Auto Water Pumps apply for: AUDI A6(4A,C4) OEM NO.:077121004A,077121004G,077121004GX More applicant info, Pls click ... the pic. Car water pump description: A water pump is a belt driven device found in any car which transfers ... the water circles against the outer wall, it presses down a drain, which sends the water into the engine block. From ... 17200PCS Car Water Pumps A0-022 for AUDI A6(4A,C4)