Part #: 31546

Gates 31546 Radiator Cap

OE Type Radiator Cap
⚙️ 105 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Type Radiator Cap
🚗Fitment: Chevrolet, Pontiac, Suzuki, Saab, Saturn, and Land Rover, Aveo, Aveo5, Matiz, G3, Wave, Wave5, Epica, Verona, 9-5, L300, Swift+, 9-3, L200, LW200, LW300, L100, Vue, LS, LS1, LS2, LW1, LW2, Discovery, and 900
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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.

BrandGates
Part Number31546
PositionOE Type Radiator Cap
.73
3.29
19
Cap Depth.73
Coolant Recovery SystemClosed System
Filler Neck Depth (in).73
Filler Neck Depth (mm)19
Filler Neck Inside Diameter2.28
Filler Neck Inside Diameter58
Filler Neck Outside Diameter2.4
Filler Neck Outside Diameter61
Friction Material CompositionClosed System
OE Comparison RatingOE Performance
Pressure Rating20
Pressure Rating (psi)20
SAE Pressure Range (psi)18-22
Shell Diameter (in)3.29
TypeThreaded Coolant Bottle Cap
TypeThreaded Coolant Bottle Cap

This part fits 105 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2018ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2017ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2014ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2013ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2012ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2011ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2011ChevroletAveo51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2010ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2010ChevroletAveo51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2010PontiacG31.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2010PontiacMatiz1.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2009ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2009ChevroletAveo51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2009PontiacG31.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2009PontiacMatiz1.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2008ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2008ChevroletAveo51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2008PontiacG31.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2008PontiacMatiz1.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2008PontiacWave1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2007ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2007ChevroletAveo51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2007PontiacG31.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2007PontiacMatiz1.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2007PontiacWave1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2007PontiacWave51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2006ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2006ChevroletAveo51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2006PontiacMatiz1.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2006PontiacWave1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2006PontiacWave51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2006SuzukiVerona2.5LL6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2005ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2005PontiacMatiz1.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2005PontiacWave1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2005PontiacWave51.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2005Saab9-52.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2005SaturnL3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2005SuzukiVerona2.5LL6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2004ChevroletAveo1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2004PontiacMatiz1.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2004Saab9-52.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2004SaturnL3002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2004SaturnL3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2004SuzukiSwift+1.6LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2004SuzukiVerona2.5LL6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2003Saab9-32.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2003Saab9-52.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2003Saab9-53.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2003SaturnL2002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2003SaturnL3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2003SaturnLW2002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2003SaturnLW3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002Saab9-32.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002Saab9-32.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002Saab9-52.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002Saab9-53.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002SaturnL1002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002SaturnL2002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002SaturnL3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002SaturnLW2002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002SaturnLW3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002SaturnVue2.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2002SaturnVue3.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001Saab9-32.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001Saab9-32.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001Saab9-52.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001Saab9-53.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001SaturnL1002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001SaturnL2002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001SaturnL3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001SaturnLW2002.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2001SaturnLW3003.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000Saab9-32.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000Saab9-32.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000Saab9-52.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000Saab9-53.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000SaturnLS2.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000SaturnLS12.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000SaturnLS23.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000SaturnLW12.2LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
2000SaturnLW23.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1999Saab9-32.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1999Saab9-32.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1999Saab9-52.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1999Saab9-53.0LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1998Land RoverDiscovery4.0LV8GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1998Saab9002.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1998Saab9002.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1997Land RoverDiscovery4.0LV8GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1997Saab9002.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1997Saab9002.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1997Saab9002.5LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1996Land RoverDiscovery4.0LV8GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1996Saab9002.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1996Saab9002.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1996Saab9002.5LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1995Land RoverRange Rover4.2LV8GASN/AW/O Sensor; 20 psi Pressure Rating; OE Type Radiator Cap
1995Saab9002.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1995Saab9002.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1995Saab9002.5LV6GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1994Saab9002.0LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1994Saab9002.1LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1994Saab9002.3LL4GASN/A20 psi Pressure Rating; OE Type Radiator Cap
1994Saab9002.5LV6GASN/A20 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:

10259112591301666130465931546330764395513460777026703-165670559050000690500007934203039453959796536649NTC7161R66113T-55

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