Multiquip M1311500703 Lower Radiator Hose

The Multiquip M1311500703 Lower Radiator Hose is a genuine OEM component designed for DCA36SPXU4F and DCA45SSIU4F series super-silent diesel generators. As a direct OEM replacement, M1311500703 is manufactured to the exact dimensions and material specification of the original part, ensuring a correct, leak-free connection in the cooling circuit. This hose is confirmed to fit DCA36SPXU4F, DCA45SSIU4F, and DCA45SSIU4FC8 generator models, including 60Hz variants. Sourced directly through the Multiquip parts network, it ships ready to install with no adaptation needed.

Key Features

• OEM-Grade Hose Construction — Manufactured to the original pressure and temperature tolerances required by Multiquip's super-silent diesel generator cooling systems.
• Exact-Fit Lower Hose Routing — Matches the original hose geometry and end diameter at both the lower radiator outlet and engine inlet connection points for a secure, clamp-ready installation.
• Confirmed Fitment — Compatible with DCA36SPXU4F, DCA45SSIU4F, and DCA45SSIU4FC8 models, including 60Hz configurations.
• Coolant Flow Integrity — A correctly seated lower radiator hose maintains the full coolant flow rate the engine depends on; a cracked or collapsed hose risks overheating and unplanned shutdown during critical power generation.
• Genuine Multiquip OEM Part — Supplied under part number M1311500703, this is an authorized replacement backed by Multiquip's parts program — not a generic approximation.

The lower radiator hose carries cooled coolant from the bottom of the radiator back to the engine's water pump inlet, completing the closed-loop cooling cycle. It operates under continuous pressure and elevated temperatures, making material integrity critical — a hose that softens, collapses, or develops a leak restricts coolant flow and can cause the engine to overheat rapidly. On generator sets like the DCA36SPXU4F and DCA45SSIU4F, where sustained run time and thermal stability are essential, replacing a worn or damaged lower hose at the first sign of deterioration protects the engine and maintains consistent output.

For fitment questions or help confirming compatibility with your specific DCA-series generator, contact the DHS Equipment parts team.

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.