{"product_id":"marine-oil-pressure-sender-80-psi-1-8-27-npt-with-10-32-stud-terminal-replaces-mercruiser-815425t-volvo-penta-3857532-omc-982650-sierra-18-5899","title":"Sierra Oil Pressure Sender 18-5899, Replaces Mercury Marine 34623\/90806 and Crusader 700425, 80 PSI","description":"\u003cp\u003eThe Sierra 18-5899 is an 80 PSI oil pressure sender built for marine engines, providing the electrical signal that drives an oil pressure gauge on the helm. It uses a 1\/8 inch 27 NPT thread for installation into the engine block or oil gallery and a 10-32 stud terminal for connecting the gauge wiring, making it a direct, no-modification swap for the senders it cross-references. Construction is aluminum or nickel, giving the sender the corrosion resistance needed to hold up in a marine engine compartment over repeated heat cycling. It is a universal fit sender, designed to work with 80 PSI electric oil pressure gauges rather than being tied to one specific gauge brand.\u003c\/p\u003e\u003cp\u003eThis sender directly cross-references Mercury Marine 34623 and Mercury Marine 90806, as well as Crusader 700425, so it is a straightforward replacement wherever one of those part numbers is called for. Because the thread size, pressure range, and terminal type match the original equipment, no rewiring or fitting changes are needed at installation.\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 18-5899\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Oil Pressure Sender\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/8 inch, 27 NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Range:\u003c\/strong\u003e 80 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e 10-32 stud\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum or Nickel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 7 x 6 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.29 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 1 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Through Hole Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Teleflex Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999563903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCrusader engines using the 700425 oil pressure sender\u003c\/li\u003e\n\u003cli\u003eMercury Marine engines using the 34623 or 90806 oil pressure sender\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCrusader 700425\u003c\/li\u003e\n\u003cli\u003eMercury Marine 34623\u003c\/li\u003e\n\u003cli\u003eMercury Marine 90806\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure range does the Sierra 18-5899 oil pressure sender cover?\u003c\/strong\u003e The Sierra 18-5899 is rated for an 80 PSI range, matching it to standard marine engine oil pressure gauges built for that range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does this oil pressure sender use?\u003c\/strong\u003e It uses a 1\/8 inch, 27 NPT thread, the standard thread for the engine block or oil gallery port it installs into.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5899 replace a Mercury Marine oil pressure sender?\u003c\/strong\u003e Yes, part number 18-5899 directly cross-references Mercury Marine 34623 and Mercury Marine 90806.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5899 a replacement for a Crusader sender?\u003c\/strong\u003e It is, this sender cross-references Crusader part number 700425.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat terminal type is used to wire the gauge to this sender?\u003c\/strong\u003e The 18-5899 has a 10-32 stud terminal for connecting the gauge wiring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-5899 sender made of?\u003c\/strong\u003e Construction is aluminum or nickel, chosen for corrosion resistance in the marine engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5899 oil pressure sender weigh?\u003c\/strong\u003e It weighs 0.29 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5899?\u003c\/strong\u003e The sender measures 7 x 6 x 2 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this sender work with any 80 PSI oil pressure gauge?\u003c\/strong\u003e Yes, the 18-5899 is a universal fit sender intended for use with 80 PSI electric oil pressure gauges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a mounting gasket or fitting included with the 18-5899?\u003c\/strong\u003e The product is the oil pressure sender itself; no separate gasket or fitting is specified as included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the current rating of this sender?\u003c\/strong\u003e The Sierra 18-5899 has a current rating of 1 Amps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-5899 mounted?\u003c\/strong\u003e It uses a through hole mount, threading directly into the 1\/8 inch NPT port on the engine.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988342976731,"sku":"SIE-18-5899","price":35.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5899__08925.1737846844.500.750.jpg?v=1785188406","url":"https:\/\/www.goodvibesmarina.com\/products\/marine-oil-pressure-sender-80-psi-1-8-27-npt-with-10-32-stud-terminal-replaces-mercruiser-815425t-volvo-penta-3857532-omc-982650-sierra-18-5899","provider":"Good Vibes Marina","version":"1.0","type":"link"}