The Multiquip 90403 Left Rear Drive Motor Seals is a genuine OEM component designed for JWN24HTCSL series Whiteman ride-on power trowels and AR14H rollers. As a factory-original part, 90403 is produced to the same specification as the seals installed at the time of manufacture, ensuring a direct, correct-fit replacement. Sourced through DHS Equipment as an authorized Multiquip parts distributor, this part is backed by the confidence of genuine OEM supply. Verify your model and part number before ordering to confirm compatibility with your specific unit.
Key Features
- Genuine OEM Sealing Material — Factory-original seal compound rated for the hydraulic fluid pressures and temperature cycles found in drive motor applications, maintaining integrity where aftermarket materials may degrade.
- Direct-Fit Replacement — Engineered to the exact dimensions of the left rear drive motor housing on compatible Multiquip equipment, seating correctly without rework or shimming.
- Confirmed Fitment — Compatible with JWN24HTCSL Whiteman ride-on power trowels and AR14H rollers; always cross-reference part number 90403 against your machine's serial plate before ordering.
- Hydraulic Leak Prevention — Intact drive motor seals prevent fluid bypass and pressure loss in the drive circuit; worn or failed seals cause fluid weeping at the motor, sluggish drive response, and potential motor damage if left unaddressed.
- Operational Safety Relevance — Drive motor seal failure on a ride-on trowel or roller can result in unpredictable drive behavior; replacing seals at the first sign of leakage keeps the machine responding as intended and reduces the risk of loss of directional control.
Drive motor seals form the pressure boundary between the rotating shaft and the motor housing in a hydraulic drive system. They retain hydraulic fluid inside the motor under operating pressure while keeping contaminants out, allowing the motor to generate consistent torque and deliver smooth, controlled movement to the machine's drive wheels or drum. When these seals wear, crack, or harden with age, fluid migrates past the seal lip, causing external leaks at the motor, a gradual drop in drive circuit pressure, and reduced traction or drive speed. Left unserviced, seal failure accelerates wear on the motor's internal components and can lead to a full motor replacement — making timely seal service one of the most cost-effective maintenance steps on hydraulically driven equipment.
Part Details
| Part Number | 90403 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Left Rear Drive Motor Seals |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | JWN24HTCSL/HSCSL |
| Rollers | AR14H |
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.
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