{"product_id":"466gc4101mx-genuine-mack®-engine-rocker-arm-shaft-e7-aseе","title":"466GC4101MX | Genuine Mack® Engine Rocker Arm Shaft E7 ASEЕ","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e: Engine Rocker Arm Shaft E7 ASEЕ\u003cbr\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e: Mack®\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: New\u003cbr\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 466GC4101MX\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. Compatible Engines\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\" id=\"p-rc_4ed958d63ea95555-39\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-101 citation-end-101\"\u003eMack E7 Series\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/b\u003e \u003cspan class=\"citation-100 citation-end-100\"\u003e(4-Valve Heads, Non-Dynatard \/ Non-Engine Brake configurations).\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003eMack E7 E-Tech Series\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\" id=\"p-rc_4ed958d63ea95555-40\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-99 citation-end-99\"\u003eMack E7 ASET™ Series\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/b\u003e (ASET AI and AC engine variants \u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"53\"\u003ewithout engine brake\u003c\/b\u003e \/ non-J-Tech\/PowerLeash models). \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003e2. Compatible Vehicles \u0026amp; Models\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eThis part fits various Mack heavy-duty trucks built throughout the 1990s and 2000s equipped with the E7 or ASET engine platforms:\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eMack Granit (CV \/ GU Series)\u003c\/b\u003e — Highway, Vocational, and Dump Trucks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eMack Vision (CX Series)\u003c\/b\u003e — Highway \/ Regional Haul.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eMack CH \/ CL Series\u003c\/b\u003e — Heavy-duty Vocational and Highway models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eMack MR \/ LE Series\u003c\/b\u003e — Refuse trucks and specialty chassis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe \u003cb data-path-to-node=\"0\" data-index-in-node=\"4\"\u003eEngine Rocker Arm Shaft Assembly\u003c\/b\u003e is a factory remanufactured valve train support unit designed for heavy-duty Mack E7 and E7 ASET™ series diesel engines.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003e1. What is it?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eThe 466GC4101MX is a critical component of the engine's overhead valve train (OHV). Mounted on the cylinder head, this precision-machined shaft acts as the stationary pivot axis for the engine's rocker arms, transferring motion from the pushrods to open and close the intake and exhaust valves at precise intervals.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003e2. Core Features \u0026amp; REMACK® Quality\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eREMACK® Factory Remanufactured (\"MX\" Suffix):\u003c\/b\u003e Restored directly by Mack to original factory engineering specifications, ensuring strict dimensional tolerances and metallurgy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eInternal Lubrication Galleries:\u003c\/b\u003e Features precision-drilled oil passages that route pressurized engine oil through the shaft to continuously lubricate rocker arm bushings and reduce friction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eNon-Engine Brake Application:\u003c\/b\u003e Specifically configured for engines \u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"66\"\u003ewithout auxiliary engine brakes\u003c\/b\u003e (such as PowerLeash™ or J-Tech™ systems).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of Faulty\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003e1. Loud Valvetrain Ticking or Clattering Noises\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eExcessive wear on the shaft surface or inside the rocker arm bushings creates extra mechanical clearance (slap). This results in a distinct, rhythmic metallic clicking, ticking, or heavy chattering noise from under the valve cover that accelerates with engine RPM.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003e2. Engine Misfires \u0026amp; Rough Idle (Poor Valve Lift)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eIf the rocker shaft scores, galling occurs, or the shaft cracks, the rocker arms will bind or fail to pivot smoothly. This prevents the intake or exhaust valves from opening fully, causing power loss, engine misfires, rough idling, and hesitation under load.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003e3. Low Upper-Engine Oil Pressure\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003eThe rocker shaft features internal precision galleries that feed pressurized oil to the rocker arms and pushrod ends. Excessive clearance from a worn shaft allows oil to bypass the bushings and bleed off freely, causing a drop in oil pressure at the top end of the engine.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003e4. Accelerated Valve Stem \u0026amp; Pushrod Wear\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003eWhen the shaft loses its precision alignment or proper oiling, increased friction causes uneven wear on the pushrod cups, adjusting screws, and valve tips. Left unchecked, this can bend pushrods or destroy valve stems.\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003e5. Metal Shavings in Oil \/ Clogged Oil Filters\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003eGalling between the hardened steel shaft and the rocker bushings releases fine bronze or steel particles into the engine oil system, which can be found in the oil pan or embedded in the oil filter media.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eManufacturer information\u003c\/strong\u003e\u003cbr\u003eMack trucks are built to last, but when the time for repair and maintenance comes it’s strongly recommended to use genuine \u003cstrong\u003eMack®\u003c\/strong\u003e components. Designed and manufactured according to strict OEM specifications, Mack parts offer the same engineering and performance as their stock equivalent. This ensures a seamless fit, smooth installation, and reliable operation overall. Mack offers a wide range of genuine parts, including engine, exhaust, transmission, cab, and body parts and accessories. It also offers remanufactured components that offer the same good-as-new quality at a more accessible price range. All genuine Mack parts are tested in both the laboratory and field environments to ensure they meet or exceed industry standards.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003cbr\u003eFirst Truck Parts offers a \u003cstrong\u003e365-days\u003c\/strong\u003e \u003cstrong\u003ewarranty\u003c\/strong\u003e for all types of parts and in any condition. The warranty applies only to buyers who have placed an order on our website.\u003c\/p\u003e","brand":"Mack®","offers":[{"title":"Default Title","offer_id":48923197440244,"sku":"466GC4101MX","price":989.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/1479\/5764\/files\/images_9e67f166-51fc-4dbe-8070-bf973f6fc843.jpg?v=1785189734","url":"https:\/\/firsttruckparts.com\/en-ca\/products\/466gc4101mx-genuine-mack%c2%ae-engine-rocker-arm-shaft-e7-ase%d0%b5","provider":"First Truck Parts","version":"1.0","type":"link"}