Application: Works on Caterpillar 3400, C15 and Cummins ISX 15 & QSX 15 with a 5.4" bore. Application : Fits For Cummins ISX, C-15 with a 5.4" Bore and Caterpillar 3400. This ring compressor is made for use on Cummins ISX, Caterpillar 3400, and C-15 5.4" Bore.
