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Dayco 72747 Radiator Coolant Hose - Upper
| Brand | Dayco 72747 |
|---|---|
| Position | Upper |
| Color | Black |
| End 1 Inside Diameter | 1 1/4 |
| End 1 Outside Diameter | 1 13/16 |
| End 2 Inside Diameter | 1 9/16 |
| End 2 Outside Diameter | 1 7/8 |
| Hose Type | Dual I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 20 |
| Product line | Curved Radiator Hose |
| Fits | Mercedes-Benz · 6 vehicles |
Curved radiator hose. Formed for a cleaner routing path in cooling systems.
EPDM construction. Resists heat and coolant exposure for dependable service.
Dual I.D. hose. Provides two inside diameters in one cooling hose.
Cross-references Duralast E72747 and Rein CHR0371R for the same application. See all 2.
Dayco Curved Radiator Hose 72747
Dayco 72747 is a curved radiator coolant hose built for the upper cooling circuit on select Mercedes-Benz ML350 models. It uses EPDM construction and a dual I.D. hose profile to match the varying connection sizes found in this application.
Key Features
- EPDM rubber construction for coolant-system service
- Black finish for a clean OE-style appearance
- Dual I.D. hose design with 1 1/4 in. and 1 9/16 in. inside diameters
- Outside diameters measure 1 13/16 in. and 1 7/8 in.
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Curved radiator hose profile for upper hose routing
Detailed Description
This Dayco curved radiator hose is engineered for the upper coolant path on 2006-2011 Mercedes-Benz ML350 models. Part number 72747 uses EPDM material for coolant exposure and temperature cycling, while the dual I.D. design supports the different end sizes required by the vehicle’s hose connections. If you are searching for a Mercedes-Benz ML350 upper radiator hose or a Dayco 72747 replacement hose, this part matches the listed application.
Dayco’s Curved Radiator Hose line focuses on formed coolant hoses that follow factory routing and connection geometry. For this Mercedes-Benz ML350 application, the curved shape helps maintain proper hose alignment in the engine bay and supports a direct replacement for the upper radiator hose location.
This part cross-references Duralast E72747 and Rein CHR0371R for the same application.
What It Helps Address
- Cracked or aged upper radiator hose material
- Coolant leaks at the hose connection points
- Improper hose routing from a damaged formed hose
- Softening or swelling from heat and coolant exposure
- Replacement needs for a Mercedes-Benz ML350 upper coolant hose
Installation Notes and Tips
Verify the end diameters and routing before installation to confirm the hose matches the original upper radiator hose path. Inspect adjoining clamps, necks, and coolant fittings for wear or corrosion before installing Dayco 72747. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.
Quality Assurance
Dayco 72747 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting a specification-based replacement for the listed Mercedes-Benz ML350 fitment.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2011 | Mercedes-Benz | ML350 | 3.5L | V6 | Upper | Curved Radiator Hose |
| 2010 | Mercedes-Benz | ML350 | 3.5L | V6 | Upper | Curved Radiator Hose |
| 2009 | Mercedes-Benz | ML350 | — | — | Upper | Curved Radiator Hose |
| 2008 | Mercedes-Benz | ML350 | — | — | Upper | Curved Radiator Hose |
| 2007 | Mercedes-Benz | ML350 | — | — | Upper | Curved Radiator Hose |
| 2006 | Mercedes-Benz | ML350 | — | — | Upper | Curved Radiator Hose |
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