The Multiquip EE45446 is a genuine OEM Lower Water Line Tubing SS Cummins QSL9 designed for QSL9-powered Multiquip equipment. Sourced directly from Multiquip, this stainless steel lower water line tubing is manufactured to the exact specifications required for proper coolant routing on QSL9 engine installations. Correct fitment is confirmed for QSL9 series equipment, making it a direct drop-in replacement with no guesswork. When you need the right part the first time, the part delivers the confidence of genuine OEM quality.
Key Features
- Stainless Steel Construction — Corrosion-resistant SS material withstands the heat cycles and moisture exposure inherent to engine coolant systems, maintaining tube integrity over extended service life.
- Genuine OEM Sourcing — Built to Multiquip's exact engineering tolerances for the Cummins QSL9 engine, ensuring correct tube diameter, length, and end fittings match the original installation.
- Confirmed QSL9 Fitment — Engineered specifically for QSL9-powered Multiquip equipment, so the part connects to existing fittings and brackets without alteration.
- Maintains Proper Coolant Flow — A correctly routed and sealed lower water line keeps coolant circulating at the right pressure and volume, protecting the QSL9 engine from overheating under load.
- Prevents Costly Cooling System Failures — A cracked, collapsed, or leaking lower water line can starve the engine of coolant rapidly; replacing with a genuine OEM tube eliminates that risk before it causes engine damage.
The lower water line tubing carries coolant from the lower portion of the engine cooling circuit — typically from the radiator outlet or water pump inlet — back into the engine block. It is a critical link in the closed-loop cooling system, and any leak, collapse, or restriction in this line will cause coolant loss and rapid engine temperature rise. On Cummins QSL9-powered equipment, maintaining the integrity of this line is essential to keeping the engine operating within its thermal limits during continuous heavy-duty use.
For questions about fitment or to confirm compatibility with your specific unit, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | EE45446 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lower Water Line Tubing SS Cummins QSL9 |
Compatibility & Fitment
| Name | Model |
|---|---|
| QSL9 | QSL9 |
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.
