Description Inlet adapter pipe, 15-1/2" overall length. Tractors: 3000 (except 3500), 4200 when retrofitting with C5NN5230AR or C7NN5230JM. This item is a suitable alternative for the following: D0NN5B255D, FO5AMFLR, FO5ALONG, FO5A, FO-5ALONG, FO-5A, DONN5B255D, C3NN5255B