{"product_id":"yzusgomumu-serpentine-drive-belt-tensioner-pulley-kit-for-jeep-wrangler-3-6l-2012-2018-tensioner-2-idlers-serpentine-belt","title":"YzusGomumu Serpentine Drive Belt Tensioner Pulley Kit for Jeep Wrangler 3.6L (2012-2018) — tensioner, 2 idlers \u0026 serpentine belt","description":"\u003cp\u003e\u003cstrong\u003eThe YzusGomumu Serpentine Drive Belt Tensioner Pulley Kit is a complete replacement assembly that restores proper belt tension and smooth accessory drive operation on compatible Jeep Wrangler 3.6L engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Wrangler is showing belt noise, squeal, or accessory drive issues, a worn tensioner, idler pulley, or serpentine belt is often the cause. This kit bundles a heavy-duty drive belt tensioner, two idler pulleys and a replacement serpentine belt engineered to meet factory fitment and improve reliability under vibration and heat. Components use high-strength alloy steel and aluminum with heat-treated surfaces to maintain dimensional accuracy and resist premature wear.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit improve drive-belt performance?\u003c\/h3\u003e\n\u003cp\u003eThe tensioner and idler pulleys keep the serpentine belt aligned and under correct tension, reducing slippage and uneven wear. That leads to steadier power transfer to alternator, water pump and other accessories while lowering the chance of sudden belt failure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains consistent belt tension across operating ranges.\u003c\/li\u003e\n  \u003cli\u003eReduces belt noise and vibration during idling and acceleration.\u003c\/li\u003e\n  \u003cli\u003eProtects accessories by preventing excessive backlash and slip.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my Jeep Wrangler 3.6L?\u003c\/h3\u003e\n\u003cp\u003eThis kit is intended for Jeep Wrangler models equipped with the 3.6L engine: model years 2012–2017 and 2018 JK with matching engine configuration. Verify the OE numbers against your existing parts to ensure exact compatibility before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible model years: 2012–2017 Jeep Wrangler 3.6L and 2018 Jeep Wrangler JK 3.6L.\u003c\/li\u003e\n  \u003cli\u003eReference OE numbers: 90K-39415, 4627038AA-KIT, 4627038AAKIT.\u003c\/li\u003e\n  \u003cli\u003eAlways cross-check with your vehicle’s part numbers prior to purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the package and what are the materials?\u003c\/h3\u003e\n\u003cp\u003eThe kit includes one drive belt tensioner, two idler pulleys and one serpentine belt—everything required to renew the belt drive path in one service. Components are manufactured from high-strength alloy steel and aluminum with advanced surface and heat treatments for durability under repetitive loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage contents: 1 tensioner, 2 idler pulleys, 1 serpentine belt.\u003c\/li\u003e\n  \u003cli\u003eMaterials: alloy steel and aluminum alloy with heat-treated surfaces.\u003c\/li\u003e\n  \u003cli\u003eDesigned to withstand engine vibration, torsion and thermal cycling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I expect after replacing it?\u003c\/h3\u003e\n\u003cp\u003eInstallation is comparable to most accessory drive service procedures; basic hand tools and a belt routing diagram are usually sufficient. After replacing worn components you should notice quieter operation, more consistent accessory performance, and extended life for the belt and pulleys.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical install: moderate mechanical skill, hand tools required.\u003c\/li\u003e\n  \u003cli\u003eExpect reduced belt squeal and improved accessory response.\u003c\/li\u003e\n  \u003cli\u003eCheck belt alignment and pulley spin after installation for smooth operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This YzusGomumu kit is aimed at Jeep Wrangler owners and independent mechanics who want a complete, high-strength replacement for worn serpentine drive components on 3.6L engines. It suits anyone restoring accessory-drive reliability—DIYers replacing aging parts, technicians performing routine maintenance, and fleet operators seeking consistent performance across vehicles. Always confirm fitment with your vehicle’s part numbers before ordering.\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 this kit include the belt and all pulleys?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The package contains 1 drive belt tensioner, 2 idler pulleys and 1 serpentine drive belt.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which Jeep model years does this kit fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for Jeep Wrangler 3.6L models from 2012–2017 and 2018 JK 3.6L—verify OE numbers before buying.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YzusGomumu","offers":[{"title":"Default Title","offer_id":48080845373598,"sku":"B0F7LGF4RG","price":94.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/yzusgomumu-front-packaging-assembly.jpg?v=1785790110","url":"https:\/\/northtrailauto.ca\/products\/yzusgomumu-serpentine-drive-belt-tensioner-pulley-kit-for-jeep-wrangler-3-6l-2012-2018-tensioner-2-idlers-serpentine-belt","provider":"North Trail Auto","version":"1.0","type":"link"}