07 CTD ThunderRoad
12-13-2009, 06:02 PM
This is the new replacement air filter for highway use, 5.9 CTD; #53034249AA This filter is taller (looks like the 6.7 filter), has a longer service life and flows more air with the the 99% eff. required to maintain the extended warranty. If you use your Cummins off road you are required to use the original #53032700AB air filter.