{"product_id":"100tech-fuel-sending-unit-240-33-ohms-11in-durable-reed-switch","title":"100TECH Fuel Sending Unit 240-33 ohms 11in - Durable Reed Switch","description":"\u003cp\u003eIn this review the 100TECH Fuel Sending Unit is evaluated for boat and vehicle owners who need a reliable replacement sender without fuss. The bottom line: it is best for users who want a rugged, low-maintenance sensor that reads with American standard 240-33 ohms output and resists common failure modes. The reviewer found the stainless steel construction and OKI reed switch make this unit notably durable, and the simple installation and direct-replacement fit are the most convincing reasons to consider it for marine and automotive tanks.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReed switch construction:\u003c\/strong\u003e Uses an OKI reed switch imported from Japan which delivers greater durability and reliability than thick-film swim arm type senders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard output:\u003c\/strong\u003e Provides American standard 240-33 ohm output so it matches most fuel gauges calibrated to that range without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel build:\u003c\/strong\u003e Heavy duty 316 stainless steel and rugged construction resist corrosion in marine and automotive environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy installation:\u003c\/strong\u003e Ships with gasket, mounting screws and illustrated instructions so wiring and mounting are straightforward for DIYers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE 5-hole mounting:\u003c\/strong\u003e Fits common 5-hole mounting patterns for direct replacement in many boats, trucks and RVs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact float:\u003c\/strong\u003e A 1.38in (35mm) diameter float designed to work in tanks where a 1.50in (38mm) hole is available if drilling is required.\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, RV and truck owners, and mechanics who need a robust replacement for an arm type fuel sender and prefer a unit with no moving electrical parts to adjust. It is particularly useful in marine environments where corrosion resistance and durable joints are important.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for systems that require nonstandard resistance curves or proprietary electronics, and customers needing custom lengths outside the 4in-32in range should contact the manufacturer rather than expecting a different length out of the box.\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\u003eSturdy 316 stainless steel body and heli-arc style welded joints reported by users give long-term durability.\u003c\/li\u003e\n\u003cli\u003eReliable OKI reed switch eliminates fragile thick-film parts, reducing failures.\u003c\/li\u003e\n\u003cli\u003eStraightforward installation with gasket and screws makes replacement quick for DIYers.\u003c\/li\u003e\n\u003cli\u003eAccurate readings and good fit reported for common tank sizes such as 50 gallon tanks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLimited to the American standard 240-33 ohm output curve, so systems with different calibration may need adaptation.\u003c\/li\u003e\n\u003cli\u003eLengths outside the 4in-32in range are not standard and require contacting the seller for options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003e100TECH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003e240-33 ohms (240 empty, 33 full)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength options\u003c\/td\u003e\n\u003ctd\u003eStandard lengths 4in to 32in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloat diameter\u003c\/td\u003e\n\u003ctd\u003e1.38in (35mm); hole approx 1.50in (38mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eSAE 5-hole mounting pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e316 stainless steel, rugged construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 100TECH Fuel Sending Unit is a practical, value-oriented replacement for arm type senders where durability and low maintenance matter. Its OKI reed switch and stainless steel build make it a smart pick for boats, trucks and RVs that accept the 240-33 ohm curve, and the included hardware simplifies installation. For anyone looking for a long-lasting, accurate sender that fits common mounting patterns, this unit represents good value.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it fit standard fuel gauges?\u003c\/strong\u003e\u003cbr\u003eYes, it uses the American standard 240-33 ohm output so it is compatible with gauges expecting that range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat mounting pattern does it use?\u003c\/strong\u003e\u003cbr\u003eIt uses an SAE 5-hole mounting pattern and ships with gasket and mounting screws for direct replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I get other lengths?\u003c\/strong\u003e\u003cbr\u003eStandard lengths cover 4in to 32in; contact the seller directly if you need a length outside that range.\u003c\/p\u003e","brand":"100TECH","offers":[{"title":"Default Title","offer_id":48637065494747,"sku":"B092MWVJ1J","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51vZF89ZMQS._AC_SL1001_5a52906d-4f27-4f55-97a0-995f138391bb.jpg?v=1778538085","url":"https:\/\/gearmusthave.com\/products\/100tech-fuel-sending-unit-240-33-ohms-11in-durable-reed-switch","provider":"GearMustHave","version":"1.0","type":"link"}