The Multiquip 20397 Input Shim 0.002 Thick is a genuine OEM replacement component designed for walk-behind power trowel models including the CA-4-4H, SCT36, SCT46, BA-SERIES, JA-SERIES, HPHA36C5H, HPHA46411H, HPLA46411H, CA4.4HM, CA4HM, and CA4HC series. This precision shim is sourced directly from Multiquip, ensuring the exact thickness specification required for correct drivetrain alignment in these machines. Fitment covers a broad range of Multiquip and Whiteman walk-behind trowel platforms, making 20397 a critical stocking part for dealers and service technicians supporting these units.
Key Features
- Exact Thickness Specification: — Manufactured to the precise 0.002-inch thickness required for proper input shaft shimming, ensuring correct bearing preload and drivetrain alignment.
- Genuine OEM Component: — Sourced directly from Multiquip, this shim carries the same material grade and dimensional tolerance as the part originally installed at the factory.
- Broad Trowel Series Compatibility: — Confirmed fitment across CA, JA, BA, HPHA, HPLA, and SCT series walk-behind trowels, including models CA-4-4H, SCT36, SCT46, and HPHA46411H.
- Drop-In Installation: — Designed to seat directly into the input assembly without machining or modification, supporting fast, accurate shimming during rebuild or overhaul work.
- Critical for Drivetrain Integrity: — Correct shimming prevents excessive axial play and premature bearing wear; an improperly shimmed input assembly can lead to accelerated component failure and trowel performance issues.
An input shim is a precisely ground spacer used to set the correct axial clearance and preload on the input shaft and its associated bearings within a walk-behind trowel gearbox or drive assembly. By controlling how tightly the shaft is held in position, the shim ensures that rotating components run true and that bearing loads are distributed correctly. When a shim is missing, worn, or of the wrong thickness, the result is excessive play in the drivetrain, accelerated bearing wear, and inconsistent blade pitch response — all of which compromise trowel finish quality and shorten the service life of surrounding components.
For fitment questions or parts support, contact DHS Equipment directly to confirm compatibility with your specific unit before ordering.
Part Details
| Part Number | 20397 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Input Shim 0.002 Thick |
Compatibility & Fitment
| Name | Model |
|---|---|
| International Walk-Behind Power Trowels | CA-4-4H |
| Saws | SCT36 |
| Saws | SCT46 |
| Heavy Duty Series | HPHA36C5H |
| Walk-Behind Trowels | HPHA46411H |
| Walk-Behind Trowels | BA-SERIES |
| Power Trowels | CA4.4HM |
| Walk-Behind Trowels | JA-SERIES |
| Saws | SCT36ANDSCT46 |
| C and CA Series | CA4HC |
| Walk-Behind Trowel | HPHA-46-SERIES |
| Walk-Behind Trowels | HPLA46411H |
| Walk-Behind Trowels | HPLA-HPHA-36 |
| 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.
