Multiquip 8970908421 Nozzle Holder Assembly DCA25USI 4LE2

The Multiquip 8970908421 Nozzle Holder Assembly DCA25USI 4LE2 is a genuine OEM component designed for the DCA25USI ultra-silent diesel generator. As a direct Multiquip OEM part, it is manufactured to the same specification as the original component installed at the factory, ensuring a correct, interference-free installation into the 4LE2 engine fuel system. This assembly is the right choice when replacing a worn or damaged nozzle holder on DCA25USI equipment, and ordering by part number 8970908421 confirms you are sourcing the exact correct part for your machine.

Key Features

• OEM Fuel Injection Integrity — Manufactured to the original specification for the 4LE2 engine, maintaining correct fuel atomization and injection pressure critical to generator output stability.
• Direct Assembly Replacement — Designed to seat and torque exactly as the original nozzle holder, with no reworking of mounting points or fuel line connections required.
• Confirmed DCA25USI Fitment — Engineered specifically for the DCA25USI ultra-silent diesel generator platform; verify your model before ordering to ensure compatibility.
• Protects Engine Performance — A correctly functioning nozzle holder delivers consistent fuel spray patterns; a worn or cracked holder causes misfiring, hard starts, and uneven power output under load.
• Fuel System Safety — A properly sealed nozzle holder assembly prevents fuel leaks at the injector seat, reducing the risk of fuel contact with hot engine surfaces in an enclosed generator enclosure.

The nozzle holder assembly secures the fuel injector nozzle in position within the engine's cylinder head and acts as the sealed interface between the high-pressure fuel supply line and the combustion chamber. It maintains the precise alignment and seating pressure the nozzle requires to deliver a controlled, finely atomized fuel spray at the correct injection angle. When the holder becomes worn, cracked, or fails to seat properly, the result is fuel leakage, poor combustion efficiency, increased exhaust smoke, and loss of consistent electrical output from the generator — making timely replacement with the correct OEM part essential to keeping the DCA25USI operating at rated capacity.

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.