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Gates 21531 Radiator Coolant Hose
Overview of Gates Molded Coolant Hose 21531
The Gates Molded Coolant Hose 21531 is designed for reliable cooling system performance in select Audi, Chevrolet, Pontiac, Suzuki, and Volkswagen vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent coolant flow and heat resistance for models like the Audi A3, Chevrolet Aveo, and Volkswagen Golf.
- Constructed from high-quality EPDM for heat and chemical resistance
- Molded design for precise fit and secure installation
- Centerline length of 10.7 inches (272 mm) for accurate routing
- End 1 and End 2 inside diameters both 1.25 inches (32 mm)
- Compatible with multiple makes and models including Audi A3, Chevrolet Aveo5, and Volkswagen Jetta
- Does not contain a spring or quick connect fittings
Detailed Product Description
The Gates Molded Coolant Hose 21531 is a radiator coolant hose crafted from EPDM (ethylene propylene diene monomer) rubber, known for its excellent resistance to heat, ozone, and coolant chemicals. This molded hose features a centerline length of 10.7 inches (272 mm) and uniform inside diameters of 1.25 inches (32 mm) on both ends, ensuring a secure and leak-free connection within the cooling system. The molded construction provides a precise shape that matches original equipment specifications, reducing the risk of kinks or improper fitment. This hose does not include springs or quick connect fittings, making it suitable for applications requiring a straightforward hose replacement.
About the Molded Coolant Hose Product Line
The Gates Molded Coolant Hose line focuses on delivering hoses that are pre-formed to exact OEM shapes and dimensions. This approach simplifies installation and improves reliability by eliminating the need for manual bending or shaping. The Molded Coolant Hose 21531 exemplifies this with its precise centerline length and consistent diameter, designed to fit specific vehicle cooling systems without modification.
Common Applications and Issues Addressed
- Replacement of worn or cracked radiator coolant hoses in Audi A3 and Volkswagen Passat
- Resolving coolant leaks caused by hose deterioration in Chevrolet Aveo and Pontiac G3
- Preventing overheating issues due to compromised coolant flow in Suzuki Swift+ and Wave models
- Maintaining proper coolant circulation in Volkswagen Jetta and Golf vehicles
- Eliminating hose collapse or deformation under engine heat stress
Installation Notes and Tips
- Ensure the engine is cool before removing the old hose to avoid burns
- Verify the hose orientation matches the original routing to prevent kinks
- Use appropriate clamps to secure both ends of the hose firmly
- Inspect adjacent components for wear or damage during installation
- Check for leaks after installation by running the engine and monitoring coolant flow
Quality Assurance and Warranty
Gates Molded Coolant Hose 21531 is manufactured to meet or exceed OEM standards for durability and performance. The EPDM material and molded design contribute to long service life under typical operating conditions. While specific warranty details are not provided here, Gates products generally come with manufacturer-backed quality assurance to support reliable operation in compatible Audi, Chevrolet, Pontiac, Suzuki, and Volkswagen vehicles.
| Brand | Gates |
|---|---|
| Part Number | 21531 |
| Position | Molded Coolant Hose, Upper |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 10.7 |
| Centerline Length | 272 |
| Contains Spring | No |
| End 1 Inside Diameter | 1.25 |
| End 1 Inside Diameter | 32 |
| End 2 Inside Diameter | 1.25 |
| End 2 Inside Diameter | 32 |
| Material | EPDM |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 75 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2018 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2017 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2016 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2015 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2014 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2013 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2012 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2011 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2010 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2009 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Molded Coolant Hose | |
| 2008 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2008 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2008 | Pontiac | G3 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2008 | Pontiac | Wave | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2008 | Suzuki | Swift+ | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2007 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2007 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2007 | Pontiac | G3 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2007 | Pontiac | Wave | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2007 | Pontiac | Wave5 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2007 | Suzuki | Swift+ | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2006 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2006 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2006 | Pontiac | Wave | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2006 | Pontiac | Wave5 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2006 | Suzuki | Swift+ | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2005 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2005 | Pontiac | Wave | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2005 | Pontiac | Wave5 | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2005 | Suzuki | Swift+ | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2004 | Chevrolet | Aveo | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2004 | Suzuki | Swift+ | 1.6L | L4 | GAS | Upper | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2004 | Volkswagen | Golf | Automatic | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose |
| 2003 | Volkswagen | Golf | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 2002 | Volkswagen | Golf | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 2001 | Volkswagen | Golf | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 2001 | Volkswagen | Jetta | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 2000 | Audi | A3 | 1.8L | L4 | GAS | Upper - Tee To Thermostat | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 2000 | Volkswagen | Golf | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 2000 | Volkswagen | Jetta | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 1999 | Audi | A3 | 1.8L | L4 | GAS | Upper - Tee To Thermostat | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1999 | Volkswagen | Golf | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 1999 | Volkswagen | Jetta | 1.9L | L4 | DIESEL | Upper - Tee-1 To Thermostat | W/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose | |
| 1998 | Audi | A3 | 1.8L | L4 | GAS | Upper - Tee To Thermostat | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1993 | Volkswagen | Passat | 1.8L | L4 | GAS | Lower - Pipe To Radiator | Molded Coolant Hose | |
| 1992 | Volkswagen | Golf | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1992 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1992 | Volkswagen | Jetta | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1992 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Not compatible with vehicles equipped with AC.; Molded Coolant Hose | |
| 1992 | Volkswagen | Passat | 1.8L | L4 | GAS | Lower - Pipe To Radiator | Molded Coolant Hose | |
| 1991 | Volkswagen | Golf | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1991 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1991 | Volkswagen | Jetta | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1991 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1991 | Volkswagen | Passat | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1990 | Volkswagen | Golf | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1990 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1990 | Volkswagen | Jetta | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1990 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1989 | Volkswagen | Golf | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1989 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1989 | Volkswagen | Jetta | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1989 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1988 | Volkswagen | Golf | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1988 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1988 | Volkswagen | Jetta | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1988 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1987 | Volkswagen | Golf | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1987 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1987 | Volkswagen | Jetta | 1.6L | L4 | DIESEL | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1987 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1986 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1986 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1985 | Volkswagen | Golf | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose | |
| 1985 | Volkswagen | Jetta | 1.8L | L4 | GAS | Lower | Without air conditioning; with standard cooling.; Molded Coolant Hose |
* 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.