Cooper S disc brake water shields are easily damaged and hence frequently missing altogether. A complete kit consists of six different components: upper and lower shields plus mounting tabs for each side. Complete set is 21A1271, 21A1272, 21A1273, 21A1274, BTA1208 & BTA1209.
For 8.4 brakes, use same tabs and 21A2613, -14. -17, and -18. See also HMP441032 and -33.