{"product_id":"towworks-trailer-hitch-locking-pin-5-8-x-4-1-2-keyed-unique-for-3-receivers-anti-rattle-tubular-push-lock","title":"TowWorks Trailer Hitch Locking Pin 5\/8\" x 4-1\/2\" Keyed-Unique for 3\" Receivers — Anti-Rattle, Tubular Push-Lock","description":"\u003cp\u003e\u003cstrong\u003eTowWorks 79831 is an extra-long 5\/8\" diameter trailer hitch locking pin with a 4-1\/2\" active span, built to secure adjustable channel-style hitches and 3\" receivers with a keyed-unique tubular lock.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you're towing heavy equipment or simply parking your trailer, the right locking pin keeps your hitch and cargo secure. The TowWorks 79831 combines an extended steel pin, anti-rattle rubber O-rings, a push-lock tubular mechanism with dust protection, and an independent spring clip for added redundancy. It’s sized to work with many popular adjustable hitch and pintle hook assemblies — just confirm measurements before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWill this hitch lock fit my adjustable channel-style hitch?\u003c\/h3\u003e\n\n\u003cp\u003eThe 79831 is designed with a 5\/8\" diameter and a maximum active length of 4-1\/2\", matching many adjustable channel hitches such as specific CURT models and several adjustable pintle hooks. It does not fit every brand — for example, it is not compatible with FASTWAY adjustable hitches — so measuring your receiver and channel width is essential.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePin diameter: 5\/8\" (0.625\")\u003c\/li\u003e\n  \u003cli\u003eMaximum active span: 4-1\/2\" (114.3 mm)\u003c\/li\u003e\n  \u003cli\u003eCommonly fits CURT channel-style adjustable hitches 45900, 45901, 45902\u003c\/li\u003e\n  \u003cli\u003eIncompatible with FASTWAY adjustable hitches — verify dimensions first\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the lock stop rattles and protect the mechanism?\u003c\/h3\u003e\n\n\u003cp\u003eTowWorks includes rubber O-rings that compress to remove play between the pin and receiver tube, cutting down noise and vibration during travel. The lock barrel has a watertight dust rubber cap to shield the tubular lock from moisture and grit, helping maintain smooth operation over time.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRubber O-rings reduce movement and road noise\u003c\/li\u003e\n  \u003cli\u003eWatertight rubber cap prevents internal corrosion of the lock\u003c\/li\u003e\n  \u003cli\u003eAdjustable O-ring quantity lets you fine-tune fit for different tube tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat security features does this pin include?\u003c\/h3\u003e\n\n\u003cp\u003eThe 79831 uses a tubular push-lock mechanism with a quarter-turn action for quick locking and unlocking. Each unit ships keyed unique — two tubular keys are included — and a separate spring clip (cotter pin) is supplied for redundant mechanical retention, which must be installed when using the lock for safety.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eKeyed unique tubular lock for individualized security\u003c\/li\u003e\n  \u003cli\u003eTwo tubular keys included for convenience\u003c\/li\u003e\n  \u003cli\u003eSeparate spring clip (cotter pin) provides backup retention\u003c\/li\u003e\n  \u003cli\u003ePush-lock and quarter-turn operation for fast use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I ensure a proper fit before buying?\u003c\/h3\u003e\n\n\u003cp\u003eMeasure the inside width of your adjustable channel or receiver tube and the distance the pin needs to span. Compare those numbers with the 5\/8\" diameter and 4-1\/2\" maximum active length; adjust or remove O-rings if necessary for a snug fit. If you need multiple locks keyed alike, choose the alternate TowWorks SKU that offers keyed-alike options.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMeasure receiver\/channel inside width and required pin span\u003c\/li\u003e\n  \u003cli\u003eConfirm pin diameter 5\/8\" matches your hitch hole\u003c\/li\u003e\n  \u003cli\u003eRemove or add O-rings to eliminate play if required\u003c\/li\u003e\n  \u003cli\u003eOrder SKU 79830 for multiple locks keyed alike\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The TowWorks 79831 is intended for trailer owners, contractors, and fleet managers who use adjustable channel-style hitches or pintle hooks and need a heavier-duty, extra-long locking pin. It suits users who want a compact tubular lock with anti-rattle features and a redundant cotter-pin option — provided they confirm fit dimensions first.\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 the 79831 fit FASTWAY adjustable hitches?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The TowWorks 79831 is not compatible with FASTWAY adjustable hitches; verify your hitch dimensions before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are additional keys or keyed-alike options available?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each 79831 is keyed unique with two keys. For locks keyed alike, order TowWorks SKU 79830 instead.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TowWorks","offers":[{"title":"Default Title","offer_id":48086330867870,"sku":"B0978V7JJC","price":45.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/towworks-79831-front-view-lock-installed.jpg?v=1785895164","url":"https:\/\/northtrailauto.ca\/products\/towworks-trailer-hitch-locking-pin-5-8-x-4-1-2-keyed-unique-for-3-receivers-anti-rattle-tubular-push-lock","provider":"North Trail Auto","version":"1.0","type":"link"}