The Multiquip 1145 Gearbox Cover is a genuine OEM replacement designed for J36E2, JTNSW20, JTNS20, JTO-Series, and compatible J and B Series international power trowel models. As a factory-sourced component, it is manufactured to the exact tolerances and material specifications of the original part, ensuring a correct, secure fit on the gearbox housing. DHS Equipment supplies this part direct, so you can be confident you are ordering the right cover for your machine. Verify your model code against the fitment list before ordering to confirm compatibility.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original material and dimensional specifications, ensuring the cover seats flush and seals the gearbox housing correctly — critical for keeping contaminants out of the gear assembly.
- Direct-Fit Replacement — Matches the original mounting pattern and fastener layout on compatible trowel gearboxes, so installation follows the standard service procedure without modification.
- Broad Trowel Compatibility — Fits J36E2 walk-behind trowels, JTNSW20 and JTNS20 ride-on models, JTO-Series ride-on trowels, and compatible J and B Series international walk-behind units.
- Gearbox Protection — A properly fitted cover shields internal gearing and lubrication from dirt, debris, and moisture on the work surface, directly supporting consistent trowel blade speed and engagement.
- Long-Term Structural Integrity — Replacing a cracked, broken, or missing gearbox cover promptly prevents accelerated wear to internal components and avoids more costly drivetrain repairs down the line.
The gearbox cover on a walk-behind or ride-on power trowel serves as the protective enclosure for the gear assembly that transfers engine power to the trowel blades. It keeps the internal gears and lubricant sealed against concrete dust, water, and other abrasive material present on a finishing slab. When the cover is cracked, broken, or missing, contamination enters the gearbox rapidly, accelerating wear on the gears and bearings and leading to inconsistent blade rotation or premature drivetrain failure. Replacing the cover with a correct OEM part restores the integrity of the sealed assembly and protects the investment in the broader gearbox components.
Part Details
| Part Number | 1145 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Gearbox Cover |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | J36E2 |
| International Ride-On Power Trowels | JTNSW20 |
| International Ride-On Power Trowels | JTNS20 |
| Whiteman Ride-On Power Trowels | JTO-SERIES |
| International Walk-Behind Power Trowels | J SERIES CHINA |
| International Walk-Behind Power Trowels | B SERIES CHINA |
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.
