*GENUINE* VW / AUDI COOLANT EXPANSION HEADER TANK RESERVOIR BOTTLE RAD CAP 

WITH BUILT IN PRESSURE VALVE: 3B0 121 321

*Not to be confused with the pattern parts available, these caps are genuine VW / Audi that will fit and work in your vehicle properly

THE INNER THREAD DIAMETER OF THIS CAP IS 55mm

WE ARE AN INDEPENDENT SPECIALIST, ALL OUR USED PARTS ARE TESTED, CLEANED AND FULLY GUARANTEED

PLEASE DO NOT HESITATE TO CONTACT US VIA EBAY IF YOU REQUIRE ANY FURTHER INFORMATION