Replacement Piston Ring Set for Cummins ® ISX/QSX Applications ISX – 2pc Articulated Piston OEM Cross References: 4309442 Superseded/Alternate Numbers: M-4089154

1 x Piston Ring Set

Note: 2pc Articulated piston

Model: Cummins ISX / QSX Engine

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: 4309442
• Alternate / Superseded: M-4089154
• Interstate-McBee Reference: M-4309442

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.