{"product_id":"3937555-genuine-cummins-belt-tensioner","title":"3937555 - Genuine Cummins Belt Tensioner","description":"\u003cp\u003eCummins 3937555 Belt Tensioner - Genuine Cummins Automatic Drive Belt Tensioner for B\/C Series and ISB\/ISC Engines\u003c\/p\u003e\u003cp\u003eThe Cummins 3937555 is the spring-loaded automatic tensioner on the accessory\/serpentine drive. Its spring keeps constant load on the belt through a pulley on a swinging arm, taking up slack as the belt stretches and wears so it doesn't slip, squeal, or throw. Set it and the spring does the rest - no manual adjustment.\u003c\/p\u003e\u003cp\u003eFitment \u0026amp; Specifications:\u003c\/p\u003e\u003cp\u003e- Application: Cummins B Series, C Series, ISB, QSB, ISC (5.9L \/ 6.7L \/ 8.3L)\u003cbr\u003e - Type: Automatic spring-loaded accessory drive belt tensioner\u003c\/p\u003e\u003cp\u003eVerify fitment with us before ordering to ensure the correct part for your application.\u003c\/p\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":48155185479901,"sku":"WP20420","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7808\/6621\/files\/wp20420.png?v=1785724822","url":"https:\/\/wisentpartscenter.com\/products\/3937555-genuine-cummins-belt-tensioner","provider":"Wisent Parts Center","version":"1.0","type":"link"}