Cummins QSB 5.9 Parts for Canada - Piston Kits Section Loading... 1 Cummins Piston Kit for ISB5.9 and QSB5.9 4089950 For engines with the following CPL#: 429, 2998, 8123, 8134, 8135, 8213, 8228, 8416, 8464, 8732 Price: $ 166.06 Qty: ^ Pictures In Stock Add to Cart