Fuel/Air Pressure Gauge Kit (CWGK)

Designed for precision diagnostics on marine engines. Ideal for simultaneous fuel and air pressure testing, this versatile tool is essential for servicing Mercury DFI Optimax, Verado Outboards, and DFI Sport Jet motors. The gauge kit connects directly to the fuel and air rails via their Schrader valve ports.

Compatible with all fuel-injected engines equipped with a ¼" Schrader valve test port. It's also perfectly suited for bleeding or priming fuel systems in engines without a primer bulb.

Proudly engineered and manufactured in Australia, this gauge kit is a reliable tool trusted by marine professionals.

Applications: All fuel-injected outboard and inboard engines with ¼" Schrader valve test ports, Mercury 75–300hp OptiMax DFI, Mercury Verado & 4 Stroke models, Mercury SportJet 200/240/250 EFI & DFI.

About The Brand

C Worthy Services has been a trusted name in the marine industry for over 20 years. With decades of hands-on mechanical experience, C Worthy Services creates tools that meet the real-world demands of marine technicians.