The Multiquip 10639 is a genuine OEM Thrust Collar Wear Plate designed for C, CA, J, and JS series walk-behind power trowels, including the CA4HC, CA4.4HM, CA4HM, J3036H55, JS30H55DE, JS36, CS24H55E, and CA-4-4H. As a direct OEM replacement, this wear plate meets the original engineering specification for material grade and dimensional accuracy — so it installs exactly as the factory part did. Sourced directly through Multiquip's authorized parts channel, the part is the correct component to restore proper thrust collar function and protect adjacent drivetrain components from accelerated wear.
Key Features
- OEM-Grade Wear Material — Manufactured to the same hardness and surface finish spec as the original, ensuring consistent contact and controlled wear rate at the thrust collar interface.
- Drop-In Replacement — Matches the original mounting profile of the thrust collar assembly in C, CA, J, and JS series trowels, so installation requires no custom fitting or rework.
- Broad Walk-Behind Trowel Fitment — Confirmed for CA4HC, CA4HM, CA4.4HM, CA-4-4H, CS24H55E, J3036H55, JS30H55DE, JS36, and CA4HC/CA5BC Whiteman models.
- Protects Thrust Collar Integrity — A worn or missing wear plate allows metal-on-metal contact at the thrust collar, leading to rapid collar deterioration and costly assembly replacement.
- Genuine Multiquip OEM Part — Supplied under part number 10639 through Multiquip's authorized parts network, so you receive the correct component without guesswork.
The thrust collar wear plate sits between the thrust collar and adjoining rotating or sliding components within the trowel's blade pitch and drive assembly. Its job is to absorb axial load and friction at that interface, acting as a sacrificial surface that protects harder, more expensive components from direct wear contact. When this plate wears through or is damaged, uncontrolled metal-to-metal contact can cause accelerated collar wear, blade pitch instability, and vibration — all of which affect the quality of the finished concrete surface and increase the risk of broader drivetrain damage.
Part Details
| Part Number | 10639 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Thrust Collar Wear Plate |
Compatibility & Fitment
| Name | Model |
|---|---|
| International Walk-Behind Power Trowels | CA-4-4H |
| Whiteman Walk-Behind Power Trowels | CA4HC/CA5BC |
| International Walk-Behind Power Trowels | CS24H55E |
| Whiteman Walk-Behind Power Trowels | J3036H55 |
| Walk-Behind Trowels | C-4 |
| C and CA Series | CA4HC |
| Walk-Behind Trowels | JS30H55DE |
| Power Trowels | CA4.4HM |
| Walk-Behind Trowels | JS36 |
| Whiteman Walk-Behind Power Trowels | CA4HM |
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.
