AUTO METER 4521 Ultra-Nite Oil Pressure Gauge - 0-100 PSI, 2-1/16" Diameter, Black Dial with White Numbers - Perfect for Car, Truck & Motorcycle Performance Monitoring

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

For racing use only - Not intended for street applications

No electrical system required for gauge operation - compatible with every street or race vehicle

Auto Meter’s race proven mechanical instruments provide trusted accuracy and durability in the harshest environments while being simple to install

Gauge kit includes 1/8” nylon line, 1/8” NPT compression fittings, 1/4” NPT adapter, mounting hardware, and detailed instructions for installation