Multiquip RG60337 Flywheel STH 55 4020TF

The Multiquip RG60337 Flywheel STH 55 4020TF is a genuine OEM flywheel designed for the STH55 series. As a direct Multiquip OEM component, it is manufactured to the exact specifications required for correct engine operation on STH55 equipment. This part ships as a direct replacement, ensuring a proper fit with no improvised modifications to your machine. Sourced through DHS Equipment as an authorized Multiquip parts distributor, you can order with confidence knowing you are receiving the correct component for your application.

Key Features

• Genuine OEM Construction — Cast and balanced to the precise tolerances required for the STH55 engine, maintaining correct rotational mass and ignition timing alignment.
• Direct Replacement Fit — Matches the original mounting configuration and keyway alignment of the STH55, allowing straightforward installation without reworking the crankshaft assembly.
• STH55 Series Compatibility — Confirmed fitment for STH55 equipment; always verify your model and serial number against part number RG60337 before ordering.
• Consistent Engine Timing — A correctly weighted and balanced flywheel keeps ignition timing stable across the full operating range, supporting smooth engine output and consistent power delivery.
• Ignition System Integrity — The flywheel carries the magneto trigger magnets; using the correct OEM flywheel ensures proper spark timing, which is critical for safe engine starting and continued operation.

The flywheel is a heavy rotating disc mounted directly on the engine crankshaft. Its primary job is to store rotational energy between power strokes, smoothing out the engine's power delivery and keeping it running evenly. On small engines, the flywheel also carries the permanent magnets that pass by the ignition coil to generate the spark needed to fire the cylinder. A cracked, damaged, or incorrect flywheel can cause hard starting, misfires, rough running, and in severe cases can create a significant safety hazard due to the high rotational forces involved.

For fitment questions or help confirming this part is correct for your specific STH55 unit, contact the DHS Equipment parts team before ordering.

Part Details

Compatibility & Fitment

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.