Multiquip EM901515 Idler Pulley

The Multiquip EM901515 is a genuine OEM Idler Pulley designed for Essick and Whiteman plaster and mortar mixer models. This direct-replacement pulley is confirmed to fit a wide range of mixer configurations, including Essick Mixers EM90P/S, EM70P/S, EM70SLF, and EM90SLF, as well as Whiteman Mixers WM70S/P, WM70SLF, WM70PLF, WM90SLF, WM90PLF, and WM90S/P — and the Whiteman Power Buggy WTB-16PD. As a genuine OEM component, EM901515 is manufactured to the exact tolerances specified for these machines, ensuring correct belt tension and smooth drive train operation across the mixer lineup.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's exact dimensional and load-bearing specifications for the idler pulley position, ensuring proper belt wrap angle and consistent tension throughout the drive system.
• Direct Drop-In Replacement — Mounts to the original bracket position without modification, restoring the belt path geometry as originally engineered for these mixer and buggy platforms.
• Broad Mixer Compatibility — Fits Essick EM70 and EM90 series (P/S, SLF variants) and Whiteman WM70 and WM90 series (S/P, SLF, PLF variants), plus the WTB-16PD Power Buggy.
• Sustained Belt Drive Performance — A properly functioning idler pulley maintains correct belt tension, preventing slippage, uneven drum rotation, and premature belt wear that can stall mixing operations mid-batch.
• Verified Part Number Fit — Part number EM901515 cross-references directly to the Multiquip OEM parts catalog for the listed models, giving you confidence that this is the correct component before it ships.

The idler pulley is a critical component in the belt-driven mixing system found on Essick and Whiteman mortar and plaster mixers. Its job is to maintain consistent tension on the drive belt as it transfers power from the engine to the mixing drum — without the correct tension, the belt can slip, squeal, or jump off the pulleys entirely, bringing mixing to a halt. When an idler pulley wears, seizes, or develops play in its bearing, belt tension becomes unpredictable, accelerating belt wear and placing added load on the engine. Replacing a worn EM901515 restores the drive system to proper operating condition and protects the belt from premature failure.

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.