{"product_id":"oil-pressure-switch-84-817219-mercruiser-sterndrive","title":"Oil Pressure Switch 84-817219 – MerCruiser Sterndrive","description":"\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: linear-gradient(135deg, #f5f8fb 0%, #ffffff 100%); border: 2px solid #0b3a63; border-left: 5px solid #0b3a63; border-radius: 12px; box-shadow: 0 4px 12px rgba(11, 58, 99, 0.08);\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; padding: 0; font-size: 24px; line-height: 1.3; font-weight: 700; color: #132238;\"\u003eHow to Match This Part\u003c\/h2\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eThis aftermarket \u003cstrong style=\"font-weight: 700; color: #132238;\"\u003eoil pressure alarm switch\u003c\/strong\u003e replaces MerCruiser \/ Mercury \u003cstrong style=\"font-weight: 700; color: #132238;\"\u003e84-817219\u003c\/strong\u003e. Mercury later superseded this number through F700602, F708940, and 87-817169 to the current \u003cstrong style=\"font-weight: 700; color: #132238;\"\u003e87-805605A1\u003c\/strong\u003e switch assembly. It signals the low oil pressure audio warning system on MerCruiser sterndrive and inboard engines.\u003c\/p\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003e\n    \u003cstrong style=\"font-weight: 700; color: #132238;\"\u003eMatch this part in this order:\u003c\/strong\u003e\u003cbr\u003e\n    1. \u003cstrong\u003eOEM number\u003c\/strong\u003e on the removed switch or in your parts catalog — \u003cstrong\u003e84-817219\u003c\/strong\u003e, F700602, F708940, 87-817169, or superseding \u003cstrong\u003e87-805605A1\u003c\/strong\u003e\u003cbr\u003e\n    2. \u003cstrong\u003eEngine family\u003c\/strong\u003e — MerCruiser sterndrive or inboard calling for this oil-pressure alarm switch\u003cbr\u003e\n    3. \u003cstrong\u003eThread and terminal\u003c\/strong\u003e — 1\/8-27 male pipe thread with a single 10-32 stud terminal\n  \u003c\/p\u003e\n  \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eThis listing is keyed to legacy number \u003cstrong style=\"font-weight: 700; color: #132238;\"\u003e84-817219\u003c\/strong\u003e. Confirm the OEM number and that you need an alarm switch (not a variable-resistance oil-pressure gauge sender) before ordering. See the product images to compare physical form once media are uploaded.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px; box-shadow: 0 2px 8px rgba(19, 34, 56, 0.04);\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003ePart Number Cross-Reference\u003c\/h2\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eUse this table to confirm equivalent MerCruiser numbers in the 84-817219 supersession chain and a common aftermarket cross.\u003c\/p\u003e\n  \u003cdiv style=\"margin: 16px 0 0; overflow-x: auto; border: 1px solid #e0e6ed; border-radius: 8px;\"\u003e\n    \u003ctable style=\"width: 100%; min-width: 600px; border-collapse: collapse; font-size: 15px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background: #132238; color: #ffffff;\"\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003eType\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003eBrand\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003ePart Number\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003ePrimary OEM Reference\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMercury \/ MerCruiser\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e84-817219\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eLegacy oil pressure alarm switch number\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003eOEM supersession\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMercury \/ MerCruiser\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eF700602\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eNext number after 84-817219\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003eOEM supersession\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMercury \/ MerCruiser\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eF708940\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eLater catalogue number in the same chain\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003eOEM supersession\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMercury \/ MerCruiser\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e87-817169\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eOil pressure alarm switch; superseded by 87-805605A1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003eOEM supersession\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMercury \/ MerCruiser \/ Quicksilver\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e87-805605A1\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eCurrent superseding switch assembly number (also 805605A1)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003e\u003cstrong\u003eAftermarket\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eSierra\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eOP22900\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eAftermarket cross for superseding Mercury 87-805605A1\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp style=\"margin: 14px 0 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003ePart numbers are listed for identification only. This is an aftermarket part manufactured by JLM Marine and is not sold as a genuine Mercury or MerCruiser component.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eCompatible Engine Models\u003c\/h2\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eConfirm your engine model and serial number before ordering. On MerCruiser sterndrive and inboard engines, the identification plate and serial number are on the engine itself — typically on the cylinder block or flame-arrestor cover — not on an outboard transom bracket. Cross-check with the \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" target=\"_blank\" rel=\"nofollow noopener\" style=\"color: #0b3a63; text-decoration: underline; font-weight: 600;\"\u003eMercury Parts Diagrams\u003c\/a\u003e for your MerCruiser engine group.\u003c\/p\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eThis switch serves the low oil pressure \u003cstrong style=\"font-weight: 700; color: #132238;\"\u003eaudio warning\u003c\/strong\u003e circuit. It is not the variable-resistance sender that drives an oil pressure gauge.\u003c\/p\u003e\n  \u003cdiv style=\"margin: 16px 0 0; overflow-x: auto; border: 1px solid #e0e6ed; border-radius: 8px;\"\u003e\n    \u003ctable style=\"width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background: #132238; color: #ffffff;\"\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px;\"\u003eBrand\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px;\"\u003eApplication\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px;\"\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eSterndrive engines calling for 84-817219 or its Mercury supersessions\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eAudio warning system signal\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eInboard engines calling for 84-817219 or its Mercury supersessions\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eAudio warning system signal\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp style=\"margin: 14px 0 0; padding: 12px 14px; background: #f5f8fb; border-left: 3px solid #d32f2f; font-size: 14px; line-height: 1.5; color: #5c6b7a; border-radius: 4px;\"\u003e\u003cstrong style=\"color: #d32f2f;\"\u003eImportant:\u003c\/strong\u003e Verify the OEM number on your removed switch or parts catalog. Engines that use a different oil-pressure switch or a gauge sender only should not use this listing.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdiv style=\"margin: 0; overflow-x: auto; border: 1px solid #e0e6ed; border-radius: 8px;\"\u003e\n    \u003ctable style=\"width: 100%; min-width: 520px; border-collapse: collapse; font-size: 15px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background: #132238; color: #ffffff;\"\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px;\"\u003eSpecification\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px;\"\u003eValue\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003ePart type\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eLow oil pressure switch (audio warning)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003ePrimary OEM number\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e84-817219\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eCurrent Mercury supersession\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e87-805605A1 (805605A1)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eThread size\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e1\/8-27 male pipe thread\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eTerminal type\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e10-32 threaded stud, single terminal\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eFunction\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eSignals the engine audio warning system on low oil pressure\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eInstallation Guide\u003c\/h2\u003e\n  \u003cdiv style=\"position: relative; margin: 0 0 16px; padding: 0 0 0 42px; min-height: 28px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eAllow the engine to cool fully. Disconnect the battery negative cable before working on the warning circuit.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; margin: 0 0 16px; padding: 0 0 0 42px; min-height: 28px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eLabel and remove the warning-system wire from the old switch stud. Unscrew the old switch and compare its thread and terminal to this 1\/8-27 \/ 10-32 unit. Do not force a mismatched thread.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; margin: 0 0 16px; padding: 0 0 0 42px; min-height: 28px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eThread the new switch in by hand, then tighten snugly with the correct wrench on the body hex — do not over-torque or crush the insulator.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; margin: 0 0 16px; padding: 0 0 0 42px; min-height: 28px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e4\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eReconnect the warning wire under the 10-32 stud nut. Reconnect the battery, start the engine, and confirm the alarm clears as oil pressure builds and that there are no oil leaks at the port.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cp style=\"margin: 12px 0 0; padding: 12px 14px; background: #f5f8fb; border-left: 3px solid #0b3a63; font-size: 14px; line-height: 1.5; color: #5c6b7a; border-radius: 4px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e If you are unsure about warning-system wiring or oil-gallery location, have a marine technician complete the install.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #f5f8fb; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails style=\"margin: 0 0 12px; padding: 0; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 8px; overflow: hidden;\"\u003e\n    \u003csummary style=\"display: block; padding: 14px 16px; font-size: 16px; font-weight: 700; color: #132238; cursor: pointer; list-style: none;\"\u003eIs this an OEM or aftermarket part?\u003cspan style=\"float: right; font-size: 20px; color: #0b3a63;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n    \u003cp style=\"margin: 0 16px 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eThis is an aftermarket JLM Marine replacement matched to MerCruiser 84-817219 and its Mercury supersession path. It is not a genuine Mercury or MerCruiser part.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails style=\"margin: 0 0 12px; padding: 0; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 8px; overflow: hidden;\"\u003e\n    \u003csummary style=\"display: block; padding: 14px 16px; font-size: 16px; font-weight: 700; color: #132238; cursor: pointer; list-style: none;\"\u003eHow does 84-817219 relate to 87-805605A1?\u003cspan style=\"float: right; font-size: 20px; color: #0b3a63;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n    \u003cp style=\"margin: 0 16px 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eMercury superseded 84-817219 through later catalogue numbers to the current 87-805605A1 switch assembly. This listing is identified by the legacy 84-817219 reference; confirm your catalog number before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails style=\"margin: 0 0 12px; padding: 0; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 8px; overflow: hidden;\"\u003e\n    \u003csummary style=\"display: block; padding: 14px 16px; font-size: 16px; font-weight: 700; color: #132238; cursor: pointer; list-style: none;\"\u003eWill this work with my oil pressure gauge?\u003cspan style=\"float: right; font-size: 20px; color: #0b3a63;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n    \u003cp style=\"margin: 0 16px 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eNo. This is an on\/off alarm switch for the audio warning circuit, not a variable-resistance gauge sender. Engines that use both a gauge sender and an alarm switch need the correct switch for the alarm circuit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails style=\"margin: 0; padding: 0; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 8px; overflow: hidden;\"\u003e\n    \u003csummary style=\"display: block; padding: 14px 16px; font-size: 16px; font-weight: 700; color: #132238; cursor: pointer; list-style: none;\"\u003eMy old switch has a different thread — will this fit?\u003cspan style=\"float: right; font-size: 20px; color: #0b3a63;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n    \u003cp style=\"margin: 0 16px 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eOnly if the port is 1\/8-27 male pipe thread and the wiring uses a single 10-32 stud. Compare the removed switch before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n  \u003cul style=\"margin: 0; padding: 0 0 0 24px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003e\n    \u003cli style=\"margin: 0 0 8px;\"\u003e\n\u003cstrong style=\"font-weight: 700;\"\u003ePrecision Fit:\u003c\/strong\u003e Thread and terminal layout matched to MerCruiser 84-817219 oil pressure alarm switch applications and its verified supersession path.\u003c\/li\u003e\n    \u003cli style=\"margin: 0 0 8px;\"\u003e\n\u003cstrong style=\"font-weight: 700;\"\u003eQuality Control:\u003c\/strong\u003e Each batch is inspected for dimensional consistency and workmanship.\u003c\/li\u003e\n    \u003cli style=\"margin: 0;\"\u003e\n\u003cstrong style=\"font-weight: 700;\"\u003eDirect from Manufacturer:\u003c\/strong\u003e Aftermarket marine parts engineered for reliable warning-system service.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":51966113644857,"sku":"21SR014","price":43.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Uffa9bb4ef44440df88806114f48d8b63r.webp?v=1771923853","url":"https:\/\/jlmmarine.com\/ru\/products\/oil-pressure-switch-84-817219-mercruiser-sterndrive","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}