The Multiquip 2421 Seat Plate W/A J/Brt,Jrn,Bhn is a genuine OEM component designed for International and Whiteman ride-on power trowel series, including HTNS5S-2, JTNSW24HTCSL, JTNSW20HTCSL, JTNSW20, JTNS20, JWN24HTCSL/HSCSL, HTN-KHOLER/ONAN/HONDA, and JTO-SERIES machines. As a direct Multiquip OEM part, the 2421 is manufactured to the same specification as the original component installed at the factory, ensuring a consistent, accurate installation without guesswork. DHS Equipment supplies this part as an authorized Multiquip dealer, so you can be confident you are receiving the correct component for your machine.
Key Features
- Genuine OEM Construction — Machined and finished to Multiquip's original tolerancing for the seat plate assembly, ensuring the seating surface integrity critical to trowel drivetrain stability.
- Direct-Fit Installation — Engineered to bolt directly into the trowel's journal and bearing journal interface, matching the original mounting geometry of the 2421 position.
- Broad Ride-On Trowel Compatibility — Fits HTNS5S-2, JTNSW24HTCSL, JTNSW20HTCSL, JTNSW20, JTNS20, JWN24HTCSL/HSCSL, HTN-KHOLER/ONAN/HONDA, and JTO-SERIES machines, covering a wide range of International and Whiteman mechanical ride-on trowel configurations.
- Drivetrain Surface Support — Maintains correct bearing and journal alignment within the trowel assembly; a worn or damaged seat plate can cause excessive play, vibration, and accelerated wear on adjacent drivetrain components.
- Verified Part Number — Sourced directly under Multiquip part number 2421, eliminating fitment uncertainty when ordering for maintenance or repair.
The seat plate assembly in a ride-on power trowel serves as a precision-machined seating surface that locates and supports the journal and bearing components within the trowel's drive system. It keeps rotating and oscillating parts correctly aligned during operation, which is essential for smooth blade pitch control and consistent finishing performance across the deck. When a seat plate becomes worn, cracked, or dimensionally compromised, it can introduce unwanted movement into the bearing journal interface, leading to uneven trowel blade action, increased mechanical noise, and accelerated wear on surrounding components.
Part Details
| Part Number | 2421 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Seat Plate W/A J/Brt,Jrn,Bhn |
Compatibility & Fitment
| Name | Model |
|---|---|
| International Ride-On Power Trowels | HTNS5S-2 |
| International Ride-On Power Trowels | JTNSW24HTCSL |
| International Ride-On Power Trowels | JTNSW20HTCSL |
| International Ride-On Power Trowels | JTNSW20 |
| International Ride-On Power Trowels | JTNS20 |
| Whiteman Ride-On Power Trowels | JWN24HTCSL/HSCSL |
| Whiteman Ride-On Power Trowels | HTN-KHOLER/ONAN/HONDA |
| Whiteman Ride-On Power Trowels | JTO-SERIES |
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.
