The Multiquip 20405 is a genuine OEM Output Shim 0.010 Thick designed for a wide range of Multiquip and Whiteman walk-behind power trowel models. This precision shim is a direct OEM replacement sourced from Multiquip, ensuring the correct thickness specification is maintained during drivetrain assembly. Compatible equipment includes the CA4HC, CA-4-4H, CA4.4HM, CA4HM, JA-SERIES, BA-SERIES, HPLA46411H, HPHA46411H, HPLA-HPHA-36, HPHA36C5H, HPHA-46-SERIES, SCT36, and SCT46. Keeping the correct shim in place is essential to maintaining proper output shaft alignment and transmission function across this broad family of trowel equipment.
Key Features
- OEM-Specified Thickness: — Manufactured to the exact 0.010-inch dimension required for correct output shaft stack height — even a small variance can affect gear mesh and bearing preload.
- Drop-In Drivetrain Fit: — Installs directly into the output shaft assembly without any machining or modification, maintaining correct positional tolerances within the gearbox.
- Broad Trowel Family Coverage: — Fits CA-SERIES, CA4HC, CA4.4HM, CA4HM, JA-SERIES, BA-SERIES, HPLA, HPHA, and SCT36/SCT46 models, making it a versatile shim to stock for multi-machine operations.
- Protects Output Shaft and Gearing: — Correct shimming prevents axial play in the output shaft, which, if left unchecked, accelerates gear and bearing wear and causes vibration during troweling passes.
- Genuine Multiquip OEM Part: — As a genuine OEM component, part this part meets the original design intent for clearance and material grade, giving you confidence during overhaul or rebuild work.
An output shim is a precision-thickness spacer used inside a gearbox or drivetrain assembly to set the correct axial position of a shaft or gear. In a walk-behind power trowel, the output shaft transmits engine torque to the trowel blades, and the shim ensures the shaft sits at exactly the right depth within the housing so gears mesh correctly and bearings carry load evenly. When a shim is worn, lost during service, or replaced with one of the wrong thickness, the result is excess shaft play, accelerated gear wear, and inconsistent blade performance that shows up as uneven finishing on the concrete surface.
Part Details
| Part Number | 20405 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Output Shim 0.010 Thick |
Compatibility & Fitment
| Name | Model |
|---|---|
| International Walk-Behind Power Trowels | CA-4-4H |
| Walk-Behind Trowels | HPLA46411H |
| Walk-Behind Trowels | JA-SERIES |
| Walk-Behind Trowels | HPLA-HPHA-36 |
| C and CA Series | CA4HC |
| Saws | SCT36 |
| Saws | SCT46 |
| Heavy Duty Series | HPHA36C5H |
| Walk-Behind Trowel | HPHA-46-SERIES |
| Walk-Behind Trowels | HPHA46411H |
| Walk-Behind Trowels | BA-SERIES |
| Power Trowels | CA4.4HM |
| Whiteman Walk-Behind Power Trowels | CA4HM |
| 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.
