{"product_id":"mcs519922","title":"S\u0026S Billet Oil Pump. 36-69 Style – 1936–1969 Big Twin","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eFully CNC machined to maintain close tolerance and strict quality control. Requires a 73-77 breather gear. Only this 36-69 style pump offers an adjustable primary chain oiling system; but is not equipped with a rear chain oiling provision. Offers several options for oil line placement. All S\u0026amp;S billet pumps come complete with everything you need to replace the stock pump and include mounting instructions. Machined with an oil pressure relief bleed off passageway \u0026amp; relieves pressure build up on top of the valve to maintain consistent oil pressure. Oil pressure regulation bypass routes excess oil directly to the supply side of the pump \u0026amp; reduces the amount of oil returned to the tank; reducing foaming and cavitation. Note: Requires 73-77 breather gear. Note: 36-69 engines used with S\u0026amp;S pinion shaft and drive shaft gears will speed-up oil pump by 25%; identical to 73-up models. S\u0026amp;S pumps for 1936–’67 engines used with the S\u0026amp;S oil pump drive gears deliver 33% more oil than the original cast iron pumpNote: There may be more differences in Harley-Davidson crankcases than you might think. Plugging or drilling a hole is sometimes necessary. S\u0026amp;S offers a drill jig as MCS 518150. This is a special tool that is mounted on the crankcase and used as a guide to help you drill holes correctly.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e36-69 Big Twin (NU)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Motor parts \u0026gt; Oil pumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 519922\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003eMCS Part Number: 519922\u003cbr\u003eManufacturer Part Number: 31-6200\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341721137472,"sku":"MCS519922","price":365.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/519922k.jpg?v=1776035809","url":"https:\/\/hogparts.co.uk\/products\/mcs519922","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}