This is the OEM version, not the cheap aftermarket version.  There is a difference 

SWIVEL REPAIR KIT FOR LAND ROVER DEFENDER UP TO KA930455 - SWIVEL HOUSING SEALS, BEARINGS, PINS AND GASKETS

This is one of the most important service items on your Land Rover that is quite often neglected. 

2 kits for Left and right front swivel balls

Must check the Last 8 of your VIN# for this kit.  Fits up to Last 8 of KA930455

$69 Shipping