OE Quality
60-Day Returns

Dayco 71722 Radiator Coolant Hose - Upper
Overview of Dayco Curved Radiator Hose 71722
The Dayco Curved Radiator Hose 71722 is designed for reliable coolant flow in Chevrolet and GMC vehicles. Engineered with durable EPDM material and a protective sleeve, this hose supports efficient engine cooling for models like the Blazer, Jimmy, S10, and Sonoma.
- Constructed from high-quality EPDM material for heat and chemical resistance
- Black color with a protective sleeve for added durability
- Single inside diameter hose with 1 9/32 inch ends on both sides
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Trunk height of 15 inches for precise fitment
- Compatible with Chevrolet Blazer, GMC Jimmy, S10, and Sonoma models
Detailed Product Description
The Dayco Curved Radiator Hose 71722 is a single inside diameter hose constructed from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a black finish and includes a protective sleeve to guard against abrasion and premature wear. Both ends have an inside diameter of 1 9/32 inches, ensuring a secure connection within the cooling system. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications. With a trunk height of 15 inches, it is designed to fit specific radiator hose routing requirements in select Chevrolet and GMC vehicles.
About the Curved Radiator Hose Product Line
The Dayco Curved Radiator Hose line focuses on providing hoses shaped to accommodate specific engine bay layouts, reducing stress and improving coolant flow. This product line includes hoses with protective sleeves to enhance durability in demanding conditions. The 71722 part is a representative of this line, offering a curved design tailored for Chevrolet and GMC trucks and SUVs, ensuring proper fit and function within the cooling system.
Common Applications and Problem Solving
- Replacement for cracked or leaking radiator coolant hoses in Chevrolet Blazer and GMC Jimmy
- Solves coolant flow restrictions caused by damaged or collapsed hoses in S10 and Sonoma models
- Prevents overheating issues related to compromised radiator hose integrity
- Addresses wear from abrasion due to engine vibrations or contact with other components
- Restores proper coolant circulation to maintain engine temperature stability
Installation Notes and Tips
Ensure the engine is cool before removing the old radiator hose to avoid burns. Inspect hose connections and clamps for corrosion or damage and replace if necessary. When installing the Dayco Curved Radiator Hose 71722, verify that the hose routing matches the original to prevent kinks or undue stress. Tighten clamps securely but avoid over-tightening to prevent hose damage. Check for leaks after installation by running the engine and monitoring coolant flow.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 71722 to meet SAE specifications, ensuring consistent quality and performance. The EPDM material and protective sleeve contribute to long service life under normal operating conditions. Warranty details should be confirmed with the original equipment provider or distributor, as coverage may vary.
| Brand | Dayco |
|---|---|
| Part Number | 71722 |
| Position | Curved Radiator Hose, Upper |
| Color | Black |
| Contains Protective Sleeve | Y |
| End 1 Inside Diameter | 1 9/32 |
| End 2 Inside Diameter | 1 9/32 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 15 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Chevrolet | Blazer | Upper | Curved Radiator Hose | ||
| 1995 | Chevrolet | S10 | 4.3L | V6 | Upper | Curved Radiator Hose |
| 1995 | GMC | Jimmy | Upper | Curved Radiator Hose | ||
| 1995 | GMC | Sonoma | 4.3L | V6 | Upper | Curved Radiator Hose |
| 1994 | Chevrolet | S10 | 4.3L | V6 | Upper | Curved Radiator Hose |
| 1994 | GMC | Sonoma | 4.3L | V6 | Upper | Curved Radiator Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.