WAir flow meter
WAirbox
WAmal (carburettor)
WAutogas
WBendix-Stromberg pressure carburetor
WCarburetor
WClaudel-Hobson
WCommon rail
WDell'Orto
WElectronic Diesel Control
WFloat chamber
WFuel control unit
WFuel pump
WHolley Performance Products
WKeihin Corporation
WMAFless Tuning
WMAP sensor
WMikuni (company)
WSolex Carburetor
WUnit injector
WUnit pump
WWeber carburetor