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Dayco 72986 Radiator Coolant Hose - Upper
| Brand | Dayco 72986 |
|---|---|
| Position | Upper |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 3/16 |
| End 2 Inside Diameter | 1 1/4 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | Y |
| End 1 Outside Diameter | 1 9/16 |
| End 2 Outside Diameter | 1 5/8 |
| Hose Type | Dual i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 17 1/2 |
| Product line | Curved Radiator Hose |
| Fits | Mazda · 6 vehicles |
Curved hose design. Helps route coolant smoothly with a cleaner, more flexible fit.
EPDM construction. Resists heat and coolant exposure for dependable service.
Protective sleeve included. Adds an extra layer of abrasion protection where needed.
Dayco Curved Radiator Hose for Mazda CX-7
Dayco 72986 is a curved radiator coolant hose built for the upper cooling circuit on select Mazda CX-7 models. It uses EPDM construction with a black finish and a protective sleeve to help manage heat and abrasion in the engine bay.
Compatible with 2007-2012 Mazda CX-7, upper. This Dayco curved radiator hose is shaped for the application and built to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications.
Key Features
- Part number: 72986
- EPDM rubber construction for coolant-system service
- Curved radiator hose design for the upper hose route
- Dual I.D. hose with 1 3/16 in. end 1 inside diameter and 1 1/4 in. end 2 inside diameter
- Protective sleeve included; heat shield not included
- Black finish for a clean OE-style appearance
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements
Product Details
Dayco’s Curved Radiator Hose line focuses on application-specific hose routing and fitment for cooling-system service. For the Mazda CX-7, part number 72986 follows the upper hose path and uses a dual inside-diameter design to match the connection points called out for this vehicle. The hose measures 17 1/2 in. in trunk height and includes a protective sleeve to help guard the hose surface where routing or nearby components create added wear.
Use Dayco 72986 when replacing a worn upper radiator hose on 2007-2012 Mazda CX-7 models. The EPDM material is selected for coolant exposure, while the curved profile supports a direct replacement for the original hose shape on the Mazda CX-7 cooling system.
Common Cooling System Issues
- Cracked or hardened upper radiator hose material
- Coolant seepage at the hose connection points
- Swelling, soft spots, or hose collapse under operating temperature
- Wear from engine-bay contact where a protective sleeve is needed
- Loss of proper coolant flow through the upper hose route
Installation Notes
Verify the hose routing and end diameters before installation on your Mazda CX-7. Inspect the radiator necks, clamps, and adjoining cooling components for wear or corrosion before installing Dayco 72986. Confirm the hose is seated fully at both ends and routed without twist or tension.
Quality Assurance
Dayco manufactures this radiator coolant hose to published SAE specifications for cooling-system service. Part number 72986 is built for the upper hose position on 2007-2012 Mazda CX-7 applications and is intended to match the original hose form and connection sizes for that vehicle.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Mazda | CX-7 | 2.3L | L4 | Upper | Curved Radiator Hose |
| 2011 | Mazda | CX-7 | 2.3L | L4 | Upper | Curved Radiator Hose |
| 2010 | Mazda | CX-7 | 2.3L | L4 | Upper | Curved Radiator Hose |
| 2009 | Mazda | CX-7 | — | — | Upper | Curved Radiator Hose |
| 2008 | Mazda | CX-7 | — | — | Upper | Curved Radiator Hose |
| 2007 | Mazda | CX-7 | — | — | Upper | Curved Radiator Hose |
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