Sierra OP22900 6 PSI Low Oil Pressure Switch

Sierra OP22900 is a 6 PSI low oil pressure switch used for engine alarm and electric fuel pump shutoff circuits in compatible marine engines. Marine inboard sources list a 1/8-27 thread, 10-32 stud terminal, and use on some Indmar engines through 2005. Confirm the switch function and thread before replacement.

Sierra OP22900 6 PSI Low Oil Pressure Switch is listed in the Laken Water Sports marine parts catalog for online ordering and Phoenix-area pickup. Confirm fitment, availability, and pickup timing with the parts team before ordering when compatibility is critical.

Fitment notes: Oil pressure switch; verify alarm/fuel pump circuit and thread size.