SIERRA 6 PSI 3-Wire Oil Pressure Safety Switch, 1/4-18 NPT – OP72533

Description

SIERRA 6 PSI 3-Wire Oil Pressure Safety Switch, 1/4-18 NPT – OP72533

A three-wire marine oil-pressure safety switch used in electric-fuel-pump control circuits so pump operation is tied to engine oil pressure.

• Approximately 6 PSI actuation point
• Three-wire connections for starter, fuel pump and ignition circuits
• 1/4-18 NPT pressure connection
• 1/4-inch spade electrical terminals
• Shuts the electric fuel pump off when engine oil pressure is lost

This is a safety/control switch rather than a gauge sender. Confirm the original wiring logic and thread size before replacement.

Specifications

• Part number: OP72533
• Type: Oil-pressure fuel-pump safety switch
• Actuation pressure: Approx. 6 PSI
• Thread: 1/4-18 NPT
• Terminals: 1/4 in. spade
• Wiring: 3-wire: starter / pump / ignition
• Sender code: E