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Dayco 71500 Radiator Coolant Hose - Lower
| Brand | Dayco 71500 |
|---|---|
| Position | Lower |
| Color | Black |
| End 1 Inside Diameter | 1 1/2 |
| End 2 Inside Diameter | 1 1/2 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 17 |
| Product line | Curved Radiator Hose |
| Fits | Buick, Oldsmobile, and Pontiac · 46 vehicles |
EPDM construction. Resists heat and coolant exposure for dependable hose performance.
Single I.D. hose. Provides a straightforward coolant flow path in a flexible design.
Curved radiator hose. Formed for a smooth, space-saving routing profile.
Cross-references ACDelco 24193L, Atlas MC230 and CARQUEST 21585 for the same application. See all 17.
Dayco Curved Radiator Hose for Lower Cooling Service
The Dayco 71500 is a curved radiator coolant hose built for lower radiator connections in select Buick, Oldsmobile, and Pontiac applications. Made from EPDM rubber and formed as a single I.D. hose, it provides a direct replacement option for vehicles that need a 1 1/2 in. inside diameter at both ends.
Key Features
- EPDM construction for coolant-system service
- Black finish for OE-style appearance
- 1 1/2 in. inside diameter at both ends
- Single I.D. hose design
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Curved radiator hose profile for lower hose routing
- Dayco 71500 replacement hose for select GM vehicles
Product Details
Dayco Curved Radiator Hose 71500 is engineered for lower radiator hose applications where a formed hose is required to follow the factory routing. The EPDM rubber construction is suited for coolant exposure and temperature cycling, while the curved shape helps match the original hose path on vehicles such as the Buick LeSabre, Buick Park Avenue, Oldsmobile 88, Oldsmobile 98, Pontiac Bonneville, and Oldsmobile Delta 88. This hose cross-references ACDelco 24193L and Gates 21585 for the same application.
Vehicle Fitment
- Fits 1986-1995 Buick LeSabre, Lower
- Fits 1991-1995 Buick Park Avenue, Lower
- Fits 1992-1995 Oldsmobile 88, Lower
- Fits 1986-1995 Oldsmobile 98, Lower
- Fits 1987-1995 Pontiac Bonneville, Lower
- Fits 1986-1991 Oldsmobile Delta 88, Lower
Common Replacement Uses
- Cracked or hardened lower radiator hose
- Coolant seepage at the hose body
- Loss of flexibility from age and heat cycling
- Incorrect hose shape or routing on a replacement repair
- Restoring proper coolant flow on GM full-size sedans
Installation Notes and Tips
Verify the hose routing, end diameters, and lower radiator location before installation. Inspect the radiator neck and engine-side connection for corrosion, debris, or sharp edges that can affect sealing. Replace clamps as needed and confirm the hose sits without twisting after the cooling system is filled and bled.
Quality Assurance
This Dayco radiator coolant hose is manufactured to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for coolant hose service. The formed EPDM construction and application-specific shape support a direct-fit replacement for the listed Buick, Oldsmobile, and Pontiac models.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Buick | LeSabre | — | — | Lower | Curved Radiator Hose |
| 1995 | Buick | Park Avenue | — | — | Lower | Curved Radiator Hose |
| 1995 | Oldsmobile | 88 | — | — | Lower | Curved Radiator Hose |
| 1995 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1995 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1994 | Buick | LeSabre | — | — | Lower | Curved Radiator Hose |
| 1994 | Buick | Park Avenue | — | — | Lower | Curved Radiator Hose |
| 1994 | Oldsmobile | 88 | — | — | Lower | Curved Radiator Hose |
| 1994 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1994 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1993 | Buick | LeSabre | — | — | Lower | Curved Radiator Hose |
| 1993 | Buick | Park Avenue | — | — | Lower | Curved Radiator Hose |
| 1993 | Oldsmobile | 88 | — | — | Lower | Curved Radiator Hose |
| 1993 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1993 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1992 | Buick | LeSabre | — | — | Lower | Curved Radiator Hose |
| 1992 | Buick | Park Avenue | — | — | Lower | Curved Radiator Hose |
| 1992 | Oldsmobile | 88 | — | — | Lower | Curved Radiator Hose |
| 1992 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1992 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1991 | Buick | LeSabre | — | — | Lower | Curved Radiator Hose |
| 1991 | Buick | Park Avenue | — | — | Lower | Curved Radiator Hose |
| 1991 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1991 | Oldsmobile | Delta 88 | — | — | Lower | Curved Radiator Hose |
| 1991 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1990 | Buick | LeSabre | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1990 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1990 | Oldsmobile | Delta 88 | — | — | Lower | Curved Radiator Hose |
| 1990 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1989 | Buick | LeSabre | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1989 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1989 | Oldsmobile | Delta 88 | — | — | Lower | Curved Radiator Hose |
| 1989 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1988 | Buick | LeSabre | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1988 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1988 | Oldsmobile | Delta 88 | — | — | Lower | Curved Radiator Hose |
| 1988 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1987 | Buick | LeSabre | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1987 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1987 | Oldsmobile | Delta 88 | — | — | Lower | Curved Radiator Hose |
| 1987 | Pontiac | Bonneville | — | — | Lower | Curved Radiator Hose |
| 1986 | Buick | LeSabre | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1986 | Buick | LeSabre | 3.0L | V6 | Lower | Curved Radiator Hose |
| 1986 | Oldsmobile | 98 | — | — | Lower | Curved Radiator Hose |
| 1986 | Oldsmobile | Delta 88 | 3.8L | V6 | Lower | Curved Radiator Hose |
| 1986 | Oldsmobile | Delta 88 | 3.0L | V6 | Lower | Curved Radiator Hose |
| No rows match your filter. | ||||||