/live/media/DY/DY_70530_Fro.jpg)
Dayco 70530 Radiator Coolant Hose - Lower
| Brand | Dayco 70530 |
|---|---|
| Position | Lower |
| Color | Black |
| End 1 Inside Diameter | 1 1/2 |
| End 2 Inside Diameter | 1 3/4 |
| Hose Type | Dual I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 16 |
| Product line | Curved Radiator Hose |
| Fits | Chevrolet, GMC, Oldsmobile, and American Motors · 30 vehicles |
Curved radiator hose. Dual I.D. design for flexible coolant routing.
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 22029M, AMC 3175105 and CARQUEST 20537 for the same application. See all 14.
Dayco 70530 Curved Radiator Hose
Dayco 70530 is a curved radiator coolant hose built for lower cooling-system routing on select Chevrolet, GMC, and Oldsmobile applications. This dual I.D. hose uses EPDM construction and follows SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for the listed fitments.
Key Features
- EPDM rubber construction for coolant hose service
- Dual I.D. hose design with 1 1/2 in. end 1 inside diameter and 1 3/4 in. end 2 inside diameter
- Black finish
- Curved radiator hose profile for lower hose routing
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements
- Dayco Curved Radiator Hose line for direct-fit cooling system replacement
Product Details
The Dayco Curved Radiator Hose line focuses on molded cooling-system routing for vehicles that need a formed lower hose shape rather than a straight universal hose. Part number 70530 is a lower radiator coolant hose for applications such as Chevrolet S10 Blazer, Chevrolet S10, GMC Jimmy, GMC Sonoma, GMC S15 Jimmy, GMC S15, and Oldsmobile Bravada. If you are searching for a lower radiator hose for 1988-1994 Chevrolet S10 Blazer or a lower coolant hose for 1991-1994 GMC Jimmy, Dayco 70530 matches the listed fitment and hose dimensions.
This part cross-references Gates 20537 and ACDelco 22029M for the same application.
Common Cooling System Issues
- Lower radiator hose cracking or splitting
- Coolant leaks at the hose connection points
- Softening, swelling, or collapse from heat and age
- Restricted coolant flow caused by hose deterioration
- Incorrect hose shape or diameter on replacement service
Installation Notes and Tips
Verify the hose routing, end diameters, and lower-position fitment before installation. Confirm the vehicle application against the listed years and models, including 1988-1994 Chevrolet S10 Blazer, 1992-1994 GMC Jimmy, 1991-1994 Oldsmobile Bravada, 1988-1993 Chevrolet S10, 1991-1993 GMC Sonoma, 1988-1991 GMC S15 Jimmy, and 1988-1990 GMC S15. Inspect clamps, necks, and adjacent cooling components for wear before installing the new hose.
Quality Assurance
Dayco manufactures this hose to meet the stated SAE specifications for the listed applications, supporting consistent fit and cooling-system service on compatible Chevrolet S10 Blazer, GMC Jimmy, and related models. Part number 70530 is built as a formed replacement hose for the specified lower radiator hose positions.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1994 | Chevrolet | S10 Blazer | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1994 | GMC | Jimmy | — | — | Lower | Curved Radiator Hose |
| 1994 | Oldsmobile | Bravada | — | — | Lower | Curved Radiator Hose |
| 1993 | Chevrolet | S10 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1993 | Chevrolet | S10 Blazer | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1993 | GMC | Jimmy | — | — | Lower | Curved Radiator Hose |
| 1993 | GMC | Sonoma | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1993 | Oldsmobile | Bravada | — | — | Lower | Curved Radiator Hose |
| 1992 | Chevrolet | S10 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1992 | Chevrolet | S10 Blazer | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1992 | GMC | Jimmy | — | — | Lower | Curved Radiator Hose |
| 1992 | GMC | Sonoma | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1992 | Oldsmobile | Bravada | — | — | Lower | Curved Radiator Hose |
| 1991 | Chevrolet | S10 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1991 | Chevrolet | S10 Blazer | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1991 | GMC | S15 Jimmy | — | — | Lower | Curved Radiator Hose |
| 1991 | GMC | Sonoma | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1991 | Oldsmobile | Bravada | — | — | Lower | Curved Radiator Hose |
| 1990 | Chevrolet | S10 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1990 | Chevrolet | S10 Blazer | — | — | Lower | Curved Radiator Hose |
| 1990 | GMC | S15 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1990 | GMC | S15 Jimmy | — | — | Lower | Curved Radiator Hose |
| 1989 | Chevrolet | S10 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1989 | Chevrolet | S10 Blazer | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1989 | GMC | S15 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1989 | GMC | S15 Jimmy | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1988 | Chevrolet | S10 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1988 | Chevrolet | S10 Blazer | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1988 | GMC | S15 | 4.3L | V6 | Lower | Curved Radiator Hose |
| 1988 | GMC | S15 Jimmy | 4.3L | V6 | Lower | Curved Radiator Hose |
| No rows match your filter. | ||||||