{"product_id":"master-lock-keyed-alike-universal-trailer-coupler-locks-379ka-10-one","title":"Master Lock Keyed Alike Universal Trailer Coupler Locks 379KA-10 - One","description":"\u003cp\u003eIn this review the focus is on convenience and fleet security: the Master Lock 379KA-10 is a pack of ten universal trailer coupler locks that all use a single key. For anyone managing multiple trailers, rental units, or a small fleet, the biggest reason to consider these locks is the keyed alike convenience combined with a robust zinc die-cast body and a design that resists blunt-force removal. Each lock ships with two keys, so a single purchase provides twenty keys and straightforward, repeatable protection against tow-away theft.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyed alike set:\u003c\/strong\u003e Ten locks all operate with one key for simple access across multiple trailers without juggling different keys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo keys per lock:\u003c\/strong\u003e Each lock includes two keys, giving a total of twenty keys to distribute or keep as backups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal fit:\u003c\/strong\u003e The coupler lock fits 1-7\/8in, 2in and most 2-5\/16in couplers from common manufacturers for broad compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced construction:\u003c\/strong\u003e Zinc die-cast body resists rust, corrosion and impact better than many alternative materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign resists blunt attacks:\u003c\/strong\u003e The lock sits on top of the coupler and can rotate, which makes downward hammer strikes and sledge attempts harder to succeed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRekeyable cylinder:\u003c\/strong\u003e The cylinder can be rekeyed for added convenience and improved key management if needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis pack is ideal for small business owners, contractors, and fleet managers who need multiple trailer locks that operate with a single key. If you maintain several trailers or tow vehicles and want a simple, repeatable locking solution that fits common coupler sizes, this set removes the hassle of managing many different keys.\u003c\/p\u003e\n\u003cp\u003eThose who want the absolute highest level of high-security locking or an electronic solution may prefer purpose-built heavy-duty hitch locks or alarmed devices; likewise, single-lock buyers who only need one coupler lock should consider a single-unit purchase instead of a 10-pack.\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\u003eAll ten locks keyed alike simplifies access and reduces key clutter for operators.\u003c\/li\u003e\n\u003cli\u003eZinc die-cast construction offers good resistance to corrosion and impact for outdoor use.\u003c\/li\u003e\n\u003cli\u003eUniversal fit covers the most common coupler sizes, reducing compatibility worries.\u003c\/li\u003e\n\u003cli\u003eTwo keys per lock provide immediate spares for distribution or backup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers report mixed impressions of build quality compared with heavier specialty locks.\u003c\/li\u003e\n\u003cli\u003eThe pack is keyed the same by default, so ordering multiple packs will result in identical keys unless rekeyed later.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eTrailer coupler\/tongue locks (10-pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeying\u003c\/td\u003e\n\u003ctd\u003eKeyed alike set (one key opens all)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded keys\u003c\/td\u003e\n\u003ctd\u003eTwo keys per lock (20 keys total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits coupler sizes\u003c\/td\u003e\n\u003ctd\u003e1-7\/8in, 2in and most 2-5\/16in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eReinforced zinc die-cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight per lock\u003c\/td\u003e\n\u003ctd\u003e2.4 lbs each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited lifetime warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Master Lock 379KA-10 is a practical, cost-effective solution for anyone who needs multiple trailer locks that use a single key. Its universal fit, corrosion-resistant zinc body, and anti-blunt-force design make it a sensible choice for fleet or multi-trailer use; buyers seeking the absolute highest heavy-security hardware might opt for other specialty locks, but for value and convenience this set delivers strong everyday protection.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill all locks arrive with the same key?\u003c\/strong\u003e\u003cbr\u003eYes, the 10-pack is keyed alike by default so the same key operates every lock.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat coupler sizes does this lock fit?\u003c\/strong\u003e\u003cbr\u003eThe lock fits 1-7\/8in, 2in and most 2-5\/16in couplers used by common manufacturers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the cylinder be rekeyed?\u003c\/strong\u003e\u003cbr\u003eYes, the cylinder is rekeyable for convenience or to change keying later.\u003c\/p\u003e","brand":"Master Lock","offers":[{"title":"Default Title","offer_id":48226255700187,"sku":"B09RG5PNT3","price":332.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81oyMn-qc6L._AC_SL1500.jpg?v=1770730900","url":"https:\/\/gearmusthave.com\/products\/master-lock-keyed-alike-universal-trailer-coupler-locks-379ka-10-one","provider":"GearMustHave","version":"1.0","type":"link"}