AutoMeter 4330 Ultra-Lite Air Locker Mechanical Pressure Gauge

GAUGE, AIR LOCKER PRESS, 2 1/16", 150PSI, MECHANICAL, ULTRA-LITE Autometers Precision Mechanical Air Locker Gauge Allows Drivers To Monitor Onboard Vehicle Air Used To Actuate Locking Differentials From Within The Cabin. Easily Troubleshoot Supply Settings And Detect Loss Of System Pressure That Could Prevent Proper Driveline Engagement And Provide Early Warning To Potential Driveline Damage.