{"product_id":"x-autohaux-mercedes-benz-serpentine-belt-tensioner-idler-pulley-assembly-metal-direct-fit-set-for-c-e-clk-ml-s-models","title":"X AUTOHAUX Mercedes-Benz Serpentine Belt Tensioner \u0026 Idler Pulley Assembly — Metal Direct-Fit Set for C\/E\/CLK\/ML\/S Models","description":"\u003cp\u003e\u003cstrong\u003eX AUTOHAUX replacement belt tensioner and idler pulley assembly restores proper serpentine belt tension for compatible Mercedes-Benz models, reducing belt noise and helping accessories run smoothly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned as a direct-fit aftermarket replacement, this X AUTOHAUX serpentine drive belt tensioner and idler pulley assembly matches original equipment fitment for a range of Mercedes-Benz model years. Built from durable metal components and supplied as a complete set, it replaces worn or noisy tensioners and idlers to return the accessory drive to the correct tension and alignment.\u003c\/p\u003e\n\n\u003ch3\u003eWill this assembly fit my Mercedes-Benz model and year?\u003c\/h3\u003e\n\u003cp\u003eCheck compatibility against your vehicle’s year, model, and OE number before purchasing. The assembly fits many late-1990s to mid-2000s Mercedes models, including C, E, CLK, CL, ML, S, SL and others listed by X AUTOHAUX.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon fitment: C240\/C320 (2001–2005), E320\/E500 (1998–2006), CLK320\/CLK430\/CLK500 (1998–2006).\u003c\/li\u003e\n  \u003cli\u003eAlso covers: CL500, CLS500, G500, ML320\/ML350\/ML430\/ML500, R500, S350\/S420\/S430, SL55 and more.\u003c\/li\u003e\n  \u003cli\u003eVerify OE numbers: 1122000970, 0002020919, 0119979792 to confirm match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this tensioner and idler pulley help my engine accessories?\u003c\/h3\u003e\n\u003cp\u003eThe assembly maintains correct serpentine belt tension so the alternator, A\/C compressor, power steering pump and other accessories operate efficiently. A properly tensioned belt reduces slip, chatter and premature wear on pulleys and belts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores original belt alignment and tension to reduce squeal and vibration.\u003c\/li\u003e\n  \u003cli\u003eReplaces worn bearings and spring mechanisms that cause noise or loss of tension.\u003c\/li\u003e\n  \u003cli\u003eHelps protect accessory drives and extends the life of the serpentine belt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and quality features does the X AUTOHAUX set include?\u003c\/h3\u003e\n\u003cp\u003eThe A\/C belt tensioner assembly is constructed primarily of metal for strength and durability. Components are engineered to withstand engine bay heat and load, making them suitable as a long-life aftermarket option.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable metal construction for the tensioner body and idler pulley hubs.\u003c\/li\u003e\n  \u003cli\u003ePrecision bearings and a designed spring mechanism to maintain consistent tension.\u003c\/li\u003e\n  \u003cli\u003eSold as a complete set — includes the tensioner pulley and idler pulley for one replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s in the package and how do I confirm I’m ordering the right part?\u003c\/h3\u003e\n\u003cp\u003eThe package contains one set of belt tensioner and idler pulley components ready for installation. Before ordering, compare your vehicle’s year\/make\/model and the OE number printed on the existing part to the listed OE numbers in the product details to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: 1 set (belt tensioner pulley and idler pulley assembly).\u003c\/li\u003e\n  \u003cli\u003eDouble-check OE numbers: 1122000970, 0002020919, 0119979792 listed by X AUTOHAUX.\u003c\/li\u003e\n  \u003cli\u003eInspect photos and vehicle fitment list to confirm correct match for your Mercedes model.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This X AUTOHAUX tensioner and idler pulley assembly is intended for Mercedes-Benz owners, DIY mechanics, and independent repair shops replacing noisy or failing belt tensioners on compatible late‑1990s to mid‑2000s models. If your vehicle shows belt squeal, loose belt, or accessory performance issues, this direct-fit aftermarket set provides a durable replacement option—just verify fitment with your OE number and vehicle year\/model.\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: Which Mercedes models does this tensioner fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits many Mercedes C, E, CLK, CL, ML, S, SL and others from late 1990s to mid-2000s—check the provided fitment list and OE numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the set include both tensioner and idler pulley?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the package contains one set with the belt tensioner pulley and the idler pulley for a complete replacement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"X AUTOHAUX","offers":[{"title":"Default Title","offer_id":48083948568734,"sku":"B0CPPVQ7R5","price":65.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/x-autoHaux-front-assembly-packaging.jpg?v=1785840878","url":"https:\/\/northtrailauto.ca\/products\/x-autohaux-mercedes-benz-serpentine-belt-tensioner-idler-pulley-assembly-metal-direct-fit-set-for-c-e-clk-ml-s-models","provider":"North Trail Auto","version":"1.0","type":"link"}