to the original spring rate and coil geometry specified for Multiquip mixer and masonry saw locking pin assemblies, ensuring consistent retention force across the full range of compatible models.
- Direct Drop-In Replacement Engineered to seat and retain exactly as the original, fitting into the locking pin pocket without modification across WM and EM series mixer frames and MS-series saw decks.
- Broad Model Coverage Compatible with WM63, WM70, and WM90 Whiteman mixers, EM70 and EM90 Essick plaster and mortar mixers, and MS-63, MS-70, and MS-93 masonry saws — one part number across a wide installed base.
- Positive Pin Engagement A properly functioning locking pin spring holds the pin firmly in the engaged position, preventing unintended drum or blade release during operation and keeping the machine in the correct working configuration.
- Operational Safety Relevance The locking pin spring is part of the retention system that keeps rotating or adjustable assemblies secured in position. A fatigued or broken spring can allow the pin to back out under vibration, creating an unsecured condition during use.
The locking pin spring applies constant tension to keep the locking pin seated in its engaged position on mixer drum latches and masonry saw adjustment mechanisms. Without adequate spring force, the pin can drift or disengage under the vibration and load of normal operation, allowing unsecured movement of the retained assembly. When the spring fatigues, weakens, or breaks, the locking pin loses positive retention and the operator may experience the pin backing out unexpectedly — a sign that the spring should be replaced promptly to restore secure, controlled operation.
Part Details
| Part Number | 530023 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Locking Pin Spring |
Compatibility & Fitment
| Name | Models |
|---|---|
| Essick Mixers | EM70P/S, EM70SLF, EM90P/S, EM90SLF, EM900SD |
| ESSICK Plaster-Mortar Mixers | EM-70P, EM-70S, EM90PE, EM90PH8, EM90SE, EM90SH8 |
| Masonry Saws | MS-63, MS-70, MS-93 |
| Mixers | EM-90P, EM-90S, WM-70P, WM-70S, WM-90P, WM-90S, WM63E, WM63H5, WM63H8, WM63SLF, WM70PE, WM70PH5, WM70PH8, WM70PLF, WM70S/P, WM70SE, WM70SH5, WM70SH5C, WM70SH8, WM70SH8C, WM70SLF, WM90PE, WM90PH8, WM90PLF, WM90S/P, WM90SE, WM90SH8, WM90SLF |
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.
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