Multiquip RE531802 Injector Nozzle
Multiquip

Multiquip RE531802 Injector Nozzle

$360.65
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RE531802-Multiquip
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The Multiquip RE531802 Injector Nozzle is a genuine OEM component designed for AP6 and AP8 series water pumps. Sourced directly from Multiquip, this injector nozzle meets the exact specifications required to maintain proper fuel atomization and combustion efficiency in compatible equipment. It is a direct OEM replacement for the original nozzle, confirming fitment on AP6 and AP8 models. Keeping the correct nozzle in service is essential to consistent engine performance and fuel economy on the jobsite.

Key Features

  • Genuine OEM Fuel Delivery Spec — Manufactured to the precise spray pattern and flow rate required for proper combustion in AP6 and AP8 engines, not a generic substitute.
  • Direct OEM Replacement — Replaces the original injector nozzle with a drop-in fit, connecting to the existing fuel injection system without modification to fittings or mounting hardware.
  • Confirmed Fitment — Verified for use on Multiquip AP6 and AP8 water pump models.
  • Restored Atomization Performance — A worn or clogged injector nozzle causes rough running, hard starts, and increased fuel consumption; a fresh OEM nozzle restores clean, consistent fuel spray for smooth operation.
  • Fuel System Integrity — Using the correct OEM nozzle prevents combustion irregularities that can lead to engine damage over time, making it a critical component in any scheduled fuel system service.

The injector nozzle is responsible for atomizing diesel fuel into a fine mist before it enters the combustion chamber. The quality and pattern of this spray directly determines how completely the fuel burns, affecting power output, fuel efficiency, and exhaust cleanliness. When an injector nozzle wears out or becomes fouled with deposits, the spray pattern degrades — leading to hard starting, uneven power delivery, excessive smoke, and accelerated wear on internal engine components.

Part Details

Part NumberRE531802
BrandMultiquip
Part TypeGenuine OEM
DescriptionInjector Nozzle

Compatibility & Fitment

Name Model
Water Pumps AP6
Water Pumps AP8

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.