The Multiquip 804602 is a genuine OEM Lock Washer 3/8 Grade 8 designed for LS300G and LS300GK hydraulic-driven concrete pumps. As a direct OEM replacement, 804602 meets the original engineering specifications Multiquip set for these machines, so you can install with confidence. This washer is confirmed to fit both the LS300G and LS300GK models, making it a straightforward sourcing decision when servicing either unit.
Key Features
- Grade 8 Hardness Rating — High-strength Grade 8 specification delivers the clamping resistance needed in the demanding operating environment of a concrete pump.
- Genuine OEM Part — Sourced directly from Multiquip, this washer matches the original fastener hardware used in LS300G and LS300GK production builds.
- Direct Hardware Match — 3/8-inch sizing installs into the existing fastener positions without any reworking of surrounding hardware or fasteners.
- Confirmed Fitment — Verified for LS300G and LS300GK hydraulic-driven concrete pump models.
- Sustained Fastener Integrity — A properly functioning lock washer prevents fastener back-out caused by vibration; a worn or missing one allows critical connections to loosen under pump load cycles.
A lock washer is placed beneath a bolt or nut to resist loosening caused by vibration, torque, and repeated mechanical stress. In a concrete pump like the LS300G and LS300GK, where hydraulic systems and high-cycle pumping action generate constant vibration, maintaining fastener tension is critical to safe and consistent operation. When a lock washer fails or is omitted, fasteners can back out over time, leading to loose assemblies, fluid leaks, or component misalignment that interrupts work on the job.
Part Details
| Part Number | 804602 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lock Washer 3/8 Grade 8 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300G |
| Concrete Pumps | LS300GK |
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.
