{"product_id":"a-premium-idler-pulley-for-gm-vehicles-90mm-steel-17mm-bore-sealed-bearing","title":"A-Premium Idler Pulley for GM Vehicles — 90mm Steel, 17mm Bore, Sealed Bearing","description":"\u003cp\u003e\u003cstrong\u003eThe A-Premium belt idler pulley is a precision-engineered steel replacement pulley that restores proper belt routing and tension on many Chevrolet, GMC, Cadillac and Buick V8\/V6 applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis single-piece idler pulley is built to OE-style dimensions so it fits directly where the factory unit sits and helps maintain smooth accessory drive operation. It’s designed to match the outside diameter, bore and width specifications used on dozens of trucks and SUVs, offering a durable steel construction and a sealed bearing intended for quiet rotation under load.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will this idler pulley fit?\u003c\/h3\u003e\n\u003cp\u003eThis pulley is made for a wide range of GM and related vehicles — from light trucks and full-size SUVs to some commercial chassis. Fitment covers numerous Silverado, Sierra, Tahoe, Suburban, Avalanche, Yukon and Denali model families as well as compatible Isuzu, Hummer and Workhorse platforms.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChevrolet: Silverado, Avalanche, Tahoe, Suburban, Trailblazer, Express, SSR\u003c\/li\u003e\n  \u003cli\u003eGMC: Sierra, Yukon, Envoy, Savana, Topkick chassis\u003c\/li\u003e\n  \u003cli\u003eCadillac \u0026amp; Buick: Escalade, Rainier; select Saab\/Isuzu\/Hummer models\u003c\/li\u003e\n  \u003cli\u003eWorkhorse and commercial chassis fitment listed for medium-duty applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the pulley dimensions and materials affect performance?\u003c\/h3\u003e\n\u003cp\u003eThe pulley’s outside diameter (90 mm), 17 mm bearing bore and 31 mm width match the original equipment envelope to preserve belt alignment. Steel construction offers strength against edge wear while the sealed bearing helps prevent contamination and reduces noise.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOutside Diameter: 90 mm for correct belt wrap\u003c\/li\u003e\n  \u003cli\u003eBore: 17 mm to fit factory mounting studs or shafts\u003c\/li\u003e\n  \u003cli\u003eWidth: 31 mm to support proper belt seating\u003c\/li\u003e\n  \u003cli\u003eMaterial: steel body with sealed bearing for durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill installing this pulley restore belt tension and reduce noise?\u003c\/h3\u003e\n\u003cp\u003eReplacing a worn idler pulley with the A-Premium unit restores the intended pulley geometry so the drive belt tracks correctly and tension is maintained. A well-mounted, smooth-rotating pulley reduces slippage and squeal caused by worn bearings or misaligned surfaces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOE-style bearing for smooth, quiet rotation\u003c\/li\u003e\n  \u003cli\u003eSteel face resists wear from belt contact\u003c\/li\u003e\n  \u003cli\u003eMatches factory reference numbers for correct replacement\u003c\/li\u003e\n  \u003cli\u003eHelps reduce common belt noise and premature belt wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and part references does A-Premium provide?\u003c\/h3\u003e\n\u003cp\u003eA-Premium backs this idler pulley with a one-year unlimited-mileage guarantee, reflecting confidence in fit and construction. Reference numbers included with the part help confirm compatibility before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-year unlimited-mileage limited warranty\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 12555609, 12580771, 12669569, 36299\u003c\/li\u003e\n  \u003cli\u003eSold as a single pulley quantity for direct replacement\u003c\/li\u003e\n  \u003cli\u003ePackaged for easy identification and installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The A-Premium belt idler pulley is aimed at DIY mechanics, independent repair shops and fleet service technicians looking for a cost-effective, OE-dimension replacement for GM and compatible vehicles. Choose this pulley if you need a reliable steel-bodied idler that matches factory sizing, helps silence belt drive noise and carries a straightforward one-year warranty.\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: Is this pulley compatible with my Silverado 1500?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — this A-Premium idler pulley matches OE dimensions for many Silverado 1500 model years; verify with your VIN or part reference numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the pulley include a bearing or is it separate?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The unit ships as a complete pulley with a sealed bearing installed, ready for direct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48085021458590,"sku":"B0F61SQYVR","price":37.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-front-pulley-view.jpg?v=1785866891","url":"https:\/\/northtrailauto.ca\/products\/a-premium-idler-pulley-for-gm-vehicles-90mm-steel-17mm-bore-sealed-bearing","provider":"North Trail Auto","version":"1.0","type":"link"}