{"product_id":"100tech-fuel-sending-unit-240-33-ohms-8in-durable-stainless-steel","title":"100TECH Fuel Sending Unit 240-33 ohms 8in - Durable Stainless Steel","description":"\u003cp\u003eIn this review the 100TECH fuel sending unit is assessed as a straightforward replacement for arm type senders used in boats, trucks and RVs; the single biggest reason to buy is its durable reed switch design which eliminates delicate moving contacts. For anyone wanting a reliable, no-adjustment fuel or water level sensor with standard American 240-33 ohm output, this unit delivers dependable readings and simple fitment. The review focuses on installation, build quality and how the sender performs in typical marine and vehicle tanks.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOKI reed switch:\u003c\/strong\u003e Imported reed switch provides long service life and greater reliability than thick-film swim arm designs, reducing failure from repeated cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e316 stainless construction:\u003c\/strong\u003e Heavy duty materials and heli-arc style welds resist corrosion in marine environments and give a robust feel during fitting and handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard output:\u003c\/strong\u003e 240-33 ohm output (240 ohm empty, 33 ohm full) works with American standard gauges for straightforward gauge compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy installation:\u003c\/strong\u003e Ships with gasket, mounting screws and clear illustrated instructions so wiring and mounting follow a simple process for most DIY installers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE 5-hole pattern:\u003c\/strong\u003e Common mounting pattern fits many existing tanks and makes replacement less likely to require tank modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat size guidance:\u003c\/strong\u003e Float diameter of 1.38in and suggested drill hole of 1.50in helps installers plan tank entry and clearance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe 100TECH sender suits boat owners, RV builders and light truck owners who need a durable direct replacement for an arm type fuel sender and value long-term reliability over cheaper moveable-arm designs. It is particularly useful for those who prefer a stainless steel assembly and a sensor that requires no in-tank adjustments after installation.\u003c\/p\u003e\u003cp\u003eIt is less suitable for users who need a nonstandard length outside the 4in-32in range without contacting the maker, or for installations where clearance below the top of the tank is tighter than the unit length minus the recommended 1in allowance to avoid hitting the tank bottom.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDurable reed switch eliminates fragile moving electrical contacts for improved longevity.\u003c\/li\u003e\n\u003cli\u003eSolid 316 stainless construction and quality welds give good corrosion resistance and a professional fit.\u003c\/li\u003e\n\u003cli\u003eIncludes gasket and screws with clear wiring instructions for a straightforward installation.\u003c\/li\u003e\n\u003cli\u003eStandard 240-33 ohm output ensures compatibility with common American gauges.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLimited to stated lengths; installers needing custom lengths must contact the supplier.\u003c\/li\u003e\n\u003cli\u003eThe installer must measure tank depth carefully and allow the recommended 1in clearance to avoid the sender hitting the bottom.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\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 ohm (240 empty, 33 full)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e8in (200mm)\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\u003eFloat diameter\u003c\/td\u003e\n\u003ctd\u003e1.38in (35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 100TECH 240-33 ohm 8in fuel sending unit is a practical, cost-effective replacement for arm type senders that prioritizes durability and ease of installation. Its reed switch and 316 stainless construction make it a good choice for marine and vehicle use where longevity and corrosion resistance matter, and the included hardware and instructions minimize installation headaches.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the electrical output?\u003c\/strong\u003e\u003cbr\u003eThe sender uses the American standard 240-33 ohm output, 240 ohm at empty and 33 ohm at full.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it include mounting hardware?\u003c\/strong\u003e\u003cbr\u003eYes, the unit ships with a gasket, mounting screws and illustrated instructions for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I avoid the sender hitting the tank bottom?\u003c\/strong\u003e\u003cbr\u003eMeasure the outside tank depth and subtract 1in from the sender length to ensure adequate clearance inside the tank.\u003c\/p\u003e","brand":"100TECH","offers":[{"title":"Default Title","offer_id":48250528825563,"sku":"B092MVQRV2","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51vZF89ZMQS._AC_SL1001_1ded2240-9ad4-4eaa-b761-50cba5c46a54.jpg?v=1771089908","url":"https:\/\/gearmusthave.com\/products\/100tech-fuel-sending-unit-240-33-ohms-8in-durable-stainless-steel","provider":"GearMustHave","version":"1.0","type":"link"}