Multiquip 2023417 85 Tooth Internal Gear

The Multiquip 2023417 is a genuine OEM 85 Tooth Internal Gear designed for Multiquip and STOW diaphragm pump models including MQ-D305, D306, MQ-D206H, MQ-D306HA, SDP-2, and SDP-3. As a direct OEM replacement, this gear is produced to the same specifications as the original component, ensuring correct tooth count, pitch, and dimensional accuracy for a drop-in fit within the pump drive assembly. Keeping this gear in proper working condition is critical to maintaining consistent diaphragm stroke and reliable fluid transfer on every job. DHS Equipment stocks this Multiquip 2023417 so you can get your pump back in service without delay.

Key Features

• OEM Tooth Profile Accuracy — Manufactured to the exact 85-tooth internal gear specification, maintaining correct drive ratio and smooth meshing within the pump's gear train.
• Direct Drive Assembly Fit — Engineered to install directly into the diaphragm pump drive housing without modification, aligning precisely with mating gears and shaft interfaces.
• Broad Diaphragm Pump Compatibility — Confirmed fitment across MQ-D305, D306, MQ-D206H, MQ-D306HA, SDP-2, and SDP-3 diaphragm pump models.
• Consistent Diaphragm Stroke — A correctly functioning internal gear maintains the timed eccentric motion that drives the diaphragm, ensuring steady flow rate and suction performance.
• Genuine Multiquip OEM Part — Sourced directly through authorized Multiquip supply channels, providing the material grade and heat treatment required for sustained operation in pump drive applications.

The 85 Tooth Internal Gear is a core component of the diaphragm pump's drive mechanism. It works within the gear train to convert rotational input from the engine or motor into the eccentric motion that reciprocates the diaphragm, creating the alternating pressure and vacuum needed to draw fluid in and push it out. When this gear wears, chips, or loses tooth integrity, the pump loses stroke consistency, resulting in reduced output, erratic flow, or complete loss of pumping action. Replacing a worn internal gear with a correct OEM specification part restores proper drive engagement and returns the pump to full performance.

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.