{"product_id":"taukealugs-oil-pressure-sender-sensor-for-mercruiser-volvo-penta-1-8-27-npt-0-80-psi","title":"Taukealugs Oil Pressure Sender Sensor for MerCruiser \u0026 Volvo Penta — 1\/8\"-27 NPT, 0–80 psi","description":"\u003cb\u003eHigh-accuracy Taukealugs oil pressure sender sensor replaces 815425T, 3857532, 18-5899 and compatible units for MerCruiser and Volvo Penta engines.\u003c\/b\u003e\n\nThis aftermarket oil pressure sending unit is engineered to provide a direct, drop-in alternative for multiple OEM part numbers used across MerCruiser, OMC, Crusader and Volvo Penta marine engines. It matches the common 1\/8\"-27 NPT thread and 10-32 stud terminal, reads up to 80 psi with a 0–300 ohm resistance curve, and is intended for gauge systems that need a reliable electrical pressure signal.\n\n\u003ch3\u003eWill this sensor fit my engine and replace my existing part number?\u003c\/h3\u003e\n\u003cp\u003eThe Taukealugs sender is built to replace a broad set of OEM references so it suits many MerCruiser 4-cylinder, V6 and V8 installations as well as OMC\/Volvo units. Verify thread, terminal and gauge requirements before ordering to ensure mechanical and electrical compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible OEM numbers: Mercury\/MerCruiser 815425T, 8M0068784\u003c\/li\u003e\n  \u003cli\u003eAlso replaces: OMC\/Volvo Penta 3857532, 3853800, 0982650, 18-5899\u003c\/li\u003e\n  \u003cli\u003eThread: 1\/8\"-27 NPT; Terminal: 10-32 stud; Range: 0–80 psi output\u003c\/li\u003e\n  \u003cli\u003eResistance characteristic: 0–300 ohms for common marine gauges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install this pressure sender on my boat?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically straightforward: shut off the engine, relieve system pressure, remove the old sender, apply sealant or thread tape to the new unit's 1\/8\"-27 NPT threads, then hand-tighten and finish with a wrench. Reconnect the gauge wire to the 10-32 stud terminal and test for proper reading and leaks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTools: wrench, thread sealant or PTFE tape, basic hand tools\u003c\/li\u003e\n  \u003cli\u003eSafety: disconnect battery and allow engine to cool before starting\u003c\/li\u003e\n  \u003cli\u003eTest: start engine briefly and verify gauge response and no leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat electrical and pressure specifications should I expect?\u003c\/h3\u003e\n\u003cp\u003eThis aftermarket sender follows the common marine sender curve so most factory and aftermarket gauges will read correctly. It supplies a resistance signal from about 0 to 300 ohms across a working pressure range up to 80 psi, using a 10-32 stud electrical terminal for the gauge connection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePressure range: up to 80 psi suitable for marine oil systems\u003c\/li\u003e\n  \u003cli\u003eResistance output: approximately 0–300 ohms across the range\u003c\/li\u003e\n  \u003cli\u003eTerminal: 10-32 stud compatible with standard ring or spade connectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow can I tell if my oil pressure sender is failing?\u003c\/h3\u003e\n\u003cp\u003eCommon signs include an erratic or stuck gauge, false low or high readings, or oil leaks at the sender body. Before replacing, check wiring, grounding, and gauge functionality to rule out electrical causes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSymptoms: fluctuating, pegged, or zero readings on the oil gauge\u003c\/li\u003e\n  \u003cli\u003eChecks: verify solid ground, clean terminal, and continuity with a multimeter\u003c\/li\u003e\n  \u003cli\u003eReplacement: choose compatible thread and electrical type to avoid mismatch\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for? This Taukealugs oil pressure sender is designed for boat owners, marine mechanics, and DIY enthusiasts who need a reliable, compatible replacement for worn or damaged oil pressure senders on MerCruiser, OMC, Crusader and Volvo Penta engines. It suits anyone looking for a budget-friendly aftermarket option that matches common thread, terminal and resistance specifications so the original oil gauge continues to function accurately without rewiring or gauge modification.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this sender work with MerCruiser 815425T?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it is designed to replace MerCruiser 815425T and several equivalent OEM numbers with matching thread and terminal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What thread and terminal does the sender use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It uses a 1\/8\"-27 NPT thread and a 10-32 stud terminal, with a 0–300 ohm resistance curve up to 80 psi.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Taukealugs","offers":[{"title":"Default Title","offer_id":48084433240222,"sku":"B07XLJQV9S","price":31.79,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/taukealugs-front-view-pressure-sender.jpg?v=1785855088","url":"https:\/\/northtrailauto.ca\/products\/taukealugs-oil-pressure-sender-sensor-for-mercruiser-volvo-penta-1-8-27-npt-0-80-psi","provider":"North Trail Auto","version":"1.0","type":"link"}