The Multiquip EM505723 is a genuine OEM Cotter Pin 5/32" x 1-1/2" designed for the LS series hydraulic-driven concrete pump lineup, including the LS300, LS300G, LS300GK, LS300P, LS400, LS500, LS600, LS600P, LS40D, LS40TD, LS50TD, and LS60TD. Sourced directly from Multiquip, this cotter pin matches the original specification for a straight-in replacement with no guesswork on sizing or fit. Keeping fastening hardware like this at spec is essential to maintaining the mechanical integrity of your pump's linkage and retention points.
Key Features
- Genuine OEM Specification: — Exact diameter and length (5/32" x 1-1/2") match the original hardware used on LS series concrete pumps, ensuring correct retention force and pin engagement depth.
- Direct-Install Replacement: — Installs into existing pin bores without modification, preserving the designed clamping and locking geometry of the assembly.
- Broad LS Series Coverage: — Confirmed fitment across LS300, LS300G, LS300GK, LS300P, LS400, LS500, LS600, LS600P, LS40D, LS40TD, LS50TD, and LS60TD concrete pump models.
- Structural Retention Assurance: — A correctly installed cotter pin prevents unintended movement of pinned joints and linkage components; a missing or damaged pin can lead to component loosening under load and operational failure.
- Safety-Critical Fastener: — Cotter pins serve as a positive locking device on pinned connections throughout the pump mechanism; using the correct OEM-spec pin maintains the intended safety margin of the fastening system.
A cotter pin is a simple but critical fastener used to lock a clevis pin, axle pin, or bolt in place, preventing it from backing out during machine operation. On hydraulic concrete pumps like the LS series, these pins secure linkage arms, pivot points, and other load-bearing connections that cycle repeatedly under pressure. When a cotter pin is missing, bent, or the wrong size, the retained component can shift or disengage entirely, leading to mechanical failure or a safety hazard during pumping operations.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment team before ordering.
Part Details
| Part Number | EM505723 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Cotter Pin 5/32" x 1-1/2" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300G |
| Mayco Pumps | LS300GK |
| Mayco Pumps | LS300P |
| Mayco Pumps | LS600P |
| Mayco Pumps | LS300 |
| Mayco Pumps | LS600 |
| Mayco Pumps | LS50TD |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS400 |
| Mayco Pumps | LS40D |
| Mayco Pumps | LS60TD |
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.
