The Multiquip 20402 Output Shim 0.002 Thick is a genuine OEM shim designed for walk-behind power trowel models across the CA, JA, BA, and HPHA series. As a factory-original component, this shim delivers the exact thickness specification required to maintain correct output shaft clearance and bearing preload in these machines. Confirmed fitment includes models such as CA4HM, CA4HC, HPHA36C5H, HPHA46411H, HPLA46411H, and units across the BA-Series and JA-Series walk-behind trowel families. Sourcing part number 20402 directly from an authorized Multiquip distributor ensures you receive the correct shim for a precise drivetrain setup.
Key Features
- Exact Thickness Tolerance: — Ground to a 0.002-inch specification, this shim delivers the precise output shaft clearance needed to prevent premature bearing wear and drivetrain play.
- Genuine OEM Component: — Manufactured to Multiquip's original design, part number this part matches the shim installed at the factory with no guesswork on sizing or material grade.
- Broad Walk-Behind Trowel Compatibility: — Fits CA, CA4, JA, BA, HPHA, and HPLA series walk-behind power trowels, making it a go-to shim for mixed fleets running multiple trowel sizes.
- Drivetrain Integrity: — Correct output shim thickness keeps blade pitch adjustment smooth and consistent, ensuring the trowel delivers an even, controlled finish pass across the concrete surface.
- Simple Serviceability: — Thin shim profile allows straightforward installation during output shaft service or gearbox reassembly without special tooling beyond standard hand tools.
An output shim is a precision spacer placed at the output shaft of a walk-behind trowel's gearbox to set the correct axial clearance and bearing preload. Getting this clearance right is critical — too much play allows the output shaft to shift under load, causing uneven blade pitch and sloppy trowel control, while too little clearance puts excess stress on the bearings and accelerates wear. When this shim wears down, becomes deformed, or is left out during reassembly, operators will typically notice vibration, inconsistent blade response, or increased gearbox noise during finishing operations.
For fitment questions or to confirm compatibility with your specific trowel model, contact the DHS Equipment team before ordering.
Part Details
| Part Number | 20402 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Output Shim 0.002 Thick |
Compatibility & Fitment
| Name | Model |
|---|---|
| International Walk-Behind Power Trowels | CA-4-4H |
| Heavy Duty Series | HPHA36C5H |
| Walk-Behind Trowel | HPHA-46-SERIES |
| Walk-Behind Trowels | HPHA46411H |
| Walk-Behind Trowels | HPLA-HPHA-36 |
| C and CA Series | CA4HC |
| Saws | SCT36 |
| Saws | SCT46 |
| Whiteman Walk-Behind Power Trowels | CA4HM |
| Walk-Behind Trowels | HPLA46411H |
| Walk-Behind Trowels | BA-SERIES |
| Power Trowels | CA4.4HM |
| Walk-Behind Trowels | JA-SERIES |
| Saws | SCT36ANDSCT46 |
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.
