Main item 4935790 air transfer pipe can be substituted by 3918800 and 3918685, made for Cummins ISBE and QSB5.9 / 6B5.9 engines. Optimized inner?wall geometry streamlines intake air movement and avoids turbulent flow. Robust casting material resists vibration?induced cracking. It restores normal air delivery if your old transfer pipe develops cracks or loose joints.
