Multiquip 3420 Pump End Coupler
Multiquip

Multiquip 3420 Pump End Coupler

$108.15
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SKU:
3420-Multiquip
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The Multiquip 3420 Pump End Coupler is a genuine OEM component designed for EM120P Series, EM120S Series, WM120PH, WM120SH, PRO12E51, PRO12E53, and PRO12 series mixers. As a direct OEM replacement, the 3420 is manufactured to the same specification as the original part, ensuring a proper fit in the pump end drive assembly without modification. DHS Equipment sources this part directly through authorized Multiquip channels, so you can trust you're getting the right component for your machine. Verify your model against the fitment list before ordering to confirm compatibility.

Key Features

  • Genuine OEM Construction — Manufactured to original Multiquip specification, ensuring the coupler maintains correct torque transfer characteristics and dimensional tolerances at the pump end interface.
  • Direct Drop-In Replacement — Engineered to align with the existing pump end drive assembly on compatible mixers, reinstalling into the original mounting position without rework.
  • Broad Mixer Compatibility — Confirmed fitment across EM120P Series, EM120S Series, WM120PH, WM120SH, PRO12E51, PRO12E53, and PRO12 Essick and Whiteman mixer platforms.
  • Sustained Drive Efficiency — A correctly functioning pump end coupler transmits power smoothly between the drive and pump components; a worn or cracked coupler can cause vibration, slippage, or complete loss of pump function.

The pump end coupler connects the drive shaft to the pump assembly, transmitting rotational force from the power source to the pump end of the mixer. It acts as the mechanical link that keeps the pumping action synchronized with the drive system, and its condition directly affects how efficiently the mixer moves material. When a pump end coupler wears, cracks, or fails, the result is typically vibration, inconsistent mixing output, or a complete loss of drive to the pump — making timely replacement essential to keeping the machine productive.

Part Details

Part Number3420
BrandMultiquip
Part TypeGenuine OEM
DescriptionPump End Coupler

Compatibility & Fitment

Name Model
Essick Mixers EM120P Series
Essick Mixers EM120S Series
Whiteman Mixers WM120PH
Whiteman Mixers WM120SH
Essick Mixers PRO12E51
Essick Mixers PRO12E53
Essick Mixers PRO12

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.