M14x1.5 to M20x1.5 Reducer Bushing

This is a single-piece metric threaded pipe fitting connector designed for direct thread adaptation between M14×1.5 and M20×1.5 ports. It features an M14×1.5 internal (female) thread on one end and an M20×1.5 external (male) thread on the other. Made from durable metal suitable for industrial use, it has compact dimensions ideal for tight installation spaces. Its primary function is to enable secure, leak-resistant threaded connections without modifying existing gauges, hoses or instrumentation. The bushing allows seamless integration of M20-threaded pressure gauges or test instruments into systems with only M14×1.5 threaded ports — commonly found in automotive engines, hydraulic manifolds, pneumatic test rigs and compressor housings. Installation requires standard hand or torque-controlled tightening, along with appropriate thread sealing methods (e.g., PTFE tape or anaerobic sealant) to ensure pressure integrity. Typical applications include adapting oil pressure or turbo boost gauges in vehicle engine bays, connecting diagnostic pressure testers to hydraulic equipment during maintenance, and retrofitting safety or monitoring gauges onto industrial compressors or control panels where thread mismatch would otherwise prevent installation.