Bush Connecting rod 4891178 Parts Number 4891178 Parts Name Bush Connecting rod Brand Cummins Genuine Parts Cummins Models Cummins/DCEC Cummins B serial Tags: 4B, 6B, Cummins, DCEC, Genuine Parts, QSB| Related Posts Piston 3017348 Camshaft C3929039 Oil Pan Gasket 3959052 Piston Ring Set 4295801 Piston Pin 68445