{"product_id":"240-33-ohms-10-5in-marine-fuel-sending-unit-durable-doughnut-float","title":"240-33 ohms 10.5in Marine Fuel Sending Unit - Durable Doughnut Float","description":"\u003cp\u003eIn this review of the 240-33 ohms 10.5in Marine Fuel Sending Unit the bottom line is simple: this is a practical, durable replacement sender for boat or vehicle tanks where a reliable fuel or water level reading is needed. The reviewer found it best suited to owners who want a direct swap for a swingarm or wema style sender and value long-term durability from a doughnut float and reed switch design. Installation is straightforward and the unit restores gauge function quickly, which is the main reason most people will buy it.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoughnut float design:\u003c\/strong\u003e uses a reed switch design with no delicate moving arms, which increases durability and reduces the chance of failure in marine environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect replacement fit:\u003c\/strong\u003e SAE 5 hole mounting pattern and a substantial flange mean it bolts in as a drop-in replacement for many swingarm and wema senders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmerican standard output:\u003c\/strong\u003e provides 240 ohms at empty and 33 ohms at full so it works with standard gauges without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust materials:\u003c\/strong\u003e body in 316 stainless steel and NBR float deliver corrosion resistance appropriate for fuel and saltwater exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e comes with gasket, mounting screws and illustrated instructions to make the typical install take about 15 minutes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis sender is aimed at boat owners, automotive or truck owners, and custom installers who need a durable replacement for a failed swingarm or wema sender and who use gauges expecting the 240-33 ohm standard. It is especially useful for marine applications because of the 316 stainless body and IP65 protection level.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for someone whose tank depth requires a nonstandard probe length without modification; the installer must choose a sender length about 1in shorter than a plastic tank depth or 0.5in shorter for metal tanks to avoid the float hitting the bottom. Also, buyers who require metric-only documentation or custom electrical outputs should confirm details with the seller first.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid long-term reliability from the doughnut float and reed switch design.\u003c\/li\u003e\n\u003cli\u003eDirect-fit SAE 5 hole pattern and included hardware make installation fast and straightforward.\u003c\/li\u003e\n\u003cli\u003e316 stainless steel construction and IP65 rating resist corrosion in marine environments.\u003c\/li\u003e\n\u003cli\u003eWorks with standard gauges thanks to the 240-33 ohm output curve.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers report mixed alignment of mounting screw holes, so minor fitting adjustments may be needed.\u003c\/li\u003e\n\u003cli\u003eGauge readability can vary with certain dashboards and may require verification after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput signal\u003c\/td\u003e\n\u003ctd\u003e240 ohms (empty) - 33 ohms (full)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe length\u003c\/td\u003e\n\u003ctd\u003e10.5in (267mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting pattern\u003c\/td\u003e\n\u003ctd\u003eSAE 5 hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody material\u003c\/td\u003e\n\u003ctd\u003eSUS 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloat material\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rank\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded in box\u003c\/td\u003e\n\u003ctd\u003eGasket, mounting screws, illustrated instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 240-33 ohms 10.5in Marine Fuel Sending Unit is a sensible replacement for anyone needing a more durable alternative to a swingarm sender. It delivers reliable readings, a direct-fit flange, and corrosion-resistant construction at a reasonable value, making it a good choice for marine and vehicle owners who want a quick, low-risk repair to restore gauge function.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this unit work with my standard fuel gauge?\u003c\/strong\u003e\u003cbr\u003eThe sender uses the American standard 240-33 ohm output so it will work with gauges designed for that resistance curve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow hard is installation?\u003c\/strong\u003e\u003cbr\u003eInstallation is straightforward; the unit ships with gasket, screws and illustrated instructions and typically takes about 15 minutes for a direct replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the sender be used in saltwater?\u003c\/strong\u003e\u003cbr\u003eYes, the body is 316 stainless steel and the assembly has IP65 protection, which makes it suitable for marine environments when installed correctly.\u003c\/p\u003e","brand":"AODITECK","offers":[{"title":"Default Title","offer_id":48621922287835,"sku":"B093D1BTZF","price":45.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61VD0MTydhS._AC_SL1500_27d94f31-f5fa-430d-9799-87d256524488.jpg?v=1778480690","url":"https:\/\/gearmusthave.com\/products\/240-33-ohms-10-5in-marine-fuel-sending-unit-durable-doughnut-float","provider":"GearMustHave","version":"1.0","type":"link"}