50cc Accelerator Pump Housing Cover, Diaphram, Spring & Screws Kit Specs: *Sold As A Kit (x1) 50cc Accelerator Pump Cover, (x1) 50cc Accelerator Pump Diaphram, (x1) 50cc Pump Spring & (x4) Mounting Screws *Diaphram is Made From High Quality Buna Rubber to Use with Gasoline or Gas Racing Fuels *Fits: 2300, 4150, 4160, 4500 Series Holley Carburetors and More !! *Also Works With Similar Style AED, Quick Fuel, Barry Grant, Street Avenger & Demon Style Carbs *These Parts Will Come In Bulk Style Bag Packaging *These are Genuine Holley Performance Parts *50cc Accelerator Pump Cover Part # 26-140 *50cc Accelerator Pump Diaphram Part # 135-7 *50cc Accelerator Pump Return Spring Part # 20-109