{"product_id":"fuel-sending-unit-240-33-ohms-13in-reed-switch-sender-durable-fit","title":"Fuel Sending Unit 240-33 ohms 13in Reed Switch Sender - Durable Fit","description":"\u003cp\u003eIn this review the 100TECH 240-33 ohm fuel sending unit is examined for boat and vehicle owners who need a reliable replacement sender. The bottom line: it is a straightforward, durable direct replacement for arm type senders that excels because it uses an OKI reed switch imported from Japan, eliminating delicate moving electronics and reducing maintenance. Installers looking for a solid steel sender with American standard output and clear instructions will find this unit practical and dependable.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOKI reed switch:\u003c\/strong\u003e Provides greater durability and long term reliability compared with thick-film swim arm style senders so users see fewer failures over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e240-33 ohm output:\u003c\/strong\u003e Matches American standard gauges with 240 ohms at empty and 33 ohms at full for straightforward compatibility with common fuel gauges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e316 stainless steel construction:\u003c\/strong\u003e Heavy duty, corrosion resistant housing and mounting pattern make it suitable for marine environments and long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete installation kit:\u003c\/strong\u003e Ships with gasket, mounting screws and illustrated instructions which simplifies installation for DIYers and techs alike.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat size and fit guidance:\u003c\/strong\u003e The float is 1.38in diameter and suggested hole if drilling is 1.50in, helping installers plan mounting accurately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 year limited warranty:\u003c\/strong\u003e Backed by free lifetime technical support to assist with fitment and troubleshooting after purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis sender is aimed at boat owners, RV and truck owners, and fleet technicians who need a durable replacement for an arm type fuel sender and prefer a product with minimal moving parts. It is especially good for sailboats and larger fuel tanks where customers reported accurate readings and a clean fit.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include users requiring a nonstandard sender length outside the 4in to 32in range without contacting the maker, or those who need digital, multi-sensor telemetry features that this mechanical-electrical sender does not provide.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSolid build quality with heli-arc style welding and 316 stainless steel for corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eReliable OKI reed switch mechanism with no delicate moving electronics to adjust or replace.\u003c\/li\u003e\n\u003cli\u003eEasy installation: comes with gasket, screws and clear wiring instructions that multiple customers praised.\u003c\/li\u003e\n\u003cli\u003eAccurate readings and good fit for common tank sizes, reported to work well on 50 gallon tanks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOnly available in standard lengths from 4in to 32in without custom ordering, which may not suit every tank depth.\u003c\/li\u003e\n\u003cli\u003eFloat diameter and mounting require drilling a 1.50in hole if no existing access exists.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\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\u003c\/td\u003e\n\u003ctd\u003e13in (330mm) standard option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloat diameter\u003c\/td\u003e\n\u003ctd\u003e1.38in (35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eSAE 5 hole pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eGasket, mounting screws, illustrated instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year limited + lifetime technical support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 100TECH 240-33 ohm fuel sending unit is a practical, well built direct replacement for arm type senders and offers excellent value for owners who need a dependable marine or vehicle fuel sender. Its reed switch design and 316 stainless construction reduce failure points and the included hardware and clear instructions make installation straightforward, so it is a smart buy for DIYers and professionals who want a durable, accurately reading unit.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this work with my 240-33 ohm gauge?\u003c\/strong\u003e\u003cbr\u003eYes, it uses the American standard 240 ohm at empty and 33 ohm at full output to match 240-33 ohm gauges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I get a different length than 13in?\u003c\/strong\u003e\u003cbr\u003eStandard lengths range from 4in to 32in; contact the seller directly for other length options.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to adjust the sender for my tank?\u003c\/strong\u003e\u003cbr\u003eNo adjustment is needed for the tank, but measure tank depth from the top and subtract 1in to avoid the sender hitting the bottom.\u003c\/p\u003e","brand":"100TECH","offers":[{"title":"Default Title","offer_id":48152092737755,"sku":"B092MWZM77","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51vZF89ZMQS._AC_SL1001.jpg?v=1768736392","url":"https:\/\/gearmusthave.com\/products\/fuel-sending-unit-240-33-ohms-13in-reed-switch-sender-durable-fit","provider":"GearMustHave","version":"1.0","type":"link"}