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Gates 31546 Radiator Cap
Overview of Gates OE Type Radiator Cap 31546
The Gates OE Type Radiator Cap 31546 is designed to maintain optimal pressure in your vehicle's cooling system. Engineered as a threaded coolant bottle cap, it ensures a secure seal for closed coolant recovery systems, compatible with various Chevrolet, Land Rover, Pontiac, Saab, Saturn, and Suzuki models.
- Threaded coolant bottle cap design for secure fit
- Pressure rating of 20 psi (SAE range 18-22 psi)
- Cap depth of 0.73 inches (19 mm)
- Filler neck inside diameter approximately 2.28 inches (58 mm)
- Filler neck outside diameter approximately 2.4 inches (61 mm)
- Shell diameter of 3.29 inches
- Compatible with closed coolant recovery systems
- OE performance rating for reliable operation
Detailed Product Description
The Gates OE Type Radiator Cap 31546 is specifically engineered to meet original equipment specifications, providing consistent pressure control within the cooling system. Its threaded design ensures a tight seal on the coolant bottle, preventing leaks and maintaining system integrity. The cap’s pressure rating of 20 psi falls within the SAE recommended range of 18-22 psi, which helps regulate coolant flow and prevents overheating or coolant loss. With a cap depth of 0.73 inches and precise filler neck diameters, this radiator cap fits securely on compatible vehicles, including Chevrolet Aveo, Pontiac G3, Land Rover Discovery, Saab 9-3 and 9-5, Saturn Vue, Suzuki Swift+, and others.
About the OE Type Radiator Cap Product Line
The Gates OE Type Radiator Cap line is designed to provide direct replacement parts that meet or exceed original equipment standards. This product line focuses on delivering reliable pressure control and durability for various vehicle makes and models. The 31546 cap exemplifies this approach by offering precise fitment and consistent performance for closed coolant recovery systems.
Common Applications and Issues Addressed
- Maintains proper pressure in the cooling system to prevent overheating
- Prevents coolant leaks from the coolant bottle
- Ensures efficient coolant recovery in closed systems
- Helps avoid engine damage caused by pressure fluctuations
- Replaces worn or damaged radiator caps on compatible Chevrolet, Land Rover, Pontiac, Saab, Saturn, and Suzuki models
Installation Notes and Tips
- Ensure the filler neck is clean and free of debris before installation
- Thread the cap securely until it seats firmly to maintain a proper seal
- Check for any signs of wear or damage on the coolant bottle neck
- Verify compatibility with your vehicle’s make and model before installation
- Consult the vehicle’s service manual for specific torque or installation instructions if available
Quality Assurance and Warranty
Gates OE Type Radiator Caps are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 31546 part number is tested to provide consistent pressure regulation within the specified SAE range. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed quality assurance to support long-term use in compatible vehicles.
| Brand | Gates |
| Part Number | 31546 |
| Position | OE Type Radiator Cap |
| .73 | |
| 3.29 | |
| 19 | |
| Cap Depth | .73 |
| Coolant Recovery System | Closed System |
| Filler Neck Depth (in) | .73 |
| Filler Neck Depth (mm) | 19 |
| Filler Neck Inside Diameter | 2.28 |
| Filler Neck Inside Diameter | 58 |
| Filler Neck Outside Diameter | 2.4 |
| Filler Neck Outside Diameter | 61 |
| Friction Material Composition | Closed System |
| OE Comparison Rating | OE Performance |
| Pressure Rating | 20 |
| Pressure Rating (psi) | 20 |
| SAE Pressure Range (psi) | 18-22 |
| Shell Diameter (in) | 3.29 |
| Type | Threaded Coolant Bottle Cap |
| Type | Threaded Coolant Bottle Cap |
This part fits 105 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2017 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2014 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2013 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2012 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2011 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2011 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2010 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2010 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2010 | Pontiac | G3 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2010 | Pontiac | Matiz | 1.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2009 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2009 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2009 | Pontiac | G3 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2009 | Pontiac | Matiz | 1.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2008 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2008 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2008 | Pontiac | G3 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2008 | Pontiac | Matiz | 1.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2008 | Pontiac | Wave | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2007 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2007 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2007 | Pontiac | G3 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2007 | Pontiac | Matiz | 1.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2007 | Pontiac | Wave | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2007 | Pontiac | Wave5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2006 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2006 | Chevrolet | Aveo5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2006 | Pontiac | Matiz | 1.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2006 | Pontiac | Wave | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2006 | Pontiac | Wave5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2006 | Suzuki | Verona | 2.5L | L6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2005 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2005 | Pontiac | Matiz | 1.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2005 | Pontiac | Wave | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2005 | Pontiac | Wave5 | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2005 | Saab | 9-5 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2005 | Saturn | L300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2005 | Suzuki | Verona | 2.5L | L6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2004 | Chevrolet | Aveo | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2004 | Pontiac | Matiz | 1.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2004 | Saab | 9-5 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2004 | Saturn | L300 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2004 | Saturn | L300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2004 | Suzuki | Swift+ | 1.6L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2004 | Suzuki | Verona | 2.5L | L6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2003 | Saab | 9-3 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2003 | Saab | 9-5 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2003 | Saab | 9-5 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2003 | Saturn | L200 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2003 | Saturn | L300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2003 | Saturn | LW200 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2003 | Saturn | LW300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saab | 9-3 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saab | 9-3 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saab | 9-5 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saab | 9-5 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saturn | L100 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saturn | L200 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saturn | L300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saturn | LW200 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saturn | LW300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saturn | Vue | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2002 | Saturn | Vue | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saab | 9-3 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saab | 9-3 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saab | 9-5 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saab | 9-5 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saturn | L100 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saturn | L200 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saturn | L300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saturn | LW200 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2001 | Saturn | LW300 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saab | 9-3 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saab | 9-3 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saab | 9-5 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saab | 9-5 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saturn | LS | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saturn | LS1 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saturn | LS2 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saturn | LW1 | 2.2L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 2000 | Saturn | LW2 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1999 | Saab | 9-3 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1999 | Saab | 9-3 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1999 | Saab | 9-5 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1999 | Saab | 9-5 | 3.0L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1998 | Land Rover | Discovery | 4.0L | V8 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1998 | Saab | 900 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1998 | Saab | 900 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1997 | Land Rover | Discovery | 4.0L | V8 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1997 | Saab | 900 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1997 | Saab | 900 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1997 | Saab | 900 | 2.5L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1996 | Land Rover | Discovery | 4.0L | V8 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1996 | Saab | 900 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1996 | Saab | 900 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1996 | Saab | 900 | 2.5L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1995 | Land Rover | Range Rover | 4.2L | V8 | GAS | N/A | W/O Sensor; 20 psi Pressure Rating; OE Type Radiator Cap |
| 1995 | Saab | 900 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1995 | Saab | 900 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1995 | Saab | 900 | 2.5L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1994 | Saab | 900 | 2.0L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1994 | Saab | 900 | 2.1L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1994 | Saab | 900 | 2.3L | L4 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
| 1994 | Saab | 900 | 2.5L | V6 | GAS | N/A | 20 psi Pressure Rating; OE Type Radiator Cap |
* 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.