{"product_id":"sierra-18-5737-power-trim-relay-for-mercury-mariner-35-220-hp-outboards-1985-1993-replaces-mercury-87-19761","title":"Sierra Power Trim Relay 18-5737 for Mercury 40 HP 4-Cylinder Outboards, Replaces 87-19761","description":"\u003cp\u003eThe Sierra 18-5737 Power Trim Relay is a boat-mount electrical relay used in the power trim and tilt circuit of applicable Mercury outboard motors. It uses a quick connect terminal style and a normally open contact configuration, allowing it to switch the higher current draw of the trim\/tilt motor circuit when the operator engages trim or tilt at the control switch. This relay is designed for Mercury 40 HP 4-cylinder outboards equipped with relays, covering units from serial number 0C159200 and up. It is a direct interchange for Mercury cross-reference number 87-19761, so it can be installed as a like-for-like replacement without modification to the existing wiring harness or mounting hardware. The relay ships as a single unit and is intended as a drop-in replacement part for boat owners and marine technicians performing trim system diagnostics or relay replacement on affected Mercury outboards. As with all Sierra electrical components, the 18-5737 is built to meet or exceed the performance of the original equipment part it replaces, giving boaters a reliable option for restoring proper power trim operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5737\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Quick Connect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Type:\u003c\/strong\u003e Normally Open\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Boat Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282103392\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 relay\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury 40 HP 4-cylinder outboards with relays, serial number 0C159200 and up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury 87-19761\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-5737 used for?\u003c\/strong\u003e The Sierra 18-5737 is a power trim relay that switches the trim\/tilt motor circuit on applicable Mercury outboards when the operator activates the trim or tilt control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5737 relay fit my Mercury outboard?\u003c\/strong\u003e The 18-5737 fits Mercury 40 HP 4-cylinder outboards equipped with relays, from serial number 0C159200 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5737 a direct replacement for the Mercury OEM relay?\u003c\/strong\u003e Yes, part number 18-5737 is a direct interchange for Mercury cross-reference number 87-19761 and installs in place of it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of electrical connection does this relay use?\u003c\/strong\u003e The 18-5737 Power Trim Relay uses a quick connect terminal style, so it attaches to the existing trim circuit wiring without needing to splice or solder connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5737 relay normally open or normally closed?\u003c\/strong\u003e It is a normally open (N.O.) contact relay, meaning the circuit stays open until the trim switch is activated.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-5737 relay mounted?\u003c\/strong\u003e This is a boat-mount relay, meaning it is secured to a mounting surface on the boat or engine rather than being a plug-in or panel style unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5737 relay weigh?\u003c\/strong\u003e The Sierra 18-5737 Power Trim Relay weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many relays come in the package?\u003c\/strong\u003e The 18-5737 is sold as a single relay unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5737 an OEM or aftermarket part?\u003c\/strong\u003e The 18-5737 is a Sierra aftermarket relay built to meet or exceed the performance of the original Mercury 87-19761 relay it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5737 relay come with a warranty?\u003c\/strong\u003e The Sierra 18-5737 Power Trim Relay is covered under Sierra's standard limited warranty against defects.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988229927131,"sku":"SIE-18-5737","price":50.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5737_lg__31133.1558129347.500.750.jpg?v=1785188925","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5737-power-trim-relay-for-mercury-mariner-35-220-hp-outboards-1985-1993-replaces-mercury-87-19761","provider":"Good Vibes Marina","version":"1.0","type":"link"}