{"product_id":"mcs978343","title":"Jims Breather Reamer Tool – 1936–1999 Big Twin","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eUsed to repair the (often damaged by OEM plastic breather valves) breather hole. No need to disassemble the cases. This tool will ream the hole to +.030\" so a replacement steel +.030\" JIMS or S\u0026amp;S breather can be installed. Note: After the reaming process all aluminum reaming chips must be removed. Also; when working on early 36-69 cases; before reaming check if wall thickness in the breather hole is thick enough so the reamer will not break through. Note: See 978429 for replacement reamer only.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e36-99 Big Twin (Excl. Twin Cam) (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Jims\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e TOOLS \u0026gt; TOOLS ENGINE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e EA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 978343\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Numbers\u003c\/h2\u003e\n\u003cp\u003eMCS Part Number: 978343\u003cbr\u003eManufacturer Part Number: 1706\u003c\/p\u003e","brand":"JIMS","offers":[{"title":"Default Title","offer_id":57379213476227,"sku":"MCS978343","price":1350.94,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/978343k.jpg?v=1785975306","url":"https:\/\/hogparts.co.uk\/products\/mcs978343","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}