{"product_id":"eastern-a-18221-57b-upper-valve-collar-set-for-harley-davidson-xl-1957-1967","title":"Eastern A-18221-57B Upper Valve Collar Set for Harley XL","description":"\u003cdiv\u003e\n\u003ch1\u003eEastern A-18221-57B Upper Valve Collar Set for Harley XL\u003c\/h1\u003e\n\u003cp\u003eA four-piece, upper valve collar set designed for Harley-Davidson XL engines (1957–1966). Each collar is precision-machined and heat-treated, then finished in a durable black oxide to withstand routine valve service in vintage engines.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eIncludes four collars for comprehensive replacement\u003c\/li\u003e \u003cli\u003eInner diameter: 0.813 inches\u003c\/li\u003e \u003cli\u003eOuter diameter (first step): 1.05 inches\u003c\/li\u003e \u003cli\u003eFinish: black oxide; construction aligned with OEM-quality standards\u003c\/li\u003e \u003cli\u003eMade in the USA\u003c\/li\u003e \u003cli\u003eOEM cross reference: 18221-57B\u003c\/li\u003e \u003cli\u003eOEM part number: A-18221-57B\u003c\/li\u003e \u003cli\u003eCompatible with related valve spring tools and kits for complete valve service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe set is engineered to fit Harley-Davidson XL models from 1957 through 1966, ensuring proper valve operation and reliable engine performance. Its durable construction supports long-term use in restoration projects or maintenance intervals, helping keep vintage Sportsters running smoothly.\u003c\/p\u003eUpper valve collar set is precision machined and heat treated. Has a black oxide finish.\n\u003cp\u003eThe Eastern A-18221-57B Upper Valve Collar Set is a high-quality replacement component designed specifically for Harley Davidson XL models from 1957 to 1966. Crafted in the USA, this set includes four precision-engineered collars with an outer diameter of approximately 1.05 inches and an inner diameter of.813 inches, ensuring a secure fit on your engine's valve assembly. These collars are essential for maintaining proper valve operation and ensuring optimal engine performance. The set's durable construction guarantees longevity and reliable performance, making it an excellent choice for restoration or routine maintenance of vintage Harley Davidson motorcycles. Each collar is crafted to meet OEM specifications, providing a seamless fit and easy installation for mechanics and enthusiasts alike. The set is compatible with OEM part number 18221-57B and can be used with related valve spring tools and kits for comprehensive valve service. Whether restoring a classic bike or performing routine repairs, this valve collar set helps ensure your Harley Davidson engine runs smoothly and reliably. Trust Eastern’s quality craftsmanship to keep your vintage motorcycle performing at its best.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eInner Diameter:.813 inches\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eOuter Diameter (first step): 1.05 inches\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSet includes four collars for comprehensive replacement\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eMade in the USA with OEM-quality standards\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompatible with Harley Davidson XL models from 1957 to 1966\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eOEM Cross Reference: 18221-57B\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIncludes accessory items for complete valve service\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson XL 1957\u003cbr\u003e\nHarley Davidson XL 1958\u003cbr\u003e\nHarley Davidson XL 1959\u003cbr\u003e\nHarley Davidson XL 1960\u003cbr\u003e\nHarley Davidson XL 1961\u003cbr\u003e\nHarley Davidson XL 1962\u003cbr\u003e\nHarley Davidson XL 1963\u003cbr\u003e\nHarley Davidson XL 1964\u003cbr\u003e\nHarley Davidson XL 1965\u003cbr\u003e\nHarley Davidson XL 1966\u003cbr\u003e\nHarley Davidson XL 1967\u003cbr\u003e\nHarley Davidson XL 1968\u003cbr\u003e\nHarley Davidson XL 1969\u003cbr\u003e\nHarley Davidson XL 1970\u003cbr\u003e\nHarley Davidson XL 1971\u003cbr\u003e\nHarley Davidson XL 1972\u003cbr\u003e\nHarley Davidson XL 1973\u003cbr\u003e\nHarley Davidson XL 1974\u003cbr\u003e\nHarley Davidson XL 1975\u003cbr\u003e\nHarley Davidson XL 1976\u003cbr\u003e\nHarley Davidson XL 1977\u003cbr\u003e\nHarley Davidson XL 1978\u003cbr\u003e\nHarley Davidson XL 1979\u003cbr\u003e\nHarley Davidson XL 1980\u003cbr\u003e\nHarley Davidson XL 1981\u003cbr\u003e\nHarley Davidson XL 1982\u003cbr\u003e\nHarley Davidson XL 1983\u003cbr\u003e\nHarley Davidson XL 1984\u003c\/div\u003e","brand":"Eastern","offers":[{"title":"Default Title","offer_id":44642940256298,"sku":"11-0809","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-0809a_fdb5a750-3d2e-4536-b1f3-ca0de400c9ea.jpg?v=1785530192","url":"https:\/\/atticusgoods.com\/products\/eastern-a-18221-57b-upper-valve-collar-set-for-harley-davidson-xl-1957-1967","provider":"Atticus Goods","version":"1.0","type":"link"}