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Gates 21591 Radiator Coolant Hose
Reliable Radiator Coolant Hose for Acura, Honda, Toyota, and More
The Gates Molded Coolant Hose 21591 is engineered to provide dependable coolant flow for a variety of vehicles including Acura, Honda, Toyota, and several other makes. Designed with durable EPDM material and precise molded construction, this radiator coolant hose ensures a secure fit and long-lasting performance.
Key Features of Gates Molded Coolant Hose 21591
- Constructed from high-quality EPDM material for heat and chemical resistance
- Molded design for exact fit and reliable sealing
- Centerline length of 14.3 inches (363 mm) for proper routing
- End 1 inside diameter: 1.19 inches (30 mm)
- End 2 inside diameter: 1.3 inches (33 mm)
- Does not contain a spring, ensuring flexibility without added rigidity
- Compatible with multiple vehicle makes and models
Detailed Description of the Molded Coolant Hose 21591
The Gates Molded Coolant Hose 21591 is part of the Molded Coolant Hose product line, which focuses on precision-molded hoses designed to meet exact OEM specifications. This hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals, making it suitable for radiator applications. The molded construction eliminates the need for clamps or additional fittings, providing a secure and leak-resistant connection. With a centerline length of 14.3 inches (363 mm) and carefully measured inside diameters of 1.19 inches (30 mm) and 1.3 inches (33 mm) at each end, this hose fits specific coolant system layouts in vehicles such as the Acura RL, Honda Legend, Toyota Celica, and others.
Compatible Vehicles and Common Applications
- Acura RL and TL models requiring molded radiator coolant hoses
- Honda Legend and Passport coolant system replacements
- Toyota Celica and Pickup radiator hose applications
- Chevrolet Lumina APV and Oldsmobile 740 series coolant hose needs
- Isuzu Trooper and Suzuki Vitara radiator hose replacements
Installation Notes and Tips
- Ensure the engine is cool before removing the old hose to prevent burns
- Check hose routing and orientation to match the molded shape
- Inspect hose connections for corrosion or damage before installation
- Use proper clamps if required by the vehicle’s cooling system design
- Verify no kinks or twists in the hose after installation to maintain coolant flow
Quality Assurance and Warranty Information
Gates Molded Coolant Hose 21591 is manufactured to meet stringent quality standards, ensuring durability and reliable performance in demanding automotive environments. The EPDM material and molded design contribute to resistance against heat, pressure, and coolant chemicals. While specific warranty details are not provided, Gates products typically adhere to industry standards for automotive replacement parts.
| Brand | Gates |
| Part Number | 21591 |
| Position | Molded Coolant Hose, Upper, Lower - Pipe-2 To Radiator, Lower, and Lower - Engine To Pipe |
| Material | Epdm |
| End 1 Inside Diameter | 1.19 |
| End 1 Inside Diameter | 30 |
| End 2 Inside Diameter | 1.3 |
| End 2 Inside Diameter | 33 |
| Contains Spring | No |
| Centerline Length | 14.3 |
| Centerline Length | 363 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 74 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2011 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2011 | Saab | 9-3X | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2010 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2010 | Saab | 9-3X | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2009 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2008 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2007 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2006 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2005 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2004 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2004 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2003 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2003 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Connector required; Cut to fit; Molded Coolant Hose |
| 2003 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Eng. VIN S; Connector required; Cut to fit; Molded Coolant Hose |
| 2003 | Saab | 9-3 | 2.0L | L4 | GAS | Upper | Eng. VIN Y; Connector required; Cut to fit; Molded Coolant Hose |
| 2002 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2002 | Chevrolet | Tracker | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2002 | Suzuki | Vitara | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2001 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2001 | Chevrolet | Tracker | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2001 | Suzuki | Vitara | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2000 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2000 | Chevrolet | Tracker | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 2000 | Suzuki | Vitara | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1999 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1999 | Chevrolet | Tracker | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1999 | Suzuki | Vitara | 1.6L | L4 | GAS | Lower - Pipe-2 To Radiator | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1998 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1998 | Acura | TL | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1997 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1997 | Acura | TL | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1996 | Acura | RL | 3.5L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1996 | Acura | TL | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1996 | Chevrolet | Lumina APV | 3.4L | V6 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1996 | Honda | Passport | 2.6L | L4 | GAS | Lower | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1996 | Oldsmobile | Silhouette | 3.4L | V6 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1996 | Pontiac | Trans Sport | 3.4L | V6 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1995 | Acura | Legend | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1995 | Honda | Passport | 2.6L | L4 | GAS | Lower | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1994 | Acura | Legend | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1994 | Honda | Passport | 2.6L | L4 | GAS | Lower | Molded Coolant Hose |
| 1993 | Acura | Legend | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1993 | Toyota | Celica | 2.0L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1992 | Acura | Legend | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1992 | Toyota | Celica | 2.0L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Acura | Legend | 3.2L | V6 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Toyota | Celica | 2.0L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Volvo | 740 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Volvo | 780 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Volvo | 940 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1990 | Toyota | Celica | 2.0L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1990 | Volvo | 740 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1990 | Volvo | 760 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1990 | Volvo | 780 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Isuzu | Amigo | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Isuzu | Pickup | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Volvo | 740 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Volvo | 760 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Volvo | 780 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1988 | Isuzu | Pickup | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1988 | Volvo | 740 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1988 | Volvo | 760 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1987 | Isuzu | Pickup | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1987 | Isuzu | Trooper | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1987 | Volvo | 740 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1987 | Volvo | 760 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1986 | Isuzu | Pickup | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1986 | Isuzu | Trooper | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1986 | Volvo | 740 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1986 | Volvo | 760 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1985 | Volvo | 740 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1985 | Volvo | 745 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1985 | Volvo | 760 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1984 | Volvo | 760 | 2.3L | L4 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; 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.