The Cummins/Onan 6B engine line groups 2 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 55E6D142A | Construction/Industrial, 142 HP @ 2,100 RPM, HMRO Turbo, Front Sump, Rotary Pump | turbocharger |
| 55E6D145A | Construction/Industrial, 145 HP @ 2,200 RPM, HMRO Turbo, Front Sump, Rotary Pump | turbocharger |
| 55E6D152A | Construction/Industrial, 152 HP @ 2,500 RPM, HMFO Turbo, Rear Sump, Rotary Pump | turbocharger |
| 55E6D152B | Construction/Industrial, 152 HP @ 2500 RPM, HMFO Turbo, Front Sump, Rotary Pump | turbocharger |
| 55E6D174A | Construction/Industrial, 174 HP @ 2,200 RPM, HMRO Turbo, JWAC, Rear Sump, Rotary Pump | turbocharger |
| 55E6D177B | Construction/Industrial, 177 HP @ 2,500 RPM, HMRO Turbo, JWAC, Front Sump, Rotary Pump | turbocharger |
| 55E6D177C | Construction/Industrial, 177 HP @ 2,500 RPM, HMFO Turbo, JWAC, Front Sump, Rotary Pump | turbocharger |
| 55E6D177D | Construction/Industrial, 177 HP @ 2500 RPM, HMRO Turbo, JWAC, Front Sump, Rotary Pump | turbocharger |
| 55F1D152A | Construction/Industrial, Yard Tractor, 152 HP @ 2,500 RPM, HMRO Turbo, Front Sump, Rotary Pump | turbocharger |
| 55F7D148A | Construction/Industrial, 148 HP @ 2,200 RPM, HMRO Turbo, Front Sump, Inline Pump | turbocharger |
| 55F7D148AR | Construction/Industrial, 148 HP @ 2,200 RPM, HMRO Turbo, Rear Sump, Inline Pump | turbocharger |
| 55F7D148B | Construction/Industrial, 148 HP @ 2200 RPM, HMFO Turbo, Front Sump, Inline Pump | turbocharger |
| 55F7D148BR | Construction/Industrial, 148 HP @ 2200 RPM, HMFO Turbo, Rear Sump, Inline Pump | turbocharger |
| 55F7D148SB | Construction/Industrial, 148 HP @ 2200 RPM, HMFO Turbo, Front Sump, Inline Pump | turbocharger |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.