3.9L CUMMINS 4BT

Built for durability and compact power, the Cummins 3.9L 4BT engine benefits from this range of mechanical fuel system upgrades, custom turbo kits, and performance manifolds. Whether it's for a Jeep swap, off-road rig, or marine build, these components support VE and P-pump variants with parts like governor spring kits, billet valve covers, and 4BT-specific intercoolers.

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  HD Piston Oil Squirter Cooling Jet Nozzles for 89-02 Dodge 5.9L Cummins Diesel

  Don’t reinstall the factory plastic oil squirters in your 89-02 Dodge 5.9L Cummins Diesel replace them with our HD Cummins Piston Oil Squirters. Commonly known as piston cooling nozzles, cooling jets, or oil squirters, this easy and affordable...

  MSRP: $49.95

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  Now: $39.95

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  ARP Diesel Main Stud Kit 247-5404 3.9L Diesel 4BT

  ARP Diesel Main Stud Kit 247-5404 3.9L Diesel 4BT  

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  Now: $249.12

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  Swag Performance 5.9L/6.7L Dodge Cummins Front Crankshaft Seal Installation Tool

  Swag Performance 5.9L/6.7L Dodge Cummins Front Crankshaft Seal Installation Tool 1989 – Current 5.9L, 6.7L, and 3.9L Dodge Cummins Diesel Front Crankshaft Seal Install ToolCummins # 3824498

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  Now: $139.00

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  Swag Performance 4BT Main Stud Kit* 4BT Cummins 3.9L

  Swag Performance 4BT Main Stud Kit* 4BT Cummins 3.9L 4 Cylinder  Please consult with Cummins for Engine Installation & Torque Specs *THESE ARE MAIN STUDS NOT CYLINDER HEAD STUDS! Similar to ARP 247-5404/ARP2000

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  Front Cover Crankshaft Seal&Wear Sleeve Installer Tool For Cummins 3.9L 5.9L 6.7L

  Front Cover Crankshaft Seal&Wear Sleeve Installer Tool For Cummins 3.9L 5.9L 6.7  

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  Crankshaft Wear Sleeve Installation Tool for Dodge Cummins 3.9L 5.9L & 6.7L

  Crankshaft Wear Sleeve Installation Tool for Dodge Cummins 3.9L 5.9L & 6.7L Crankshaft Wear Sleeve Installation ToolDodge Cummins 3.9L 5.9L & 6.7L

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  Colt Cams 4BT Tappet Set TAPPETS-4BT For 3.9L Cummins 4BT (set of 8)

  Colt Cams 4BT Tappet Set TAPPETS-4BT For 3.9L Cummins 4BT The Colt Cams 4BT Tappet Set is a great upgrade for the valvetrain in your 3.9L Cummins 4BT when adding a performance camshaft. Inconsistencies such as flat and even dished crowns on the tappets...

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  Now: $110.00

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