Multiquip 3615 Set Collar 3/4 ID

The Multiquip 3615 Set Collar 3/4 ID is a genuine OEM collar designed for a wide range of Multiquip and Whiteman walk-behind power trowels, ride-on trowels, concrete saws, and roller screeds. As a direct OEM replacement, part 3615 is manufactured to the same tolerances as the original component, ensuring a secure shaft grip and consistent performance across every compatible machine. Confirmed fitment covers an extensive lineup including J36, JA, B46, B-Series, CA, HDA, JRT, FS2, WRS5200, WRSPUDF, and many additional models. Sourcing the correct collar by 3615 is critical — the part is the verified OEM reference for all equipment listed.

Key Features

• OEM-Grade Shaft Clamping: — Manufactured to original bore and set-screw tolerances for a firm, slip-free grip on 3/4-inch shafts.
• Drop-In Shaft Fit: — Sized to 3/4-inch ID, the collar seats directly onto compatible shafts without boring, shimming, or adaptation.
• Broad Cross-Model Compatibility: — Fits J36, JA, B46, B-Series, CA, HDA, JRT mechanical ride-on trowels, FS2 concrete saws, WRS5200 and WRSPUDF roller screeds, and numerous additional Multiquip and Whiteman models.
• Maintains Shaft Alignment: — A correctly seated set collar holds rotating components in their intended axial position, preventing blade or drive component drift during operation.
• Verified OEM Part Number: — Part number this part is the genuine Multiquip reference, eliminating guesswork when ordering for any of the covered equipment families.

A set collar is a mechanical fastener that clamps onto a rotating or stationary shaft to position and retain components such as drive hubs, bearings, or rotating assemblies. On power trowels and concrete finishing equipment, set collars keep critical rotating parts fixed at the correct axial location along the shaft. When a set collar loosens, wears, or fails, components can shift out of position, causing uneven blade contact, vibration, accelerated bearing wear, or loss of drive engagement — all of which affect surface finish quality and can lead to more extensive mechanical damage if left uncorrected.

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.