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Dayco 72746 Radiator Coolant Hose - Upper
| Brand | Dayco 72746 |
|---|---|
| Position | Upper |
| Color | Black |
| End 1 Inside Diameter | 1 9/16 |
| End 1 Outside Diameter | 1 29/32 |
| End 2 Inside Diameter | 1 5/8 |
| End 2 Outside Diameter | 2 1/16 |
| End 3 Inside Diameter | 5/16 |
| End 3 Outside Diameter | 9/16 |
| Hose Type | Branched Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 18 1/2 |
| Product line | Curved Radiator Hose |
| Fits | Mercedes-Benz · 26 vehicles |
Curved radiator hose. Branched design routes coolant through a flexible, molded fit.
EPDM construction. Resists heat and coolant exposure for dependable cooling-system service.
SAE J20R4 Class D-1. Built to meet recognized hose performance standards.
Cross-references Duralast E72746 and Rein CHR0366R for the same application. See all 2.
Curved Upper Radiator Hose for Mercedes-Benz
Dayco 72746 is a curved branched radiator coolant hose built from EPDM and finished in black for upper cooling-system routing. It is engineered for select Mercedes-Benz CL500, S430, S500, S600, CL55 AMG, and S55 AMG applications, with OE-style dimensions that support proper coolant flow and fitment.
The Dayco Curved Radiator Hose line focuses on application-specific hose routing for vehicles that require formed bends and branched connections. This Dayco 72746 hose follows the original upper hose path and matches the dimensional requirements listed for the vehicle applications below.
- EPDM construction for coolant-system service
- Black finish for OE-style appearance
- Branched hose design for multi-port routing
- Upper radiator hose position
- SAE J20R4 Class D-1 and SAE J1684 Type EC specification support
- End 1 inside diameter: 1 9/16 in.; End 2 inside diameter: 1 5/8 in.; End 3 inside diameter: 5/16 in.
- Trunk height: 18 1/2 in.
This radiator coolant hose is used in upper cooling-system routing on Mercedes-Benz models that require a curved branched hose assembly. It cross-references Duralast E72746 and Rein CHR0366R for the same application. Dayco 72746 is a direct-fit style replacement for select Mercedes-Benz CL500, S430, and S500 models, along with S600, CL55 AMG, and S55 AMG applications listed below.
Vehicle Fitment
- Fits 2000-2006 Mercedes-Benz CL500, Upper
- Fits 2000-2006 Mercedes-Benz S430, Upper
- Fits 2000-2006 Mercedes-Benz S500, Upper
- Fits 2003 Mercedes-Benz S600, Upper
- Fits 2001-2002 Mercedes-Benz CL55 AMG, Upper
- Fits 2001-2002 Mercedes-Benz S55 AMG, Upper
Installation Notes
Verify hose routing, end diameters, and branch orientation against the removed part before installation. Inspect adjoining clamps, necks, and coolant passages for wear, corrosion, or residue, and replace any damaged mating components before refilling the system. After installation, refill with the correct coolant and check for leaks at operating temperature.
Quality Assurance
Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for cooling-system service. The EPDM construction and formed shape support consistent fitment on the specified Mercedes-Benz upper radiator hose applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Mercedes-Benz | CL500 | — | — | Upper | Curved Radiator Hose |
| 2006 | Mercedes-Benz | S430 | — | — | Upper | Curved Radiator Hose |
| 2006 | Mercedes-Benz | S500 | — | — | Upper | Curved Radiator Hose |
| 2005 | Mercedes-Benz | CL500 | 5.0L | V8 | Upper | Curved Radiator Hose |
| 2005 | Mercedes-Benz | S430 | 4.3L | V8 | Upper | Curved Radiator Hose |
| 2005 | Mercedes-Benz | S500 | — | — | Upper | Curved Radiator Hose |
| 2004 | Mercedes-Benz | CL500 | 5.0L | V8 | Upper | Curved Radiator Hose |
| 2004 | Mercedes-Benz | S430 | 4.3L | V8 | Upper | Curved Radiator Hose |
| 2004 | Mercedes-Benz | S500 | — | — | Upper | Curved Radiator Hose |
| 2003 | Mercedes-Benz | CL500 | 5.0L | V8 | Upper | Curved Radiator Hose |
| 2003 | Mercedes-Benz | S430 | 4.3L | V8 | Upper | Curved Radiator Hose |
| 2003 | Mercedes-Benz | S500 | — | — | Upper | Curved Radiator Hose |
| 2003 | Mercedes-Benz | S600 | — | — | Upper | Curved Radiator Hose |
| 2002 | Mercedes-Benz | CL500 | 5.0L | V8 | Upper | Curved Radiator Hose |
| 2002 | Mercedes-Benz | CL55 AMG | — | — | Upper | Curved Radiator Hose |
| 2002 | Mercedes-Benz | S430 | 4.3L | V8 | Upper | Curved Radiator Hose |
| 2002 | Mercedes-Benz | S500 | — | — | Upper | Curved Radiator Hose |
| 2002 | Mercedes-Benz | S55 AMG | — | — | Upper | Curved Radiator Hose |
| 2001 | Mercedes-Benz | CL500 | 5.0L | V8 | Upper | Curved Radiator Hose |
| 2001 | Mercedes-Benz | CL55 AMG | — | — | Upper | Curved Radiator Hose |
| 2001 | Mercedes-Benz | S430 | 4.3L | V8 | Upper | Curved Radiator Hose |
| 2001 | Mercedes-Benz | S500 | — | — | Upper | Curved Radiator Hose |
| 2001 | Mercedes-Benz | S55 AMG | — | — | Upper | Curved Radiator Hose |
| 2000 | Mercedes-Benz | CL500 | — | — | Upper | Curved Radiator Hose |
| 2000 | Mercedes-Benz | S430 | 4.3L | V8 | Upper | Curved Radiator Hose |
| 2000 | Mercedes-Benz | S500 | — | — | Upper | Curved Radiator Hose |
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