Home / Products tagged “5.9 Cummins”5.9 Cummins Showing all 1 result Default sortingSort by popularitySort by average ratingSort by latestSort by price: low to highSort by price: high to low Sale! Smarty MM3 Tuner for 5.9 & 6.7 Cummins $850.00 $690.00 Add to cart