{"product_id":"e-cowlboy-mainshaft-sprocket-wrench-for-harley-big-twins-1936-2006-1-7-8-inch-nut","title":"E-cowlboy Mainshaft Sprocket Wrench for Harley Big Twins 1936-2006 – 1 7\/8 inch Nut","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe E-cowlboy Mainshaft Sprocket Wrench is a purpose-built tool designed to support Harley-Davidson maintenance on classic and select modern Big Twin engines. When you approach the 1 7\/8 inch nut that locks the transmission pulley in position, this wrench offers a controlled, straightforward approach that can help you work with confidence. It’s built to feel dependable in your hand and to perform reliably through multiple maintenance sessions, provided you follow proper procedure.\u003c\/p\u003e\u003cp\u003eWith a focus on practical usability, this tool blends thoughtful design with robust materials to help you handle pulley, belt, and sprocket changes more smoothly. It’s not a guarantee, but it presents a solid option for those who value a precise, repeatable connection when removing or installing a critical nut that holds the trans pulley.\u003c\/p\u003e\u003ch3\u003eCompatibility at a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits 1 7\/8 inch nut on Harley front transmission pulleys\u003c\/li\u003e\n\u003cli\u003eCompatible with 1936–2006 Big Twins\u003c\/li\u003e\n\u003cli\u003eAlso suitable for 1999–2006 Twin Cam engines, excluding the 2006 Dyna\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign and build\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMade from high-quality steel with a rust-resistant black oxide finish for durability in workshop conditions\u003c\/li\u003e\n\u003cli\u003eBack of the tool features a 1\/2 drive and a threaded bushing; overall depth is 5.5 inches, balancing leverage with reach\u003c\/li\u003e\n\u003cli\u003eEngineered to remove and install the 1 7\/8 inch nut that locks the trans pulley in position, enabling quicker belt, pulley, or sprocket changes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePractical use and tips\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUse with a 1\/2 inch ratchet or breaker bar; avoid impact guns to maintain tool longevity\u003c\/li\u003e\n\u003cli\u003eBefore purchasing, confirm your engine model against the compatibility list\u003c\/li\u003e\n\u003cli\u003eAs part of the maintenance workflow, consider inspecting or replacing the large output shaft behind the pulley, the shifter, and the main gear seal to help prevent future rework\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe tool’s rugged construction and black oxide finish help it resist rust in busy garages, supporting reliable performance across maintenance sessions. Whether you’re performing routine belt or pulley work or tackling a larger transmission service, this wrench is designed to support careful, methodical maintenance with an emphasis on control and repeatability—without promising outcomes, but highlighting practical possibilities.\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: What Harley models does this wrench fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits 1936–2006 Big Twins and 1999–2006 Twin Cam, excluding the 2006 Dyna.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this tool suitable for impact guns?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not recommended for impact guns; use with a 1\/2 inch ratchet or breaker bar.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"E-cowlboy","offers":[{"title":"Default Title","offer_id":42466120826965,"sku":"B08GSCZSY9","price":48.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ecowlboy-mainshaft-sprocket-wrench-178-nut-front-view.jpg?v=1778039053","url":"https:\/\/plentytorque.co.uk\/products\/e-cowlboy-mainshaft-sprocket-wrench-for-harley-big-twins-1936-2006-1-7-8-inch-nut","provider":"PlentyTorque","version":"1.0","type":"link"}