2017 Cummins ISX 12 Diesel ENGINE FRONT REAR BRAKE JAKE ASSEMBLY 4330249 OEM 4330250. IN GOOD CONDITION PLEASE SEE PICTURES. MATCH PICTURES AND/OR PART NUMBER IF LISTED TO MAKE SURE THIS IS THE RIGHT PART YOU NEED. ASK US IF YOU HAVE ANY QUESTIONS OR CALL YOUR LOCAL DEALER. WE STRIVE TO KEEP OUR CUSTOMERS SATISFIED.