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Gates 26603 Radiator Coolant Hose
Reliable Cooling Solution for Select Cadillac and Ford Models
The Gates Flexible Coolant Hose (Heavy-Duty) part number 26603 is engineered to provide durable and efficient coolant flow for various vehicle applications. Designed with quality materials and precise dimensions, this radiator coolant hose supports optimal engine temperature regulation in vehicles like the Cadillac DeVille and Ford F-250.
Key Features of Gates Flexible Coolant Hose 26603
- Constructed from EPDM rubber and steel for enhanced durability and heat resistance
- Uniform inside diameter of 1.75 inches on both ends for consistent coolant flow
- Centerline length of 11 inches (279 mm) to fit specific radiator connections
- Heavy-duty design suitable for demanding cooling system requirements
- Compatible with multiple makes including Cadillac, Ford, Jaguar, Lincoln, Mercury, and Pontiac
About the Flexible Coolant Hose (Heavy-Duty) Product Line
The Gates Flexible Coolant Hose (Heavy-Duty) line focuses on delivering robust radiator hoses that withstand high temperatures and pressure conditions. This product line emphasizes material quality and dimensional accuracy to ensure reliable performance in heavy-duty and classic vehicle applications. Part number 26603 exemplifies these standards with its EPDM and steel construction and precise fitment specifications.
Detailed Product Description
This radiator coolant hose features EPDM rubber, known for its resistance to heat, ozone, and coolant chemicals, combined with steel reinforcement to maintain structural integrity under pressure. Both ends have an inside diameter of 1.75 inches, ensuring a secure and leak-free connection to the cooling system. The hose measures 11 inches (279 mm) in centerline length, making it suitable for specific radiator setups found in vehicles such as the Cadillac Eldorado and Ford F-100. The hose is molded without knobs and is designed for flexible installation without compromising durability.
Common Applications and Issues Addressed
- Replacement of worn or cracked radiator coolant hoses in Cadillac Continental and Lincoln Continental models
- Resolving coolant leaks caused by hose degradation in Ford F-350 and Mercury Marauder vehicles
- Maintaining proper engine temperature by ensuring consistent coolant flow in Jaguar XJ6 and Pontiac Catalina
- Upgrading cooling system components in classic and commercial chassis vehicles
- Preventing overheating issues related to faulty or damaged radiator hoses
Installation Notes and Tips
- Verify hose dimensions and fitment compatibility with your specific vehicle model before installation
- Ensure all clamps and connections are securely tightened to prevent leaks
- Inspect surrounding cooling system components for wear or damage during replacement
- Allow the engine to cool completely before removing the old hose to avoid burns
- Use appropriate tools to avoid damaging the hose or radiator fittings during installation
Quality Assurance and Warranty Information
Gates manufactures the Flexible Coolant Hose (Heavy-Duty) line with strict quality control standards to meet OEM specifications. The use of EPDM and steel materials ensures resistance to heat and pressure, contributing to long service life. While specific warranty details for part number 26603 are not provided here, Gates products typically come with manufacturer-backed warranties covering defects in material and workmanship.
| Brand | Gates |
| Part Number | 26603 |
| Position | Flexible Coolant Hose (Heavy-Duty), Upper, Lower, Lower - Pipe To Radiator, and Lower - Water Pump To Pipe |
| Material | Epdm, steel |
| End 1 Inside Diameter | 1.75 |
| End 2 Inside Diameter | 1.75 |
| Centerline Length | 11 |
| Centerline Length | 279 |
| Temperature Low | 44 |
| Knob Color | 44 |
| 9839 | No |
| Molded | No |
This part fits 100 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1989 | Jaguar | XJ6 | 3.6L | L6 | GAS | Lower - Water Pump To Pipe | Flexible Coolant Hose (Heavy-Duty) | |
| 1973 | Jaguar | XJ6 | 4.2L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) | |
| 1972 | Jaguar | XJ6 | 4.2L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) | |
| 1967 | Lincoln | Continental | 7.6L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Ford | Thunderbird | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Ford | Thunderbird | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Lincoln | Continental | 7.6L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Mercury | Colony Park | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Mercury | Colony Park | 6.7L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Mercury | Colony Park | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Mercury | Marauder | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Mercury | Marauder | 6.7L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1966 | Mercury | Marauder | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1965 | Ford | Thunderbird | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1965 | Ford | Thunderbird | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1965 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1965 | Mercury | Colony Park | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1965 | Mercury | Marauder | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1964 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1964 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1964 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1964 | Ford | Thunderbird | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1964 | Ford | Thunderbird | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1964 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1964 | Mercury | Colony Park | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1964 | Mercury | Colony Park | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1964 | Mercury | Marauder | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1964 | Mercury | Marauder | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1963 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1963 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1963 | Ford | Thunderbird | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Ford | Thunderbird | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Mercury | Colony Park | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Mercury | Colony Park | 6.6L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Mercury | Colony Park | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Mercury | Marauder | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Mercury | Marauder | 6.6L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1963 | Mercury | Marauder | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1962 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1962 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1962 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1962 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1962 | Mercury | Colony Park | 5.8L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1962 | Mercury | Colony Park | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1961 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1961 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1961 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1961 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1961 | Mercury | Colony Park | 5.8L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1961 | Mercury | Colony Park | 6.4L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1960 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1960 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1960 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1960 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1960 | Mercury | Colony Park | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1959 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1959 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1959 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1959 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1959 | Mercury | Colony Park | 6.3L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1959 | Mercury | Colony Park | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Cadillac | Commercial Chassis | 6.0L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Cadillac | Commercial Chassis | 6.0L | V8 | GAS | Lower | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Cadillac | DeVille | 6.0L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Cadillac | DeVille | 6.0L | V8 | GAS | Lower | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Cadillac | Eldorado | 6.0L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Cadillac | Eldorado | 6.0L | V8 | GAS | Lower | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1958 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1958 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1958 | Lincoln | Continental | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Mercury | Colony Park | 6.3L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1958 | Mercury | Colony Park | 7.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1957 | Cadillac | Commercial Chassis | 6.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1957 | Cadillac | Commercial Chassis | 6.0L | V8 | GAS | Lower | Flexible Coolant Hose (Heavy-Duty) | |
| 1957 | Cadillac | DeVille | 6.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1957 | Cadillac | DeVille | 6.0L | V8 | GAS | Lower | Flexible Coolant Hose (Heavy-Duty) | |
| 1957 | Cadillac | Eldorado | 6.0L | V8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1957 | Cadillac | Eldorado | 6.0L | V8 | GAS | Lower | Flexible Coolant Hose (Heavy-Duty) | |
| 1957 | Ford | F-100 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1957 | Ford | F-250 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1957 | Ford | F-350 | Automatic | 3.6L | L6 | GAS | Lower - Pipe To Radiator | Flexible Coolant Hose (Heavy-Duty) |
| 1956 | Cadillac | Commercial Chassis | 6.0L | V8 | GAS | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Flexible Coolant Hose (Heavy-Duty) | |
| 1956 | Cadillac | Commercial Chassis | 6.0L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1956 | Cadillac | DeVille | 6.0L | V8 | GAS | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Flexible Coolant Hose (Heavy-Duty) | |
| 1956 | Cadillac | DeVille | 6.0L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1956 | Cadillac | Eldorado | 6.0L | V8 | GAS | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Flexible Coolant Hose (Heavy-Duty) | |
| 1956 | Cadillac | Eldorado | 6.0L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1955 | Cadillac | Commercial Chassis | 5.4L | V8 | GAS | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Flexible Coolant Hose (Heavy-Duty) | |
| 1955 | Cadillac | Commercial Chassis | 5.4L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1955 | Cadillac | DeVille | 5.4L | V8 | GAS | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Flexible Coolant Hose (Heavy-Duty) | |
| 1955 | Cadillac | DeVille | 5.4L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1955 | Cadillac | Eldorado | 5.4L | V8 | GAS | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Flexible Coolant Hose (Heavy-Duty) | |
| 1955 | Cadillac | Eldorado | 5.4L | V8 | GAS | Upper | Not compatible with vehicles equipped with AC.; Flexible Coolant Hose (Heavy-Duty) | |
| 1953 | Pontiac | Catalina | 4.4L | L8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1952 | Pontiac | Catalina | 4.4L | L8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1951 | Pontiac | Catalina | 4.4L | L8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) | |
| 1950 | Pontiac | Catalina | 4.4L | L8 | GAS | Upper | Flexible Coolant Hose (Heavy-Duty) |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.