Multiquip M1374100603 Air Cleaner Hose

The Multiquip M1374100603 is a genuine OEM Air Cleaner Hose designed for DCA36SPXU4F and DCA45SSIU4F series super-silent diesel generators. As a direct OEM replacement, this hose is manufactured to the exact specifications of the original component, ensuring a proper seal between the air filtration assembly and the engine intake. Verified fitment covers DCA36SPXU4F, DCA45SSIU4F, and DCA45SSIU4FC8 generator models, including 60Hz variants.

Key Features

• Genuine OEM Construction — Manufactured to the same material and dimensional tolerances as the original hose, maintaining the airtight connection critical to proper air filtration on diesel generator engines.
• Direct Drop-In Replacement — Engineered to match the original routing, diameter, and end fittings so the hose seats correctly into the air cleaner assembly without modification.
• Broad Generator Fitment — Compatible with DCA36SPXU4F, DCA45SSIU4F, and DCA45SSIU4FC8 super-silent and ultra-silent series generators, including 60Hz configurations.
• Protects Engine Air Intake Integrity — A properly seated air cleaner hose prevents unfiltered air from bypassing the filter element, protecting the engine from premature wear caused by dust and debris ingestion.
• Fuel System and Emissions Compliance — Maintaining an intact air intake pathway is essential for proper fuel-air metering on Tier 4 diesel engines, helping the generator operate within its designed emissions and performance parameters.

The air cleaner hose connects the air filter housing to the engine's intake system, channeling filtered air into the combustion chamber. It forms a sealed conduit that ensures only clean, measured airflow reaches the engine — critical on diesel generators where dust ingestion can accelerate cylinder and injector wear. When the hose cracks, collapses, or loses its seal at either end, unfiltered air enters the intake, increasing wear rates and disrupting the fuel-air ratio that the engine management system depends on for efficient, clean combustion.

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.