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Dayco 71700 Radiator Coolant Hose - Lower
| Brand | Dayco 71700 |
|---|---|
| Position | Lower |
| Color | Black |
| End 1 Inside Diameter | 1 9/32 |
| End 2 Inside Diameter | 1 17/32 |
| Hose Type | Dual 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 | Buick, Chevrolet, Pontiac, and Oldsmobile · 32 vehicles |
EPDM construction. Resists heat and coolant exposure for dependable hose performance.
Dual I.D. hose. Provides two inside diameters in one curved coolant hose design.
SAE J20R4 Class D-1. Built to meet recognized coolant hose performance standards.
Cross-references ACDelco 22326M, CARQUEST 22264 and Duralast C71700 for the same application. See all 14.
Dayco 71700 Curved Radiator Hose
Dayco 71700 is a curved lower radiator coolant hose built for vehicles that need a dual I.D. hose with different end sizes. Made from EPDM and finished in black, it is shaped for lower cooling-system routing on select Buick, Chevrolet, Oldsmobile, and Pontiac applications.
Key Features
- EPDM construction for cooling-system service
- Black finish for a clean OE-style appearance
- Dual I.D. hose design with 1 9/32 in. and 1 17/32 in. inside diameters
- Curved radiator hose profile for lower hose routing
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Compatible with lower hose applications on Buick Regal, Chevrolet Impala, Chevrolet Monte Carlo, Pontiac Grand Prix, Chevrolet Lumina, and Oldsmobile Intrigue
Product Details
This Dayco Curved Radiator Hose line is made for cooling-system replacement where a formed lower hose is required. Part number 71700 uses EPDM rubber for heat and coolant exposure, and its dual inside diameter design matches the different connection sizes found in the listed applications. It is a direct-fit lower radiator coolant hose for 1994-2004 Buick Regal, 2000-2003 Chevrolet Impala, 1998-2003 Chevrolet Monte Carlo, 1997-2003 Pontiac Grand Prix, 1998-1999 Chevrolet Lumina, and 1998-1999 Oldsmobile Intrigue. This part cross-references Gates 22264 for the same application.
Common Replacement Reasons
- Cracked or hardened lower radiator hose
- Coolant seepage at the hose connection
- Swelling, soft spots, or hose collapse
- Restricted coolant flow from a deteriorated hose
- Replacement during cooling-system service on Buick Regal, Chevrolet Impala, or Pontiac Grand Prix models
Installation Notes and Tips
Verify the end diameters before installation and compare the hose shape to the original lower radiator hose routing. Inspect hose clamps, radiator necks, and adjoining cooling-system components for wear or corrosion before fitting Dayco 71700. Confirm the application by year, make, model, and lower position before installation.
Quality Assurance
Dayco 71700 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator hose service. The Dayco Curved Radiator Hose line is engineered for cooling-system replacement where OE-style fit and material specification matter.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 2003 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 2003 | Chevrolet | Impala | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2003 | Chevrolet | Monte Carlo | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2003 | Pontiac | Grand Prix | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2002 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 2002 | Chevrolet | Impala | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2002 | Chevrolet | Monte Carlo | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2002 | Pontiac | Grand Prix | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2001 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 2001 | Chevrolet | Impala | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2001 | Chevrolet | Monte Carlo | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2001 | Pontiac | Grand Prix | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2000 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 2000 | Chevrolet | Impala | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2000 | Chevrolet | Monte Carlo | 3.8L | V6 | Lower | Curved Radiator Hose |
| 2000 | Pontiac | Grand Prix | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1999 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 1999 | Chevrolet | Lumina | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1999 | Chevrolet | Monte Carlo | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1999 | Oldsmobile | Intrigue | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1999 | Pontiac | Grand Prix | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1998 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 1998 | Chevrolet | Lumina | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1998 | Chevrolet | Monte Carlo | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1998 | Oldsmobile | Intrigue | — | — | Lower | Curved Radiator Hose |
| 1998 | Pontiac | Grand Prix | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1997 | Buick | Regal | — | — | Lower | Curved Radiator Hose |
| 1997 | Pontiac | Grand Prix | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1996 | Buick | Regal | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1995 | Buick | Regal | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1994 | Buick | Regal | 3.8L | V6 | Lower | Curved Radiator Hose |
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