Gauge kit includes 1/8” nylon line, 1/8” NPT compression fittings, 1/4” NPT adapter, mounting hardware, and detailed instructions for installation 1/8 NPT 0-10BAR Mechanical Oil Pressure Sensor For Oil Pressure Racing Car Auto Gauge 4521 Oil Pressure Gauge With Fittings Autometer Ultra-Nite 66.7mm 0-100 PSI Mechanical Oil Pressure Gauge Lite Fuel Our 2-Gauge Panel features AutoMeter 2-5/8 gauges for oil pressure and water temperature, ensuring accurate engine monitoring · Designed for dirt track racing... Auto Meter’s race proven mechanical instruments provide trusted accuracy and durability in the harshest environments while being simple to install Free shipping on AutoMeter Ultra-Nite Oil Pressure Gauge 4521. We are an authorized dealer, & offer a 1-year price match guarantee Rugged mechanical movements, light weight design and glow in the dark green dials make this off road only series perfect for short track races and vehicles without batteries., ., Luminescent dials glow green at night for dimly lit tracks when no battery is available to light conventional instruments