Gates 31539 Radiator Cap

Overview of Gates OE Type Radiator Cap 31539

The Gates OE Type Radiator Cap 31539 is designed to maintain optimal pressure in the cooling system of select Ford, Mazda, and Mercury vehicles. This threaded coolant bottle cap ensures a secure seal for closed coolant recovery systems, supporting efficient engine temperature regulation.

• Threaded coolant bottle cap design for secure fitment
• Pressure rating of 17 psi (within SAE range 15-18 psi)
• Cap depth of 1.5 inches for proper sealing
• Filler neck inside diameter approximately 1.53 inches (39 mm)
• Filler neck outside diameter approximately 1.97 inches (50 mm)
• Shell diameter of 2.48 inches for compatibility with specified filler necks
• Compatible with closed coolant recovery systems
• OE performance rating ensuring reliable operation

Detailed Product Description

The Gates OE Type Radiator Cap 31539 is engineered to meet original equipment specifications, providing consistent pressure control within the cooling system. Its threaded design allows for a tight seal on the coolant bottle, preventing coolant loss and maintaining system integrity. The cap’s pressure rating of 17 psi falls within the SAE recommended range of 15-18 psi, ensuring proper system pressurization to avoid overheating or coolant boiling. With precise dimensions including a 1.5-inch cap depth and a filler neck inside diameter of 1.53 inches, this radiator cap fits securely on compatible filler necks with an outside diameter of 1.97 inches. The shell diameter of 2.48 inches supports a stable fit and easy handling during installation or removal.

This radiator cap is part of the Gates OE Type Radiator Cap product line, which focuses on delivering original equipment quality and fitment. The OE Type Radiator Cap line is designed to match the specifications of factory-installed caps, providing dependable performance and compatibility with a range of vehicles. This ensures that the cooling system maintains proper pressure and fluid containment, critical for engine longevity and efficiency.

Compatible Vehicles and Applications

This radiator cap is compatible with various Ford, Mazda, and Mercury models, including:

• Ford Contour, Escape
• Mazda Tribute, Mariner
• Mercury Cougar, Mystique

It is specifically designed for vehicles equipped with closed coolant recovery systems requiring a threaded coolant bottle cap with the specified dimensions and pressure rating.

Common Issues Addressed by This Radiator Cap

• Prevents coolant leaks caused by worn or damaged caps
• Maintains proper system pressure to avoid engine overheating
• Ensures coolant recovery system operates efficiently
• Reduces risk of coolant boiling and vapor lock
• Helps maintain engine temperature stability under varying conditions

Installation Notes and Tips

• Ensure the filler neck dimensions match the cap specifications before installation
• Clean the filler neck area to remove debris or old gasket material
• Thread the cap securely but avoid over-tightening to prevent damage
• Check for leaks after installation by running the engine to operating temperature
• Replace the radiator cap as part of routine cooling system maintenance

Quality Assurance and Warranty

The Gates OE Type Radiator Cap 31539 is manufactured to meet OE performance standards, ensuring reliable pressure control and durability. Gates products typically come with a limited warranty against defects in materials and workmanship. For specific warranty details, refer to the product documentation or contact the manufacturer.