{"product_id":"caterpillar-4n-0684-pin","title":"Caterpillar 4N-0684 Pin","description":"\u003cdiv\u003e\u003cp\u003eCAT 4N-0684 Pin is a solid dowel pin from Caterpillar, designed for precise alignment of mating parts in CAT equipment. It features a 9.55 mm outer diameter and a length of 0.752 inches (approximately 19.1 mm), providing a compact locating reference for assemblies where exact positioning matters. Marketed by Cat Parts Store as a solid dowel pin, the 4N-0684 designation is consistently referenced in CAT catalogs and aftermarket listings as a flywheel dowel pin. Several supplier references identify it specifically for Caterpillar 3400-series flywheel applications, underscoring its role in aligning the flywheel with the crank hub during assembly and reassembly. As a genuine Cat part, 4N-0684 embodies the standard dimensions used for dowel pins in drive and rotational assemblies, offering a straightforward, repeatable locating feature during service work. This pin is suitable for repairs or rebuilds where a standard dowel pin of these dimensions is required to maintain correct alignment and timing between components, reducing the risk of misalignment that could affect performance. \u003c\/p\u003e\u003c\/div\u003e","brand":"Caterpillar","offers":[{"title":"New Surplus No Box","offer_id":51677848830254,"sku":null,"price":128.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_b722edfd-f9f9-4bf4-a624-841270d20585.jpg?v=1769568376","url":"https:\/\/plgautomation.com\/products\/caterpillar-4n-0684-pin","provider":"PLG Automation ","version":"1.0","type":"link"}