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Gates 21742 Radiator Coolant Hose
Overview of Gates Molded Coolant Hose 21742
The Gates Molded Coolant Hose 21742 is engineered for reliable cooling system performance in various vehicles including Acura, Chevrolet, Ford, Honda, Lexus, and Toyota models. Designed with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility for efficient engine cooling.
- Constructed from high-quality EPDM material for heat and chemical resistance
- Molded design for precise fit and secure installation
- Centerline length of 122 mm (4.8 inches) for accurate replacement
- Inside diameter of 16 mm (0.62 inches) on both ends for consistent coolant flow
- Compatible with multiple makes and models including Acura MDX, Chevrolet Colorado, Ford Taurus, Honda Pilot, Lexus GS450h, and Toyota Tacoma
Details on Molded Coolant Hose Product Line
The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to exact specifications, reducing installation time and improving fitment accuracy. This product line emphasizes durability and resistance to coolant system chemicals, making it suitable for a wide range of passenger vehicles and light trucks. The 21742 part number is part of this line, offering a molded radiator coolant hose solution that meets OEM standards.
Technical Specifications and Features
The Gates 21742 radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant fluids. Both ends of the hose have an inside diameter of 16 mm (0.62 inches), ensuring compatibility with factory fittings. The hose has a centerline length of 122 mm (4.8 inches), designed to match the original equipment dimensions precisely. This hose does not contain any internal springs or quick connect fittings, simplifying the design and installation process.
Common Applications and Problem Solving
- Replacement for cracked or leaking radiator coolant hoses in Acura MDX and Honda Pilot vehicles
- Restores proper coolant flow in Chevrolet Colorado and GMC Canyon cooling systems
- Prevents overheating issues in Ford Taurus and Mercury Marquis models
- Addresses coolant leaks in Lexus GS450h and Toyota Tacoma engines
- Suitable for maintenance or repair of cooling systems in Buick Century and Oldsmobile Sable
Installation Notes and Tips
- Ensure the engine is cool before removing the old hose to avoid burns
- Verify the inside diameter and length match the original hose for proper fit
- Use appropriate clamps to secure the hose ends firmly
- Inspect surrounding 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 21742 is manufactured to meet or exceed OEM specifications, providing reliable performance in demanding automotive environments. The EPDM material offers resistance to heat and coolant chemicals, contributing to long service life. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support durability and fitment.
| Brand | Gates |
|---|---|
| Part Number | 21742 |
| Position | Molded Coolant Hose, Heater Outlet |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 4.8 |
| Centerline Length | 122 |
| Contains Spring | No |
| End 1 Inside Diameter | .62 |
| End 1 Inside Diameter | 16 |
| End 2 Inside Diameter | .62 |
| End 2 Inside Diameter | 16 |
| Material | EPDM |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 89 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2021 | Toyota | Tacoma | 3.5L | V6 | GAS | Heater Outlet | Molded Coolant Hose | |
| 2018 | Toyota | Tacoma | 3.5L | V6 | GAS | Heater Outlet | Molded Coolant Hose | |
| 2017 | Toyota | Tacoma | 3.5L | V6 | GAS | Heater Outlet | Molded Coolant Hose | |
| 2016 | Toyota | Tacoma | 3.5L | V6 | GAS | Heater Outlet | Molded Coolant Hose | |
| 2012 | Chevrolet | Colorado | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2012 | GMC | Canyon | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2011 | Chevrolet | Colorado | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2011 | GMC | Canyon | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2011 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Tee To Pipe | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2011 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Cooling Hose-4 | Molded Coolant Hose | |
| 2010 | Chevrolet | Colorado | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2010 | GMC | Canyon | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2010 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Tee To Pipe | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2010 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Cooling Hose-4 | Molded Coolant Hose | |
| 2009 | Chevrolet | Colorado | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2009 | GMC | Canyon | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2009 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Tee To Pipe | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2009 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Cooling Hose-4 | Molded Coolant Hose | |
| 2008 | Chevrolet | Colorado | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2008 | GMC | Canyon | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2008 | Honda | Pilot | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2008 | Isuzu | i-290 | 2.9L | L4 | GAS | Pipe-1 To Engine | Molded Coolant Hose | |
| 2008 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Tee To Pipe | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2008 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Cooling Hose-4 | Molded Coolant Hose | |
| 2007 | Honda | Pilot | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2007 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Tee To Pipe | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2007 | Lexus | GS450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Cooling Hose-4 | Molded Coolant Hose | |
| 2006 | Acura | MDX | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2006 | Honda | Pilot | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2005 | Acura | MDX | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2005 | Honda | Pilot | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2004 | Acura | MDX | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2004 | Honda | Pilot | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2003 | Acura | MDX | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2003 | Honda | Pilot | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2002 | Acura | MDX | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 2001 | Acura | MDX | 3.5L | V6 | GAS | Auxiliary Heater Inlet | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 1998 | Lexus | LS400 | 4.0L | V8 | GAS | Pipe-5 To Pipe-6 | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose | |
| 1995 | Ford | Taurus | GL | 3.0L | V6 | FLEX | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1995 | Ford | Taurus | GL | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1995 | Ford | Taurus | LX | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1995 | Ford | Taurus | SE | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1995 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1994 | Ford | Taurus | GL | 3.0L | V6 | FLEX | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1994 | Ford | Taurus | GL | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1994 | Ford | Taurus | LX | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1994 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1993 | Ford | Taurus | LX | 3.0L | V6 | FLEX | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1993 | Ford | Taurus | GL | 3.0L | V6 | FLEX | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1993 | Ford | Taurus | LX | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1993 | Ford | Taurus | GL | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1993 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1992 | Ford | Taurus | L | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1992 | Ford | Taurus | LX | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1992 | Ford | Taurus | GL | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1992 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1991 | Ford | Taurus | LX | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1991 | Ford | Taurus | L | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1991 | Ford | Taurus | GL | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1991 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1990 | Ford | Taurus | GL | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1990 | Ford | Taurus | LX | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1990 | Ford | Taurus | L | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1990 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1989 | Ford | Taurus | GL | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1989 | Ford | Taurus | L | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1989 | Ford | Taurus | LX | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose |
| 1989 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1988 | Ford | Taurus | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1988 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1987 | Ford | Taurus | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1987 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1986 | Buick | Century | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1986 | Chevrolet | Celebrity | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1986 | Ford | Cougar | 3.8L | V6 | GAS | Return | Molded Coolant Hose | |
| 1986 | Ford | Taurus | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1986 | Mercury | Cougar | 3.8L | V6 | GAS | Return | Molded Coolant Hose | |
| 1986 | Mercury | Marquis | 3.8L | V6 | GAS | Return | Molded Coolant Hose | |
| 1986 | Mercury | Sable | 3.0L | V6 | GAS | Pipe-2 To Tee-1 | Molded Coolant Hose | |
| 1986 | Oldsmobile | Cutlass Ciera | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1986 | Pontiac | 6000 | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Buick | Century | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Buick | Century | 2.8L | V6 | GAS | Pipe To Engine | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Chevrolet | Celebrity | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Chevrolet | Celebrity | 2.8L | V6 | GAS | Pipe To Engine | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Oldsmobile | Cutlass Ciera | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Oldsmobile | Cutlass Ciera | 2.8L | V6 | GAS | Pipe To Engine | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Pontiac | 6000 | 2.8L | V6 | GAS | Heater To Pipe | Cut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose | |
| 1985 | Pontiac | 6000 | 2.8L | V6 | GAS | Pipe To Engine | Cut-to-size heater hose suitable for air conditioning systems.; 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.