Piston for CUMMINS 4B3.9Reference3804981Engine applicationsCUMMINS 4B3.9 · CUMMINS QSB4.5bore mm102retainer specification40-1.7-RAsupplier ring thickness reference2.38R 2.38 4Other references on this record380498038049813804982393358139335823932514PistonBrowse this categoryBrowse this brand · CUMMINSProduct page · 3932514CUMMINS