Multiquip 5154110420 Leak Off Pipe

The Multiquip 5154110420 Leak Off Pipe is a genuine OEM component designed for the DCA45SSIU2 series ultra-silent diesel generators, including the DCA45SSIU2, DCA45SSIU2-FEMA, and DCA45SSIU2-GEER configurations. As a direct OEM replacement, this pipe is manufactured to the exact specifications required by the fuel system on these units, ensuring a correct, no-guesswork installation. Sourced directly through authorized Multiquip supply channels, the part is the right part for operators and service technicians who need to restore proper fuel system function on DCA45SSIU2 equipment. DHS Equipment stocks genuine Multiquip parts so you can get the correct component and get your generator back in service.

Key Features

• Genuine OEM Fuel System Integrity — Manufactured to the original design specification for the DCA45SSIU2 fuel return circuit, ensuring correct flow path and connection geometry.
• Direct OEM Replacement — Replaces the original Leak Off Pipe on DCA45SSIU2 units with a direct swap using existing fittings and mounting points.
• Confirmed Fitment — Verified for DCA45SSIU2, DCA45SSIU2-FEMA, and DCA45SSIU2-GEER diesel generator models.
• Fuel System Performance — A functioning leak off pipe keeps excess fuel returning cleanly to the tank or return circuit; a cracked or blocked pipe can cause fuel pressure irregularities, rough running, or hard starting.
• Fuel System Safety — A compromised leak off pipe can result in external fuel leakage near hot engine components, making prompt replacement an important safety measure on any diesel-powered generator.

The leak off pipe — sometimes called a fuel return pipe — is a small but critical component in a diesel fuel injection system. It channels excess fuel that bypasses the injectors back to the fuel tank or return line, maintaining correct pressure balance across the injection system. When this pipe cracks, splits, or loses a secure connection, fuel can escape externally or allow air into the fuel circuit, leading to pressure loss, misfiring, or difficulty starting the engine. On generators like the DCA45SSIU2 that are expected to run reliably under load, keeping this pipe in sound condition is essential to consistent output and safe operation.

For questions about fitment or to confirm this is the correct part for your unit, contact the DHS Equipment parts team directly.

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.