Homeβ€Ί Belts and Cooling > Hoses and Pipesβ€Ί Gates 21531 Radiator Coolant Hose
Part #: 21531

Gates 21531 Radiator Coolant Hose

Molded Coolant Hose, Upper
75 vehicles fit this part
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OE Direct Replacement β€” Bolt-on fit, no modifications needed
Molded Coolant Hose, Upper
Fitment: Chevrolet, Pontiac, Suzuki, Volkswagen, Daewoo, and Audi, Aveo, Aveo5, G3, Wave, Swift+, Wave5, Golf, Lanos, Jetta, A3, and Passat
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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.

BrandGates
Part Number21531
PositionMolded Coolant Hose, Upper
0
Yes
Branch Quantity0
Centerline Length10.7
Centerline Length272
Contains SpringNo
End 1 Inside Diameter1.25
End 1 Inside Diameter32
End 2 Inside Diameter1.25
End 2 Inside Diameter32
MaterialEPDM
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 75 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2018ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2017ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2016ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2015ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2014ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2013ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2012ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2011ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2010ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2009ChevroletAveo1.6LL4GASUpperMolded Coolant Hose
2008ChevroletAveo1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2008ChevroletAveo51.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2008PontiacG31.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2008PontiacWave1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2008SuzukiSwift+1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2007ChevroletAveo1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2007ChevroletAveo51.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2007PontiacG31.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2007PontiacWave1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2007PontiacWave51.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2007SuzukiSwift+1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2006ChevroletAveo1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2006ChevroletAveo51.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2006PontiacWave1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2006PontiacWave51.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2006SuzukiSwift+1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2005ChevroletAveo1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2005PontiacWave1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2005PontiacWave51.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2005SuzukiSwift+1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2004ChevroletAveo1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2004SuzukiSwift+1.6LL4GASUpperCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2004VolkswagenGolfAutomatic1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
2003VolkswagenGolf1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
2002VolkswagenGolf1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
2001VolkswagenGolf1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
2001VolkswagenJetta1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
2000AudiA31.8LL4GASUpper - Tee To ThermostatCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
2000VolkswagenGolf1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
2000VolkswagenJetta1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
1999AudiA31.8LL4GASUpper - Tee To ThermostatCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1999VolkswagenGolf1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
1999VolkswagenJetta1.9LL4DIESELUpper - Tee-1 To ThermostatW/O Quick Connect Fitting; Cut to fit; Molded Coolant Hose
1998AudiA31.8LL4GASUpper - Tee To ThermostatCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1993VolkswagenPassat1.8LL4GASLower - Pipe To RadiatorMolded Coolant Hose
1992VolkswagenGolf1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1992VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1992VolkswagenJetta1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1992VolkswagenJetta1.8LL4GASLowerNot compatible with vehicles equipped with AC.; Molded Coolant Hose
1992VolkswagenPassat1.8LL4GASLower - Pipe To RadiatorMolded Coolant Hose
1991VolkswagenGolf1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1991VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1991VolkswagenJetta1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1991VolkswagenJetta1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1991VolkswagenPassat1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1990VolkswagenGolf1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1990VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1990VolkswagenJetta1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1990VolkswagenJetta1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1989VolkswagenGolf1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1989VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1989VolkswagenJetta1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1989VolkswagenJetta1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1988VolkswagenGolf1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1988VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1988VolkswagenJetta1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1988VolkswagenJetta1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1987VolkswagenGolf1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1987VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1987VolkswagenJetta1.6LL4DIESELLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1987VolkswagenJetta1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1986VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1986VolkswagenJetta1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1985VolkswagenGolf1.8LL4GASLowerWithout air conditioning; with standard cooling.; Molded Coolant Hose
1985VolkswagenJetta1.8LL4GASLowerWithout 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:

14-2127-6142-60641613852C1191121051F20189S2153154-0239954-0476554-0613155961646629188246961822699653653296807000KM-2199L34-5571MH-4531R38106

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.