Replacement Inframe Kit for Cummins ® ISX/QSX Applications X15 – CM2350 – 150mm Cross Reference OEM Cross References: 6050INF1

What’s Included

Engine Overhaul Rebuild Kit | Cummins X15 Engine

OE Replacement # 5579308

Rebuild Kit includes:

6) M-5405828 | Kit – Piston – ISX

1) M-3678756 | Seal – O-ring

1) M-4026684 | Gasket – Oil Pan

1) M-4357177 | Valve – Pressure Relief

1) M-5406187 | Gasket Set – Upper Engine

6) M-4376168 | Kit – Cylinder Liner

1) M-5406110 | Bearing Kit – Main

1) M-4318947 | Thermostat

1) M-3684336 | Gasket – Thermostat Housing

6) MCB2882087 | Bearing – Connecting Rod

6) M-3687058 | Nozzle – Piston Cooling

4) M-4298242 | Stud – High Temp

4) M-3818824 | Nut – Hex Head

Application & Fitment

• Engine Make: Cummins
• Engine Model / Application: ISX/QSX

Confirm the original part number and engine identification before ordering. Where applicable, also verify serial-number range, production year, piston style, bearing size or other configuration notes shown in the product information.

Part Numbers & Cross References

• OEM Cross Reference: 6050INF1
• Interstate-McBee Reference: M-5579308

Need Help Confirming Fitment?

Use the engine model, serial number and original part number when checking compatibility. For kits and sets, review the complete component breakdown above before ordering because contents can vary by engine configuration.