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Gates 21031 Radiator Coolant Hose - Lower
| Brand | Gates 21031 |
|---|---|
| Position | Lower |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 23.1 |
| Centerline Length | 587 |
| Contains Spring | No |
| End 1 Inside Diameter | 1.5 |
| End 1 Inside Diameter | 38 |
| End 2 Inside Diameter | 1.75 |
| End 2 Inside Diameter | 44 |
| Material | EPDM |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
| Product line | Molded Coolant Hose |
| Fits | Chevrolet · 8 vehicles |
OEM-quality specifications. Built for radiator hose replacements with a molded design.
EPDM construction. Resists heat and coolant exposure for dependable service.
Molded coolant hose. Fits coolant applications with a formed shape for easier routing.
Cross-references Champion Spark Plug 863, Continental 61047 and Dayco 70863 for the same application. See all 17.
Gates 21031 Molded Coolant Hose
The Gates 21031 molded coolant hose is built for lower radiator hose service on select Chevrolet Corvette applications. Made from EPDM and formed to OEM-quality specifications, it provides the correct molded shape for a direct replacement on the listed vehicles.
Gates Molded Coolant Hose products are engineered for upper, lower, bypass, heater, and other coolant routing needs. This line is built to cover a wide range of replacement applications, helping reduce the time spent sourcing a radiator hose replacement for the OE dealer.
Key Features
- Part number: 21031
- Brand: Gates Molded Coolant Hose
- Material: EPDM
- Molded hose construction for proper routing
- End 1 inside diameter: 1.5 in. (38 mm)
- End 2 inside diameter: 1.75 in. (44 mm)
- Centerline length: 23.1 in. (587 mm)
- Contains spring: No
- Branch quantity: 0
- Number of quick connect fittings: 0
Application Details
Fits 1977-1982 Chevrolet Corvette, lower. Fits 1976 Chevrolet Corvette, lower, late. This Gates 21031 lower radiator hose is a direct-fit molded coolant hose for the listed Chevrolet Corvette years and positions.
This part cross-references Dayco 70863 and Continental 61047 for the same application.
What It Helps Address
- Cracked or deteriorated lower radiator hose
- Coolant leaks at the hose body or ends
- Incorrect hose routing from a non-molded replacement
- Fitment issues on Chevrolet Corvette lower hose service
- Cooling system maintenance on 1976-1982 Corvette models
Installation Notes
Verify end diameters, centerline length, and molded shape against the removed hose before installation. Inspect hose clamps, mating surfaces, and nearby cooling system components for wear or corrosion. Confirm the lower hose routing matches the vehicle’s original configuration for the listed Chevrolet Corvette applications.
Quality Assurance
Gates manufactures this molded coolant hose to OEM-quality specifications for the listed fitment. The EPDM construction and molded profile support accurate replacement on the specified Chevrolet Corvette lower hose applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1982 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
| 1981 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
| 1980 | Chevrolet | Corvette | 5.0L | V8 | GAS | Lower | Molded Coolant Hose |
| 1980 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
| 1979 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
| 1978 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
| 1977 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
| 1976 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Late; Molded Coolant Hose |
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