The Multiquip 363420 is a genuine OEM Outer Bearing Cup designed for Mayco hydraulic-driven concrete pumps, including the LS300, LS400, LS40D, LS40TD, LS500, LS50TD, LS600, and LS60TD series. As an authentic Multiquip OEM component, part 363420 is manufactured to the exact tolerances required by these machines, ensuring a direct, consistent fit within the bearing assembly. If you are servicing any of the listed LS-series concrete pumps, verifying the correct bearing cup part number before installation is critical to maintaining proper load distribution and shaft alignment.
Key Features
- OEM-Matched Taper Tolerance — Manufactured to the precise taper angle and bore dimensions specified for the LS-series bearing assembly, ensuring correct seating against the roller bearing cone.
- Direct Drop-In Replacement — Engineered to seat into the existing housing bore without reworking or shimming, keeping your rebuild on schedule.
- Broad LS-Series Compatibility — Confirmed fitment across LS300, LS400, LS40D, LS40TD, LS500, LS50TD, LS600, and LS60TD Mayco concrete pumps.
- Load-Bearing Integrity — The outer cup provides the hardened raceway surface that roller bearings run against; a worn or pitted cup causes bearing noise, heat buildup, and accelerated roller wear that can lead to shaft failure under pumping load.
- Genuine Multiquip OEM Part — Sourced directly through the Multiquip parts network, so you receive the same component specified in the original build — no guesswork on material grade or dimensional accuracy.
The outer bearing cup, also called a bearing race, is the outer ring of a tapered roller bearing assembly. It provides the hardened, precision-ground surface that the tapered rollers contact as they rotate, transferring radial and axial loads from the shaft to the housing. In a concrete pump like the LS-series, bearing assemblies endure significant continuous load during pumping cycles, and a worn or damaged cup creates uneven roller contact that generates heat, increases vibration, and ultimately leads to bearing collapse. Replacing the outer cup as part of any bearing service restores the full load-carrying capacity of the assembly and protects the shaft and housing from secondary damage.
Part Details
| Part Number | 363420 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Outer Bearing Cup |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS400 |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS600 |
| Mayco Pumps | LS60TD |
| Mayco Pumps | LS40D |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS50TD |
| Mayco Pumps | LS300 |
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.
