This Radiator Cap for Holden and Vauxhall is a screw-down type pressure cap designed to maintain proper cooling system pressure for optimal engine cooling and performance. The cap helps raise the boiling point of the coolant, prevents air entering the system, reduces overheating, and improves overall cooling efficiency. A worn-out or faulty radiator cap can lead to coolant loss, overheating, and reduced engine performance.

 

Compatibility:

for Holden

• for Commodore VE V6 and V8 All
• for Statesman and Caprice WM V6 and V8 All
• for Commodore VF V6 and V8
• for Statesman and Caprice WN V6 and V8

for Vauxhall (Opel)

• for Addam 2013 - On
• for Astra J 2010 - On
• for Ampera 2013 - On
• for Cascada 2013 - On
• for Corsa D 2007 - 2015
• for Insignia 2009 - On
• for Mokka 2013 - On
• for Viva 2015 - On (B10XE & B10XL Models)
• for Zafira C Tourer 2012 - On

 

 

Compatible reference OEM: 13502509, 92068250 (screw-down type only)

 

Important note: Please check your vehicle’s radiator cap type before purchasing - there are two types: screw-down and spring-type, this cap fits only for screw-down cap type

 

Installation tips:

• Ensure the radiator neck and sealing surface are clean before installation.
• Press down and twist until fully seated and sealed.
• Replace old or hardened O-rings if required.
• Fill the coolant to the correct level and check for leaks after installation.

 

How to replace Radiator Cap:

• Ensure the engine is cool - never remove the radiator cap on a hot engine.
• Slowly press and turn the old cap counter-clockwise to release any pressure.
• Remove the old cap.
• Inspect the radiator neck for damage or corrosion.
• Install the new cap by pushing down and turning clockwise until secure.
• Refill coolant if needed and start engine to check coolant levels and pressure performance.

 

Specification:

• Type: Screw-Down Radiator Pressure Cap
• Material: ABS
• Pressure Rating: Typical OEM cooling system pressure for radiators

 

What to look out for in a failing Radiator Cap

A worn or faulty radiator cap can cause serious cooling issues. Watch for these signs:

• Overheating engine

• Coolant loss or leakage around the cap area

• Bubbling or boiling coolant under the cap

• Low pressure in cooling system and poor heater performance

A radiator cap is a critical maintenance item - replacing it every few years helps maintain proper pressure and prevent overheating.

 

Package Included: Radiator Cap (Screw-Down Type, OEM 13502509)