I'm wondering how much does it cost to install two transmission cooler lines. Yesterday, I picked my my 2007 MDX from the Acura dealership and paid in total of 626.12 dollars to replace two lines that were leaking. (Parts: 25212-RDJ-007 and 25211-RYE-016) The total of the parts were $36.48 and the labor itself was $579.80. Service department said it is because it took them 4 hours to complete the job. Does that sound right?