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Dayco 72070 Radiator Coolant Hose - Upper - Filler Neck To Engine
| Brand | Dayco 72070 |
|---|---|
| Position | Upper - Filler Neck To Engine |
| Color | Black |
| Contains Protective Sleeve | Y |
| End 1 Inside Diameter | 1 5/32 |
| End 2 Inside Diameter | 1 5/32 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 12 |
| Product line | Curved Radiator Hose |
| Fits | Toyota and Scion · 25 vehicles |
OE-style curved hose. Single I.D. construction helps simplify replacement.
EPDM rubber. Built for dependable coolant transfer and heat resistance.
Protective sleeve included. Adds extra abrasion protection where the hose runs.
Cross-references ACDelco 22381M, CARQUEST 22556 and Duralast D72070 for the same application. See all 7.
Curved Radiator Hose for Toyota and Scion
Dayco 72070 is a curved radiator coolant hose built for upper coolant routing from the filler neck to the engine. Made from EPDM with a protective sleeve, it is shaped for the specified Toyota and Scion applications and sized with a 1 5/32 in. inside diameter at both ends.
Key Features
- EPDM construction for coolant-system service
- Curved radiator hose design for upper filler neck to engine routing
- 1 5/32 in. inside diameter at both ends
- Protective sleeve included; heat shield not included
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Black finish for a factory-style appearance
Product Details
This Dayco Curved Radiator Hose line is built for direct coolant transfer in applications that require a formed upper hose path. Part number 72070 is listed for 2006-2018 Toyota Yaris, 2004-2006 Scion xA, 2004-2006 Scion xB, and 2000-2005 Toyota Echo in the upper filler neck to engine position. The hose uses EPDM material for coolant resistance and includes a protective sleeve to help manage exposure in the engine bay. This part cross-references Toyota 16571-21020 for the same application.
Common Cooling System Issues It Can Address
- Cracked or hardened upper radiator hose
- Coolant seepage at the hose connection points
- Collapsed or softened hose sections from age and heat
- Restricted coolant flow caused by a deteriorated hose
- Incorrect hose shape or fit on the upper filler neck to engine route
Installation Notes and Tips
Verify the hose routing before installation and confirm the end inside diameter matches the vehicle connection points. Inspect the filler neck, engine inlet, and clamps for wear or corrosion before installing Dayco 72070. For best results, route the hose without twists and ensure the protective sleeve is positioned where heat exposure is highest.
Quality Assurance
Dayco 72070 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for radiator coolant hose applications. The EPDM construction and formed profile support consistent fitment on the listed Toyota Yaris, Scion xA, Scion xB, and Toyota Echo applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Toyota | Yaris | 1.5L | L4 | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2017 | Toyota | Yaris | 1.5L | L4 | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2016 | Toyota | Yaris | 1.5L | L4 | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2015 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2014 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2013 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2012 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2011 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2010 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2009 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2008 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2007 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2006 | Scion | xA | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2006 | Scion | xB | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2006 | Toyota | Yaris | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2005 | Scion | xA | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2005 | Scion | xB | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2005 | Toyota | Echo | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2004 | Scion | xA | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2004 | Scion | xB | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2004 | Toyota | Echo | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2003 | Toyota | Echo | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2002 | Toyota | Echo | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2001 | Toyota | Echo | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
| 2000 | Toyota | Echo | — | — | Upper - Filler Neck To Engine | Curved Radiator Hose |
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