{"product_id":"boyisen-5th-wheel-king-pin-lock-solid-steel-security-ergonomic-handle-warning-tag","title":"BOYISEN 5th Wheel King Pin Lock — Solid Steel Security, Ergonomic Handle \u0026 Warning Tag","description":"\u003cp\u003e\u003cstrong\u003eBOYISEN 5th Wheel King Pin Lock is a heavy-duty solid-steel trailer kingpin lock with an ergonomic handle, blossom locking mechanism, and high-visibility warning tag to secure your fifth-wheel trailer.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for owners of RVs, campers, boats on fifth-wheel trailers and commercial semi-trucks, this upgraded king pin lock focuses on practicality and theft deterrence. It uses a hardened steel body and a blossom-style internal lock to resist tampering and drill attacks, while the outward-turned cylinder and built-in handle make locking and unlocking quicker and safer. The bright warning tag reduces the chance of attempting to hitch with the lock still in place.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this king pin lock improve day-to-day use?\u003c\/h3\u003e\n\u003cp\u003eThe BOYISEN lock adds an ergonomic handle and reorients the locking cylinder outward so you can install and remove it without awkward hand positions. The changes save a few minutes each time you secure or release the trailer, which is especially helpful for drivers who handle hitching frequently.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHandle for easier grip and torque when turning the lock.\u003c\/li\u003e\n  \u003cli\u003eOutward-facing cylinder reduces bending and improves access in tight spaces.\u003c\/li\u003e\n  \u003cli\u003eCompact form that fits standard king pin dimensions for straightforward installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes its security features reliable against theft?\u003c\/h3\u003e\n\u003cp\u003eSecurity combines material strength with lock design. The solid steel exterior is drill resistant and corrosion protected, while the blossom lock mechanism prevents common pry-and-lift techniques, offering a higher level of tamper resistance than basic cylinder locks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid steel construction reduces cutting and bending risks.\u003c\/li\u003e\n  \u003cli\u003eBlossom lock design protects the shackle area from prying tools.\u003c\/li\u003e\n  \u003cli\u003eCoated finish helps prevent rust and maintains integrity in harsh weather.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my fifth-wheel king pin and what are its dimensions?\u003c\/h3\u003e\n\u003cp\u003eThe BOYISEN lock is sized to match standard king pins and is listed with precise measurements so you can confirm fit before purchase. Measure your king pin flange and compare to the listed inner and outer diameters to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeight: 93.5 mm for clearance around the pin head.\u003c\/li\u003e\n  \u003cli\u003eInner diameter: 74 mm to accept the king pin size.\u003c\/li\u003e\n  \u003cli\u003eExternal diameter: 150 mm giving full coverage and robust shielding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat practical accessories and conveniences are included?\u003c\/h3\u003e\n\u003cp\u003eThe package includes keys and a prominent warning tag that improves both security and safety during hitching operations. BOYISEN provides spare keys and a key ID system to help replace lost keys without replacing the entire lock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComes with two keys; later batches include a printed key ID for easy replacement.\u003c\/li\u003e\n  \u003cli\u003eHigh-visibility warning tag to prevent accidental hitch attempts with the lock installed.\u003c\/li\u003e\n  \u003cli\u003eDurable coated finish for long service life outdoors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? BOYISEN 5th Wheel King Pin Lock is intended for RV owners, fleet operators, trucking companies, dealers, and seasonal campers who need a reliable, easy-to-use anti-theft solution. If you regularly hitch or unhitch trailers and want a visible, heavy-duty lock that simplifies handling while improving tamper resistance, this lock fits those needs. Before ordering, verify your king pin dimensions against the listed sizes to ensure a proper fit.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this lock fit all standard fifth-wheel king pins?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits standard-sized king pins; compare your pin to the listed inner diameter 74mm and external diameter 150mm to confirm compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What happens if I lose the keys?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Newer batches include a key ID printed on the key—provide that ID to order a replacement key from BOYISEN.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BOYISEN","offers":[{"title":"Default Title","offer_id":48083759267998,"sku":"B07XD9G55J","price":55.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/boyisen-kingpin-lock-front-view_96a95746-d1bf-4a9b-b774-57ad904fa81c.jpg?v=1785835698","url":"https:\/\/northtrailauto.ca\/products\/boyisen-5th-wheel-king-pin-lock-solid-steel-security-ergonomic-handle-warning-tag","provider":"North Trail Auto","version":"1.0","type":"link"}