Johnson Pump Ultima Switch 36303 Propellers use every 4th or 5th

use every 4th or 5th fill up or as often as needed to keep engines in optimal condition

Bolt Size: 5/16" x 1-3/4"

91000-fits masts with circumferences of 17 1/2" and larger with corresponding mast collars of up to 31" (445 to 787 mm)

3/4" - 1-1/8"

Johnson Pump Ultima Switch 36303 Propellers use every 4th or 5thNew digital technology uses the patented Mirus field effect detector cells producing micro electrical fields that detect disruptions caused by water and fluids. Detector cells are totally sealed, are never in contact with the water, will not corrode and are not affected by oil or foreign debris. ULTIMA activates at a 50 mm (2") fluid level and deactivates at a 20 mm (3 4") fluid level. An eight second delay prevents false starts. ULTIMA switch is