The Professional Master Fuel Injection Kit, No. 6550PRO, from OTC, an SPX brand, is a full-coverage tool set developed to accommodate nearly every fuel injection system application from 1988 to present. The kit includes a comprehensive application guide of service information; the fully detailed user manual includes test connection illustrations and application charts. Components include 47 of the OTC fuel injection adapters, a 0 psi-100 psi analog pressure gauge with manifold, hose assemblies and a variety of seals, fuel line and clamps.