This is the CC Racing billet aluminum black anodized carb pump cover for Walbro style carbs. There a lot of these style units on the market that are a cheap import just for show, but we designed these to actually help performance. This not only replaces the steel cover that always seems to rust, corrode or have the ends bent from normal maintenance, but it has a deeper well to allow the diaphragm a less restricted area to help suit high RPM. Comes with the correct longer Stainless screws with built in washer, anodized black to prohibit corrosion and your choice of plain black or with CC Racing Logo.