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Gates 21728 Radiator Coolant Hose - Lower
| Brand | Gates 21728 |
|---|---|
| Position | Lower |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 16.6 |
| Centerline Length | 422 |
| Contains Spring | No |
| End 1 Inside Diameter | 1.22 |
| End 1 Inside Diameter | 31 |
| End 2 Inside Diameter | 1.28 |
| End 2 Inside Diameter | 33 |
| Material | EPDM, Plastic |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
| Product line | Molded Coolant Hose |
| Fits | Chevrolet · 5 vehicles |
OEM-quality specifications. Molded coolant hose built to match replacement needs with confidence.
Molded design. Formed for coolant applications and a precise fit.
EPDM, plastic construction. Combines durable hose material with a rigid molded shape.
Cross-references Anchor 8105, Anchor 8418 and Carlson 41349 for the same application. See all 15.
Gates 21728 Molded Coolant Hose
The Gates 21728 molded coolant hose is a direct-fit radiator coolant hose for select Chevrolet Corvette applications. Built to OEM-quality specifications, it is shaped for the lower coolant routing used on the listed vehicles and helps simplify radiator hose replacement.
Key Features
- Brand: Gates Molded Coolant Hose line
- Part number: 21728
- Part type: radiator coolant hose
- Material: EPDM and plastic
- Molded construction for a formed factory-style route
- End inside diameters: 1.22 in (31 mm) and 1.28 in (33 mm)
- Centerline length: 16.6 in (422 mm)
- No spring and no quick-connect fittings
- Compatible With 1984-1985 Chevrolet Corvette, lower
- Compatible With 1986-1988 Chevrolet Corvette, lower, W/O Perf. or Sport Handling Pkg.
Product Details
Gates Molded Coolant Hose products are built for upper, lower, bypass, heater, and other coolant system applications, with dimensions and formed routing intended to match OEM-style replacement needs. The Gates 21728 is a molded lower radiator coolant hose for Chevrolet Corvette models listed in the fitment data, including 1984-1985 Corvette lower applications and 1986-1988 Corvette lower applications without the Performance or Sport Handling Package. This part cross-references Continental 61349 and Carlson 41349 for the same application.
Common Cooling System Issues
- Cracked or hardened lower radiator hose
- Coolant seepage at the hose body or ends
- Collapsed or misshaped hose routing from age and heat
- Loss of proper coolant flow through the lower radiator circuit
- Replacement need for a formed hose that matches factory routing
Installation Notes and Tips
Verify the hose shape, end diameters, and centerline length against the original part before installation. This hose is listed for lower-position use on the specified Chevrolet Corvette models, so confirm the vehicle configuration, including the note for 1986-1988 cars without the Performance or Sport Handling Package. Inspect adjoining clamps, radiator necks, and coolant passages for wear or corrosion before reassembly.
Quality Assurance
Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in the cooling system. The Gates 21728 is part of the brand’s molded coolant hose line, which covers a broad range of coolant applications with formed replacement options.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1988 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | W/O Perf. or Sport Handling Pkg.; Molded Coolant Hose |
| 1987 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | W/O Perf. or Sport Handling Pkg.; Molded Coolant Hose |
| 1986 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | W/O Perf. or Sport Handling Pkg.; Molded Coolant Hose |
| 1985 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
| 1984 | Chevrolet | Corvette | 5.7L | V8 | GAS | Lower | Molded Coolant Hose |
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