DPA Pump Top Cover Only Kit, Fits CAV Lucas Go to amazon.com Related posts The 10 best injection pump repair for 2022 FeatureExtra o-ring in case you lose oneHigh Quality Seal DescriptionKit needed to replace the top cover seal and gasket on Lucas DPA Pumps, also know as CAV DPA. This kit includes the cover gasket, 5 o-rings, and 2 Nut washers.