XK8 4.2 2002-2006 (VIN range A30644 through to A48684). XF 4.2 2008-2009 (VIN range R00001 through to R47153). XJ8 3.5 / 4.2 2003-2010 (VIN range G00001 through to G50786, H00001 through to H32732). This is the LEFT BANK ("B-Bank") engine cam shaft top cover, also known as the "rocker" cover.
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