{"product_id":"sierra-ts26631-marine-water-temperature-sender","title":"Sierra TS26631 Marine Water Temperature Sender","description":"\u003cp class=\"nvn-hero\"\u003eThe Sierra TS26631 is the marine water temperature sender that tells your helm gauge how hot the engine's running. It threads into a 1\/2-14 NPT port, carries a 10-32 stud terminal for the signal wire, and reads to 240 degrees. Sierra builds it to match or beat the original sender, so your gauge reads true again. Just confirm it fits your gauge first.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Sierra TS26631 is a marine water temperature sender, the small threaded sensor that tells your dash gauge how hot your engine is running. It reads engine coolant or raw-water temperature and feeds that signal back to a matched temperature gauge at the helm. When your temp gauge quits, pegs cold, or reads wildly wrong, a tired sender is usually the reason, and this is the part that fixes it.\u003c\/p\u003e\n\u003cp\u003eHere's how a sender like this works. Inside is a temperature-sensitive resistor. As the engine warms up, the sender's resistance changes, and your gauge reads that change as a needle position. That's the whole trick. There's no power switch, no calibration knob, just a threaded brass body that screws into a port on your engine and a single stud terminal for the signal wire. Simple, and when it's matched right, dead reliable.\u003c\/p\u003e\n\u003cp\u003eThe TS26631 uses a 1\/2-14 thread, so it screws into a 1\/2 inch NPT temperature port. You'll find that port on the cylinder head, the thermostat housing, or an exhaust manifold, depending on your engine. The terminal is a 10-32 stud, which takes a standard ring terminal on the signal wire. The rated range is 240 degrees, which covers the normal operating and warning range for a marine gasoline or diesel engine.\u003c\/p\u003e\n\u003cp\u003eNow the part that matters most, and it's the one people skip. A sender has to match your gauge. Temperature senders are built to specific resistance ranges, and a gauge is calibrated to read one particular range. Put the wrong sender behind a gauge and the needle will read high, low, or just plain wrong even though nothing's actually broken. So before you buy, check what your gauge expects and confirm the TS26631 matches. If you're replacing a Sierra sender or a factory sender with these same specs, you're in good shape. If you're not sure, match the thread, the range, and the terminal to the old unit before you pull it.\u003c\/p\u003e\n\u003cp\u003eInstalling one is a fifteen-minute job. Let the engine cool, back out the old sender, and clean the threads in the port. Wrap the new sender's threads with a thin turn of sealant rated for the job, thread it in by hand, then snug it with a wrench. Don't gorilla it. Brass threads strip if you lean on them. Move the ring terminal and its wire over to the new stud, tighten the nut, and you're done. Start the engine, let it come up to temp, and watch the gauge settle where it should.\u003c\/p\u003e\n\u003cp\u003eThis is a Sierra part, which means it's built to replace an original-equipment sender and stand up to the marine environment. Salt, spray, heat cycling, and vibration kill cheap sensors fast. Sierra engineers their parts to meet or exceed the OEM piece they replace, and they supply parts to engine builders and boat builders every day, so the fit and the materials are what you'd expect from a factory unit. That's the difference between a sender you install once and one you're back under the engine hatch chasing again next season.\u003c\/p\u003e\n\u003cp\u003eOne more note on wiring. The 10-32 stud terminal handles a single signal wire, so this sender is set up for one gauge at a single helm. If you run gauges at two stations, that's a different sender configuration, so match the terminal setup to your boat before ordering. And keep the connection clean. A corroded ring terminal or a loose nut on the stud will make a perfectly good sender read like a bad one, so a dab of dielectric grease on the terminal goes a long way out on the water.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Anyone with a temp gauge acting up, anyone repowering or rigging a new gauge cluster, and anyone doing a tune-up who'd rather replace an aging sender before it strands them. It's a single sender, sold on its own, not a gauge kit. If your whole gauge is dead, the sender may not be your problem, so test before you swap. But when the sender's the culprit, and it often is, the TS26631 is a straightforward, honest fix.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e1\/2-14 threaded brass body screws into a standard 1\/2 inch NPT engine temperature port\u003c\/li\u003e\n  \u003cli\u003e240 degree temperature range covers normal operating and warning temps for marine gas and diesel engines\u003c\/li\u003e\n  \u003cli\u003e10-32 stud terminal accepts a standard ring terminal for the gauge signal wire\u003c\/li\u003e\n  \u003cli\u003eSingle-station design feeds one matched temperature gauge at the helm\u003c\/li\u003e\n  \u003cli\u003eSierra engineering meets or exceeds the original-equipment sender it replaces\u003c\/li\u003e\n  \u003cli\u003eBuilt to survive salt, spray, heat cycling, and vibration in the marine environment\u003c\/li\u003e\n  \u003cli\u003eDirect fix for a temp gauge that reads high, low, or erratic when the old sender fails\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Sierra Marine reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does the Sierra TS26631 do?\u003c\/summary\u003e\n    \u003cp\u003eIt's a marine water temperature sender. It reads your engine's coolant or raw-water temperature and sends that signal to a matched gauge at the helm so you can see how hot the engine is running.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat thread size is it?\u003c\/summary\u003e\n    \u003cp\u003eThe TS26631 uses a 1\/2-14 thread, so it screws into a 1\/2 inch NPT temperature port on the engine.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat temperature range does it cover?\u003c\/summary\u003e\n    \u003cp\u003eIt's rated to 240 degrees, which covers the normal operating and warning range for marine gasoline and diesel engines.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat kind of terminal does it use?\u003c\/summary\u003e\n    \u003cp\u003eA 10-32 stud terminal. You connect the gauge signal wire with a standard ring terminal and a nut.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it work with any temperature gauge?\u003c\/summary\u003e\n    \u003cp\u003eNo. Senders are built to a specific resistance range and your gauge is calibrated to match one range. Confirm the TS26631's specs match what your gauge expects before you buy, or match the thread, range, and terminal to the sender you're replacing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhere does it install on the engine?\u003c\/summary\u003e\n    \u003cp\u003eIn the threaded temperature port, usually on the cylinder head, thermostat housing, or exhaust manifold, depending on your engine.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need thread sealant?\u003c\/summary\u003e\n    \u003cp\u003eYes. Wrap the threads with a thin turn of a sealant rated for the job before you thread it in, and snug it by hand plus a bit with a wrench. Don't overtighten brass.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it read water temperature or oil temperature?\u003c\/summary\u003e\n    \u003cp\u003eThis is a water temperature sender. It's for engine coolant or raw-water temperature, not oil.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it built for the marine environment?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's a Sierra part engineered to meet or exceed the original-equipment sender and to stand up to salt, heat cycling, and vibration.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eSierra TS26631 Marine Water Temperature Sender\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSierra Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eTS26631\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e023121266315\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eWater Temperature Sender\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003ctd\u003e1\/2-14\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTemperature Range\u003c\/th\u003e\n\u003ctd\u003e240 Degree\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTerminal Type\u003c\/th\u003e\n\u003ctd\u003e10 To 32 Stud\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMeasures\u003c\/th\u003e\n\u003ctd\u003eEngine water \/ coolant temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eThreaded, 1\/2 inch NPT port\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStation Configuration\u003c\/th\u003e\n\u003ctd\u003eSingle station (one gauge)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eSold individually\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does the Sierra TS26631 do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a marine water temperature sender. It reads your engine's coolant or raw-water temperature and sends that signal to a matched gauge at the helm so you can see how hot the engine is running.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What thread size is it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The TS26631 uses a 1\/2-14 thread, so it screws into a 1\/2 inch NPT temperature port on the engine.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What temperature range does it cover?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's rated to 240 degrees, which covers the normal operating and warning range for marine gasoline and diesel engines.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What kind of terminal does it use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A 10-32 stud terminal. You connect the gauge signal wire with a standard ring terminal and a nut.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it work with any temperature gauge?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. Senders are built to a specific resistance range and your gauge is calibrated to match one range. Confirm the TS26631's specs match what your gauge expects before you buy, or match the thread, range, and terminal to the sender you're replacing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Where does it install on the engine?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"In the threaded temperature port, usually on the cylinder head, thermostat housing, or exhaust manifold, depending on your engine.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need thread sealant?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Wrap the threads with a thin turn of a sealant rated for the job before you thread it in, and snug it by hand plus a bit with a wrench. Don't overtighten brass.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it read water temperature or oil temperature?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"This is a water temperature sender. It's for engine coolant or raw-water temperature, not oil.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it built for the marine environment?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's a Sierra part engineered to meet or exceed the original-equipment sender and to stand up to salt, heat cycling, and vibration.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sierra Marine","offers":[{"title":"Default Title","offer_id":45080696488029,"sku":"2010422","price":19.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_45857904-59fb-4452-833a-851260c0791d.jpg?v=1789993308","url":"https:\/\/nvnmarine.com\/products\/sierra-ts26631-marine-water-temperature-sender","provider":"NVN Marine","version":"1.0","type":"link"}