Multiquip 9137211322 Rubber Bypass Hose

The Multiquip 9137211322 is a genuine OEM Rubber Bypass Hose designed for the DCA25SSI, DCA25SSIU, DCA25SSI2, DCA25SSAI, and DCA25SSIU-GEER ultra-silent diesel generator series. Sourced directly from Multiquip, this hose matches the original fitment specification for a direct, hassle-free installation. As a genuine OEM component, it is the same part installed at the factory, ensuring accurate routing, secure connections, and lasting performance in demanding jobsite conditions. Confirm your model code against the fitment list above before ordering to ensure compatibility.

Key Features

• Genuine OEM Coolant Routing Integrity — Manufactured to Multiquip's original material and dimensional spec, ensuring the hose holds correct pressure and resists the heat cycles typical of diesel generator cooling systems.
• Drop-In Installation — Matches the original hose routing, diameter, and end fittings on supported DCA-series generators, so installation requires no cutting, adapting, or rerouting.
• Confirmed Fitment — Verified for DCA25SSI, DCA25SSIU, DCA25SSI2, DCA25SSAI, and DCA25SSIU-GEER ultra-silent diesel generator models.
• Cooling System Reliability — A correctly functioning bypass hose maintains stable coolant circulation at startup and under load, preventing hot spots that can accelerate engine wear or trigger thermal shutdowns.
• Leak Prevention — OEM-grade rubber construction resists cracking, swelling, and compression set that cause coolant leaks — a common failure point with worn or mismatched hoses on continuous-run generator sets.

A bypass hose routes coolant around the thermostat when the engine is cold, allowing the engine to reach operating temperature quickly and evenly before full coolant circulation begins. On diesel generator sets like the DCA25SSI series, this hose plays a key role in thermal management — keeping the engine within its optimal temperature range during startup and steady-state operation. When this hose cracks, collapses, or leaks, coolant flow is disrupted, which can lead to overheating, erratic temperature readings, or unplanned shutdowns during power-critical applications.

DHS Equipment is an authorized Multiquip parts dealer. If you need help confirming fitment for your specific unit, contact our parts team with your model and serial number.

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.