{"product_id":"kn7050x-740-air-compressor-haldex-replacement","title":"KN7050X 740 Air Compressor Haldex Replacement","description":"\u003cdiv style=\"font-size: 14px; line-height: 1.6;\"\u003e \u003ch2\u003eKN7050X EL740 Air Compressor – Haldex Style Replacement for Heavy-Duty Truck Air Brake Systems\u003c\/h2\u003e \u003cp\u003eThe \u003cstrong\u003eKN7050X EL740 air compressor\u003c\/strong\u003e is a heavy-duty replacement designed for commercial truck air brake systems used on a wide range of medium- and heavy-duty diesel vehicles. \u003cstrong\u003eThis compressor is stocked and ready to ship from Ace Motor Parts.\u003c\/strong\u003e Engine-driven compressors are responsible for supplying the compressed air required for brake actuation, parking brake operation, and other pneumatic systems used in commercial vehicles.\u003c\/p\u003e \u003cp\u003eThe EL740 compressor design uses a \u003cstrong\u003etwo-cylinder reciprocating piston configuration\u003c\/strong\u003e that produces reliable airflow for fleet vehicles operating under demanding conditions. With a belt-driven pulley system and durable cast housing, the compressor is well suited for trucks that require consistent air system pressure during daily operation.\u003c\/p\u003e \u003ch3\u003eVehicle Applications\u003c\/h3\u003e \u003cp\u003eThe \u003cstrong\u003eKN7050X compressor\u003c\/strong\u003e is commonly used in commercial trucks, semi-tractors, vocational vehicles, and heavy equipment that rely on air brake systems. Applications often include:\u003c\/p\u003e \u003cul style=\"font-size: 14px; line-height: 1.7; margin-left: 18px;\"\u003e \u003cli\u003eHeavy-duty commercial trucks\u003c\/li\u003e \u003cli\u003eSemi-tractors and highway tractors\u003c\/li\u003e \u003cli\u003eVocational trucks used in construction and municipal service\u003c\/li\u003e \u003cli\u003eMedium-duty diesel trucks equipped with air brake systems\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThese compressors are typically installed using a \u003cstrong\u003e4-bolt base mounting configuration\u003c\/strong\u003e and operate through a \u003cstrong\u003epulley-driven belt system\u003c\/strong\u003e connected to the engine accessory drive.\u003c\/p\u003e \u003ch3\u003eEL740 Compressor Design\u003c\/h3\u003e \u003cp\u003eThe EL740 compressor platform utilizes a \u003cstrong\u003etwo-cylinder piston design\u003c\/strong\u003e which compresses air in a single-stage process. The compressor features a combination \u003cstrong\u003eair and water cooling system\u003c\/strong\u003e that helps regulate operating temperatures during continuous use.\u003c\/p\u003e \u003cp\u003eThe unit uses a \u003cstrong\u003eleft-side air inlet and discharge configuration\u003c\/strong\u003e when viewed from the front of the compressor. This layout is commonly used in commercial truck installations where space around the engine accessory drive is limited.\u003c\/p\u003e \u003cp\u003eThe compressor housing and internal components are designed for durability in demanding fleet environments where trucks operate for extended periods and require consistent air supply for braking and auxiliary air systems.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul style=\"font-size: 15px; line-height: 1.8; margin-left: 18px;\"\u003e \u003cli\u003e\u003cstrong\u003eDirect replacement for EL740 and KN7050 air compressors\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003eHeavy-duty \u003cstrong\u003etwo-cylinder reciprocating piston compressor\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003e4-hole base mount configuration\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003ePulley (belt) driven accessory drive\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003eAir and water cooled compressor design\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003eLeft-side air inlet and discharge configuration\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003eDesigned for \u003cstrong\u003ecommercial truck air brake systems\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eReliable performance in \u003cstrong\u003efleet and vocational vehicles\u003c\/strong\u003e\n\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px;\" border=\"1\" cellpadding=\"10\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eKN7050X\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCompressor Model\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eEL740\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCompressor Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eTwo-Cylinder Reciprocating Piston\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMounting Style\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e4-Hole Base Mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDrive Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003ePulley \/ Belt Driven\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCooling Method\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eAir \/ Water Cooled\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eAir Inlet Location\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eLeft (Viewed From Front)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eAir Outlet Location\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eLeft Flange (Viewed From Front)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eApproximately 32 lbs\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eHeavy-Duty Truck Air Brake Systems\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch3\u003eNavistar OEM Cross Reference\u003c\/h3\u003e \u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px;\" border=\"1\" cellpadding=\"8\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e398567C91\u003c\/td\u003e \u003ctd\u003e398567C92\u003c\/td\u003e \u003ctd\u003e874706R2\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e874706R93\u003c\/td\u003e \u003ctd\u003e874707R93\u003c\/td\u003e \u003ctd\u003e990177C91\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e997104R91\u003c\/td\u003e \u003ctd\u003e997109R91\u003c\/td\u003e \u003ctd\u003eR9557050\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch3\u003eCAT OEM Cross Reference\u003c\/h3\u003e \u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px;\" border=\"1\" cellpadding=\"8\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e623033\u003c\/td\u003e \u003ctd\u003e680620\u003c\/td\u003e \u003ctd\u003e681504\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch3\u003eGM OEM Cross Reference\u003c\/h3\u003e \u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px;\" border=\"1\" cellpadding=\"8\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e2397310\u003c\/td\u003e \u003ctd\u003e2428601\u003c\/td\u003e \u003ctd\u003e2435566\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e2456774\u003c\/td\u003e \u003ctd\u003e2457495\u003c\/td\u003e \u003ctd\u003e2468827\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e2493844\u003c\/td\u003e \u003ctd\u003e2499019\u003c\/td\u003e \u003ctd\u003e3827932\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e3876238\u003c\/td\u003e \u003ctd\u003e3957461\u003c\/td\u003e \u003ctd\u003e5106141\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch3\u003eKN7050X \/ EL740 Compressor Cross Reference\u003c\/h3\u003e \u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px;\" border=\"1\" cellpadding=\"8\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eE-MDKN7050X\u003c\/td\u003e \u003ctd\u003eEL7050\u003c\/td\u003e \u003ctd\u003eEL740\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eKN7050\u003c\/td\u003e \u003ctd\u003eKN7050N\u003c\/td\u003e \u003ctd\u003eZZKN7050X\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e\u003cem\u003eAlways confirm mounting configuration, pulley alignment, and engine compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e \u003ch3\u003eThe Role of the Air Compressor in Truck Brake Systems\u003c\/h3\u003e \u003cp\u003eThe air compressor is a critical component in commercial vehicle braking systems. It continuously generates compressed air which is stored in reservoirs and used when the driver applies the brakes.\u003c\/p\u003e \u003cp\u003eIf a compressor begins to lose efficiency due to internal wear, the air system may take longer to build pressure. Replacing a worn compressor helps restore proper braking system operation and ensures reliable air supply for both brake actuation and auxiliary air components.\u003c\/p\u003e \u003cp\u003eBrowse our full inventory of \u003ca href=\"..\/..\/..\/..\/air-brake-compressors\/\"\u003eair brake compressors\u003c\/a\u003e or explore our selection of \u003ca href=\"..\/..\/..\/..\/surplus-air-brake-compressors-for-heavy-duty-trucks\/\"\u003esurplus air brake compressors for heavy duty trucks\u003c\/a\u003e available from Ace Motor Parts.\u003c\/p\u003e \u003c\/div\u003e","brand":"AMP","offers":[{"title":"Default Title","offer_id":48588399018233,"sku":"RMXKN7050X","price":674.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9290\/9049\/files\/5003563__07571.png?v=1782246499","url":"https:\/\/acemotorparts.com\/products\/kn7050x-740-air-compressor-haldex-replacement","provider":"Ace Motor Parts","version":"1.0","type":"link"}