Ritchmen is embracing the age of information technology and believes that “Knowledge is Power”. Therefore we have invested in a full range of Cummins parts catalogs and service manuals. Our vast Cummin’s library spans from the smaller Cummins B & C series, to the Heavy Duty NT855, L10 & M11 series and the High-Horsepowered KTA19 ; KTA38 and KTA50 engines. We have recently extended our catalog range to encompass the latest Quantum Series of engines, ie: QSL9, QSM11, QSX15, QSK23, QST30, QSK38, QSK45, QSK50, QSK60 and QSV78 & 81series of engines.