$2at TraxxasBuyTraxxasEND CAP CARBURETOR BODY$2Traxxas$2BuySaveShareTraxxas profileThe creators who use it, or GearCred, may earn a commission when you buy through these links, at no extra cost to you.From TraxxasEnd cap, carburetor body/ 6.2x1.2mm O-ring/ (1-each) (TRX 2.5, 2.5R)