Boat mechanics and marine engine enthusiasts, this Sierra International oil pressure sender is a quality replacement part for various marine applications. It's rated for 100 PSI and features NPT threads with a 10-32 stud terminal connection. Sierra is a trusted name in marine parts, and this sender is built to handle the tough conditions of marine environments. The construction looks solid with proper sealing to prevent oil leaks and corrosion resistance for saltwater use. While the description is brief, Sierra parts generally meet or exceed OEM specifications for reliability. Installation requires basic mechanical skills - just make sure your engine is cool and you've relieved any pressure before swapping senders. It's always smart to use thread sealant compatible with oil on the NPT threads to prevent leaks. This is one of those components that might not be exciting, but when your oil pressure gauge stops working properly, having a reliable sender like this can save you from bigger engine problems down the line. For the price compared to OEM marine parts, Sierra delivers the quality and reliability you need for peace of mind on the water.