RV Tank Sensor Monitoring System (to fit Newmar 137129) hub-cover Plunger measures 3 inches on

Plunger measures 3 inches on the body of the lock

Made to fit Newmar part number 012766

with rheostat variable resistor

Light measures 4 7/8 inches long by 1 15/16 inches wide

This is the replacement for G139 / G-139 / G 139

RV Tank Sensor Monitoring System (to fit Newmar 137129) hub-cover Plunger measures 3 inches onTank monitoring system sensor. 12 VDC, 5 A. Monitor the accurate level of your holding tanks. Part number tsrw 120 KIB (old # tm5c 100). Tank Mounted sensor. The sensor has a sticky adhesive backing. Made to fit Newmar part number 137129. **Here are some installation tips rom the manufacturer: Remove old sensor and try to put replacement in the same spot. Use the 3M adhesive on the back of the part. You may also need additional adhesive to secure the