View 4 Photos View 0 Videos Used Cummins ISB 5.9L EGR Air Charge Elbow $54 USD Used ISB 5.9L EGR Air Charge Elbow, Type: Air Charge Elbow, Material: Aluminum ConditionUsedFits To Make(s)CumminsFits To Model(s)ISB 5.9L EGRPart Number3967478Stock Number524-12600 MLS Number11692825CategoryTurbo Parts Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 24-Valve Cummins ISB 5.9L EGR Commonrail Diesel Engine Harmonic Balancer / Dampner Pulley P# 3954927 $299.99 USD PART SPECIFICS, Price USD: $299.99, Make: 2004-2006 CUMMINS ISB 5.9L 24-VALVE COMMONRAIL DIESEL ENGINE, Model: HARMONIC BALANCER / DAMPNER PULLEY, Part#: 3954927,... Warranty ConditionUsedWill Fit Year(s)2004-2006Part Number3954927Stock Number321539 MLS Number11523588CategoryEngine Harmonic Balancers Last Updated8/7/2026 LocationRockwood, TN, US Sold ByMachinery and Truck Parts (844) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Used Cummins ISB 5.9L EGR High Pressure Fuel Rail $108 USD Used ISB 5.9L EGR High Pressure Fuel Rail, Type: fuel rail ConditionUsedFits To Make(s)CumminsFits To Model(s)ISB 5.9L EGRPart Number3957077Stock Number547-10408 MLS Number11400396CategoryManifolds Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Used Cummins ISB 5.9L EGR intake Cover $59 USD Used ISB 5.9L EGR intake Cover, Type: Intake Cover ConditionUsedPart Number3965566Stock Number519-12627 MLS Number11395725CategoryIntake Manifolds Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Used Cummins ISB 5.9L EGR Air Intake Connection $92 USD Used ISB 5.9L EGR Air Intake Connection, Type: Air Intake Connection, Material: Aluminum ConditionUsedFits To Make(s)CumminsFits To Model(s)ISB 5.9L EGRPart Number3965572Stock Number524-11900 MLS Number11291711CategoryTurbo Parts Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Used Cummins ISB 5.9L EGR Air Intake Connection $205 USD Used ISB 5.9L EGR Air Intake Connection, Type: Intake Connection ConditionUsedFits To Make(s)CumminsFits To Model(s)ISB 5.9L EGRPart Number3967876Stock Number519-12571 MLS Number11264134CategoryIntake Manifolds Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Used Cummins ISB 5.9L EGR Intake Cover/W Heater $149.99 USD Used ISB 5.9L EGR Intake Cover/W Heater, Type: Intake Cover W/Heater ConditionUsedPart Number5274662Stock Number519-12209 MLS Number10075726CategoryEngine Covers Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Used Cummins ISB 5.9L EGR Rear Inner Cover $243 USD Used ISB 5.9L EGR Rear Inner Cover, Type: Inner Rear Cover ConditionUsedPart Number3958304Stock Number507-16211 MLS Number11162886CategoryEngine Covers Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Used Cummins ISB 5.9 EGR Rear Inner Cover $243 USD Used ISB 5.9 EGR Rear Inner Cover, Type: Inner Rear Cover Quantity3ConditionUsedPart Number3958304Stock Number507-16104 MLS Number10076186CategoryEngine Covers Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Used Cummins ISB 5.9L EGR Intake Ribbon $29.99 USD Used ISB 5.9L EGR Intake Ribbon, Type: ISB Intake Ribbon ConditionUsedPart Number3965564Stock Number507-16184 MLS Number10077833CategoryEngine Covers Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2003 Cummins ISB 5.9L EGR Engine Control Module (ECM) P/N 4921776 CM850 $695 USD (GOOD USED/TESTED) Cummins ECM Part # 4921776, CM850, CPL # 8134, 2003 Model Year, EGR, ISB, 300HP @ 2500RPM ECM Serial # 37196506, Engine Serial # 60289151, ECM Code Z90009.27, Stock #... ConditionUsedCPL/ARR8134Horse Power300 HPPart Number4921776Stock NumberECM0121 MLS Number9463914CategoryEngine Control Modules (ECM) Last Updated7/30/2018 LocationOpa Locka, FL, US Sold ByCA Truck Parts Inc. (305) 688-___ SHOWNUMBERCall Seller Email Seller Save More Info