{"title":"Brake Valve","description":"\u003ch2\u003eGenuine OEM Brake Valves\u003c\/h2\u003e\n\u003cp\u003eA leaking or malfunctioning brake valve can cause uneven air pressure distribution, delayed brake response, or a complete loss of braking on part of the system. Because brake valves regulate and direct compressed air throughout the air brake circuit — from the foot valve to relay valves and quick-release valves — a wrong or generic replacement often can't maintain the precise pressure thresholds the system requires. That's why every brake valve in this collection is genuine OEM, matched to the manufacturer's original part number.\u003c\/p\u003e\n\u003ch3\u003eWhat's in this category\u003c\/h3\u003e\n\u003cp\u003eThis collection covers genuine OEM brake valves for heavy-duty trucks and equipment, including foot valves, relay valves, quick-release valves, and other air brake circuit components engineered to regulate pressure and airflow within the manufacturer's original brake system specifications. New listings are added regularly as inventory expands.\u003c\/p\u003e\n\u003ch3\u003eWhy order your brake valves here\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine OEM only\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— every valve is matched to the manufacturer's original part number, not a generic equivalent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for accurate fitment\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— listings include the exact OEM number so you can verify the right part before you buy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast turnaround\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— ships quickly to restore reliable air pressure control and safe braking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"brake-valve-faq\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eWhat does a brake valve do?\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIt regulates and directs compressed air through the brake system, controlling when and how much pressure reaches the brake chambers on each axle. Different valve types handle different functions — from initial driver input (foot valve) to pressure relay and quick release.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eSigns of a failing brake valve?\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAir leaks from the valve body, slow or uneven brake application, brakes that won't fully release, inconsistent brake pedal feel, or low air pressure on one circuit of the system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eGenuine OEM or aftermarket?\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAll parts here are genuine OEM — no generic substitutes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eHow do I find the right brake valve?\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMatch the OEM number on your old valve, or check your service manual for the correct valve type and system configuration, then search that number above.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eBrowse the full selection below, or search by OEM part number to find your exact match.\u003c\/p\u003e","products":[{"product_id":"k066311-genuine-bendix-tp-5-tractor-protection-brake-valve","title":"K066311 Genuine Bendix TP-5 Tractor Protection Brake Valve","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"205\" data-end=\"603\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe K066311 is a genuine Bendix TP-5 tractor protection brake valve specified for Kenworth and Peterbilt semi-truck air brake systems equipped for trailer operation. This pneumatic valve helps isolate the tractor's air supply from the trailer braking circuit when trailer air pressure is lost or the trailer becomes disconnected, protecting the tractor's available compressed air supply.\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cp data-start=\"632\" data-end=\"746\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan\u003eThe K066311 Bendix TP-5 tractor protection brake valve operates within the tractor-to-trailer pneumatic brake connection, providing air circuit protection during trailer pressure loss or separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eIsolates tractor air brake supply from the trailer circuit when required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eResponds to trailer air pressure loss within the pneumatic braking arrangement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eHelps retain compressed air within the tractor's own braking system\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eSupports protective operation during unexpected trailer air line disconnection events\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eFunctions as part of the designated tractor and trailer brake interface\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eUses the TP-5 valve configuration specified for compatible Kenworth and Peterbilt applications\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGeneral Specifications\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; display: block;\"\u003e\n\u003ctable style=\"height: 147.45px; width: 100% !important; table-layout: fixed !important; display: table !important;\" class=\"product-table\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width: 29.6099%;\"\u003e\n\u003ccol style=\"width: 70.2128%;\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 10.25px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eCondition\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNew\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003ePart Number\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eK066311\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBendix\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003ePart Type\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTractor Protection Brake Valve\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eValve Model\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTP-5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eVehicle Applications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKenworth, Peterbilt\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eSystem\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTractor-Trailer Air Brake System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eFitment Type\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDirect Replacement\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp data-start=\"1579\" data-end=\"2015\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe K066311 should be installed after identifying the existing TP-5 valve arrangement, inspecting the tractor-to-trailer air lines, and confirming that the valve's pneumatic connections correspond to the vehicle's brake circuit layout. Following installation, restore system air pressure, inspect the connected lines and fittings for leakage, and perform the prescribed tractor protection and trailer brake circuit tests before returning the truck to operation.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp data-start=\"2025\" data-end=\"2165\" class=\"PDq2pG_selectionAnchorContainer\"\u003eAlways verify the original valve part number, TP-5 configuration, pneumatic port arrangement, tractor air brake circuit design, and Kenworth or Peterbilt application before installation.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Paccar","offers":[{"title":"Default Title","offer_id":44124848947263,"sku":"K066311","price":580.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/3971\/7695\/files\/s-l1600_0b8bf866-ec4e-41ce-b97e-10b2431012bf.webp?v=1792085261"}],"url":"https:\/\/linetruckparts.com\/collections\/brake-valve.oembed","provider":"Line Truck Parts","version":"1.0","type":"link"}