The Multiquip 21994 Pulley AK59 x 3/4" Bore is a genuine OEM component designed for Whiteman and International walk-behind and ride-on power trowels, including the J36-M30, J3036H55, JS60C, JH90C, JH55C, CS24H55E, JS36H90, and JS36H55 series. As a direct OEM replacement, 21994 meets the original design specification for belt-driven trowel systems, ensuring correct belt tracking and consistent power transfer from the engine to the trowel blades. DHS Equipment sources this part directly through authorized Multiquip distribution channels, so you receive a verified, shelf-ready component backed by OEM quality assurance.
Key Features
- OEM-Spec Belt Groove Geometry — The AK59 profile and 3/4" bore are manufactured to the original Multiquip drawing, maintaining correct belt tension and alignment on belt-driven trowel powertrains.
- Direct Bolt-On Replacement — The 3/4" bore mounts directly to the engine output shaft used across compatible Whiteman and International trowel models with no shaft modifications needed.
- Wide Trowel Series Coverage — Fits J36-M30, J3036H55, JS60C, JH90C, JH55C, JS36H90, JS36H55, and CS24H55E, covering a broad range of walk-behind and ride-on power trowel configurations.
- Consistent Blade Speed Delivery — A correctly sized and seated pulley maintains the designed blade RPM, keeping finishing quality consistent across the full troweling pass.
- Verified Multiquip Part Number — Sold under the exact OEM part number 21994, eliminating cross-reference guesswork and reducing the risk of ordering an incompatible pulley diameter or bore size.
The drive pulley on a walk-behind or ride-on power trowel transfers rotational power from the engine to the belt that drives the trowel blade assembly. The AK59 designation refers to the V-belt sheave profile and outside diameter, while the 3/4" bore matches the engine shaft on compatible Whiteman and International trowel models. When a pulley wears, cracks, or becomes loose on the shaft, belt slippage occurs — reducing blade speed, causing uneven concrete finishing, and accelerating belt wear. Replacing a worn or damaged pulley with the correct OEM 21994 restores proper drive engagement and protects the belt from premature failure.
Part Details
| Part Number | 21994 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Pulley AK59 x 3/4" Bore |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | J36-M30 |
| Whiteman Walk-Behind Power Trowels | J3036H55 |
| International Walk-Behind Power Trowels | JS60C |
| Whiteman Walk-Behind Power Trowels | JH90C |
| Whiteman Walk-Behind Power Trowels | JH55C |
| Whiteman Walk-Behind Power Trowels | J36-M30 Series |
| International Walk-Behind Power Trowels | CS24H55E |
| International Walk-Behind Power Trowels | JS36H90 |
| International Walk-Behind Power Trowels | JS36H55 |
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.
