Skip to content Skip to navigation menu

Tridon Radiator Cap - CK18125

SKU: 3270409 / SP75389 Part Number: CK18125
The Radiator Cap is designed to seal the top of the radiator or expansion tank to prevent coolant loss, pressurise the cooling system and raise the boiling point of the coolant. Radiator Caps are manufactured using either metal or plastic design depending on the vehicle manufacturers specifications.
$31.99

Buy now, Pay later options

4 payments of $8.00
Check Suitability
Click & Collect
Click & Collect is not available for your location
Please select a location from the suggested list
Delivery (Not Available)
Delivery Not Available
Please select a location from the suggested list

Tridon manufactures various automotive components, including coolant expansion or recovery tank caps. The radiator cap, also known as the coolant expansion or recovery tank cap, plays a critical role in the vehicle's cooling system.

Features:

  • FunctionalityThe primary function of a radiator cap is to seal the top of the radiator or coolant expansion tank. This sealing action is essential for several reasons:
  1. Preventing Coolant LossThe cap creates a sealed environment, preventing coolant from escaping the cooling system, especially when the engine is hot and coolant is pressurized.
  2. Pressurizing the Cooling SystemThe cap helps maintain a specific pressure in the cooling system. This pressure raises the boiling point of the coolant, allowing the engine to operate at higher temperatures without overheating.
  3. Coolant RecoveryIn systems with coolant recovery tanks, the cap allows excess coolant to flow into the tank when the engine is hot and then return to the radiator as it cools, maintaining a consistent coolant level.
  • Materials and DesignRadiator caps can be manufactured using either metal or plastic, depending on the specifications of the vehicle manufacturer. The choice of material may depend on factors such as the cooling system's design and the operating conditions the cap will endure.

Symptoms of a Faulty Radiator CapA malfunctioning radiator cap can lead to various issues, including:

  • Coolant LossA faulty cap may allow coolant to escape, which can lead to engine overheating and damage.

Increased Engine TemperatureIf the cap fails to maintain the correct pressure in the cooling system, the engine's temperature can rise, potentially causing engine damage.

Leaking CoolantVisible coolant leaks around the cap or from the overflow tube of the coolant recovery tank can indicate a problem with the cap.

  • CompatibilityTo ensure the proper functioning of the cooling system and prevent issues, it's essential to choose a Tridon coolant expansion/recovery tank cap that is compatible with your specific vehicle's cooling system. Always refer to the vehicle application list provided by Tridon or consult your vehicle's manual to select the correct part number.
  • Installation and ReplacementReplacing a radiator cap is a straightforward process and typically requires no special tools. However, it's essential to choose the right cap and ensure it's properly installed to maintain the cooling system's integrity and prevent coolant-related issues.

Tridon coolant expansion or recovery tank caps are crucial components in a vehicle's cooling system. They help maintain pressure, prevent coolant loss, and raise the boiling point of the coolant, all of which are essential for the engine's proper operation. To ensure compatibility and prevent cooling system problems, always select the correct part number based on your vehicle's specifications when replacing the radiator cap.

Series:CK
Pressure:18 (PSI), 125 (kPa)
System:Recovery
Cap Style:Plastic
Connection Type:Plastic Screw (Suits M58)

Tridon Radiator Cap - CK18125

$31.99