Genuine Cummins 5312664 Aftercooler O-Ring Kit Genuine Cummins 5312664 Aftercooler O-Ring Kit QSC Cummins aftercooler O-ring kit. Early aftercoolers use 3 O-Rings, later use 4. Kit includes 4 O-Rings. Does not include small tube O-rings, only aftercooler core. MSRP: Was: Now: $563.79 Add to Cart
