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Dayco 71928 Radiator Coolant Hose - Lower
| Brand | Dayco 71928 |
|---|---|
| Position | Lower |
| Color | Black |
| 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 | 11 1/2 |
| Product line | Curved Radiator Hose |
| Fits | Scion and Toyota · 17 vehicles |
Curved hose design. Helps route coolant smoothly through the cooling system.
EPDM construction. Resists heat and coolant exposure for dependable service.
SAE J20R4 Class D-1. Built to meet demanding coolant hose specifications.
Cross-references ACDelco 22345M, ACDelco 22367M and CARQUEST 22381 for the same application. See all 11.
Curved Lower Radiator Hose for Toyota and Scion
The Dayco 71928 is a curved radiator coolant hose built for lower cooling-system routing on select Toyota and Scion applications. Made from EPDM rubber and finished in black, it provides a direct-fit replacement for vehicles that use a 1 5/32 in. inside diameter at both ends.
Key Features
- Dayco Curved Radiator Hose, part number 71928
- EPDM construction for coolant hose service
- Black finish for OE-style appearance
- Single I.D. hose with 1 5/32 in. inside diameter at both ends
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Lower radiator hose routing for select Toyota Echo, Toyota RAV4, Scion xA, and Scion xB applications
Product Details
Dayco 71928 is a curved radiator hose from the Dayco Curved Radiator Hose line, built for lower coolant transfer in vehicles that require a formed hose shape. The EPDM rubber construction is suited for engine-cooling system use, while the curved profile helps match the factory routing found on the Toyota Echo, Toyota RAV4, Scion xA, and Scion xB. This part cross-references Duralast D71928 for the same application.
Compatible With 2004-2006 Scion xA, lower; 2004-2006 Scion xB, lower; 2000-2005 Toyota Echo, lower; and 1996-2000 Toyota RAV4, lower. The Dayco 71928 is a practical replacement when servicing a lower radiator hose on these vehicles and when restoring proper coolant flow through the cooling system.
Common Uses
- Replacing a cracked or split lower radiator hose
- Restoring coolant circulation in a leaking cooling system
- Addressing hose hardening, swelling, or age-related wear
- Correcting a hose that no longer holds its formed shape
- Servicing Toyota Echo, Toyota RAV4, Scion xA, or Scion xB lower hose routing
Installation Notes and Tips
Verify end diameters, hose routing, and lower-position fitment before installation. Inspect adjoining necks, clamps, and coolant passages for corrosion or damage, and replace worn clamps as needed during service. Confirm the hose follows the original curved path without kinks or twist before refilling and bleeding the cooling system.
Quality Assurance
This hose is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for coolant hose applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Scion | xA | — | — | Lower | Curved Radiator Hose |
| 2006 | Scion | xB | — | — | Lower | Curved Radiator Hose |
| 2005 | Scion | xA | — | — | Lower | Curved Radiator Hose |
| 2005 | Scion | xB | — | — | Lower | Curved Radiator Hose |
| 2005 | Toyota | Echo | — | — | Lower | Curved Radiator Hose |
| 2004 | Scion | xA | — | — | Lower | Curved Radiator Hose |
| 2004 | Scion | xB | — | — | Lower | Curved Radiator Hose |
| 2004 | Toyota | Echo | — | — | Lower | Curved Radiator Hose |
| 2003 | Toyota | Echo | — | — | Lower | Curved Radiator Hose |
| 2002 | Toyota | Echo | — | — | Lower | Curved Radiator Hose |
| 2001 | Toyota | Echo | — | — | Lower | Curved Radiator Hose |
| 2000 | Toyota | Echo | — | — | Lower | Curved Radiator Hose |
| 2000 | Toyota | RAV4 | 2.0L | L4 | Lower | Curved Radiator Hose |
| 1999 | Toyota | RAV4 | 2.0L | L4 | Lower | Curved Radiator Hose |
| 1998 | Toyota | RAV4 | 2.0L | L4 | Lower | Curved Radiator Hose |
| 1997 | Toyota | RAV4 | — | — | Lower | Curved Radiator Hose |
| 1996 | Toyota | RAV4 | — | — | Lower | Curved Radiator Hose |
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