Important reliability upgrade! Alfa Romeo 4C uses coolant bleeding plugs made of recycled plastic, which are prone to heat and coolant deterioration, causing them to commonly fail, spilling coolant fluid in the engine compartment and under the front hood, leaving you stranded on the side of the road or on the track. OEM plastic plugs are also not available separately, so entire hose lines must be purchased and replaced, unfortunately with the same item, again made of recycled plastic with limited lifespan.
 
To address this reliability issue, GMS coolant bleeding kit features 2x M8 and 1x M6 aluminum T6-6061 CNC machined bleeding plugs with slotted M5 allen key and EPDM O-rings to replace OEM plastic plugs. Plugs are shot peened and anodized in GMS argento silver color.
 
Lifetime warranty!