Brand New OEM Cummins Injector 5263308.

No need to return core ..

Cross reference no’s

5263308PX

5263308RX

5263308NX

3973060NX

4939061NX

4940170NX

4940170RX

3965721

3973060

4939061

4940170

0986435554

0986435522

0445120236

Fast shipping

Free shipping

Best quality