Compatible for Nissan 21430-AX300 21430-AX30A Radiator Expansion Water Tank Cap - Car Engine Cooling System Replacement

Colour:BlackPackage Contents:1 * Water Tank Cap==========High-concerned chemical : None

• Designed as a direct replacement for the 21430-AX300 and 21430-AX30A part numbers, fitting the car engine’s radiator expansion water tank to restore the sealing function of the cooling system’s fluid reservoir.
• Aligns with the dimensional specs of the radiator expansion tank’s filler neck, creating a tight seal to prevent coolant evaporation and leakage from the engine cooling system during operation.
• Integrates seamlessly with the car’s engine radiator expansion water tank, working with the cooling system to maintain proper internal pressure for stable coolant circulation in all driving conditions.
• Serves as a direct swap for worn or faulty tank caps on the engine’s radiator expansion system, re-establishing the cap’s basic sealing and pressure retention for the coolant reservoir.
• Matches the connection design of the car engine’s radiator expansion water tank, enabling simple hand installation without additional tools for quick cooling system part replacement.