{"product_id":"marine-reverse-lock-out-solenoid-12v-trailer-disc-drum-brake-actuator-lockout","title":"Dexter Reverse Lockout Solenoid K68-539-00 for Boat Trailer Disc and Drum Brakes","description":"\u003cp\u003eThe Dexter Reverse Lockout Solenoid (K68-539-00) is installed at the brake actuator on a boat trailer to allow normal backing up without engaging the trailer's surge brakes. It is intended for actuators that do not already have a built-in reverse lockout lever or switch. Once wired in, the solenoid disengages the brake actuator's hydraulic function while the tow vehicle is in reverse, then automatically restores normal braking when driving forward again. This makes it a straightforward add-on for trailer owners whose actuator lacks a mechanical lockout mechanism.\u003c\/p\u003e\u003cp\u003eThe solenoid is a 12 volt electrical component that connects into the trailer's reverse-light circuit and the brake actuator. It is compatible with disc brake actuators, which require a reverse lockout device, and can also be used on drum brake setups. The housing has a painted exterior finish for corrosion resistance in a marine trailer environment.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Dexter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e K68-539-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Boat Trailer Brakes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Reverse lockout solenoid for brake actuator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 Volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Brake Types:\u003c\/strong\u003e Disc brakes (required); also usable on drum brakes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 7 x 4.75 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.58 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Painted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 876983010073\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e81103\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Dexter K68-539-00 reverse lockout solenoid do?\u003c\/strong\u003e It disengages a trailer's brake actuator while backing up, so the surge brakes do not drag or lock while the tow vehicle is in reverse, then restores normal braking when moving forward again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need this solenoid if my actuator already has a reverse lockout lever?\u003c\/strong\u003e No. The K68-539-00 is meant for actuators that do not have a built-in reverse lockout lever or switch; if the actuator already has that mechanical feature, a separate solenoid is not needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the K68-539-00 be used with disc brakes?\u003c\/strong\u003e Yes, disc brake actuators require a reverse lockout device such as the K68-539-00 if they lack a built-in lockout lever or switch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this solenoid work on drum brakes too?\u003c\/strong\u003e Yes, the Dexter K68-539-00 can also be used on trailers equipped with drum brakes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage is the K68-539-00 solenoid?\u003c\/strong\u003e It is a 12 volt solenoid, matching standard trailer electrical systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of this solenoid?\u003c\/strong\u003e The K68-539-00 measures 7 x 4.75 x 2 inches and weighs 0.58 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a cross-reference number for the K68-539-00?\u003c\/strong\u003e Yes, the Dexter K68-539-00 cross-references to part number 81103.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the solenoid know when the trailer is in reverse?\u003c\/strong\u003e It is wired into the reverse circuit at the brake actuator, so it activates automatically whenever the tow vehicle shifts into reverse.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the K68-539-00 housing have?\u003c\/strong\u003e The solenoid housing has a painted exterior finish suited to a marine trailer environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the K68-539-00 sold as a complete kit?\u003c\/strong\u003e The K68-539-00 is the solenoid unit itself, which is installed at the brake actuator as part of the reverse lockout wiring.\u003c\/p\u003e","brand":"Dexter","offers":[{"title":"Default Title","offer_id":48991262474459,"sku":"DEX-K68-539-00","price":69.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/81103__63043.1739462859.500.750.jpg?v=1785188310","url":"https:\/\/www.goodvibesmarina.com\/products\/marine-reverse-lock-out-solenoid-12v-trailer-disc-drum-brake-actuator-lockout","provider":"Good Vibes Marina","version":"1.0","type":"link"}