Cummins 4BT (3.9L)

25 products

  • 4B/6B Cummins Exhaust Rocker Arm 3910810 image 0
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    4B/6B Cummins Exhaust Rocker Arm 3910810

    1989 - 1998 Cummins 4B/6B Series Exhaust Valve Rocker Arm OEM# 3910810
    $27.50
    $27.50
  • Oil Pressure Relief Valve 89-18 5.9L/6.7L 3936365 image 0
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    Oil Pressure Relief Valve 89-18 5.9L/6.7L 3936365

    Oil Pressure Relief Valve Cummins 4B / 6B / ISB / QSB / 6C / ISC / ISL...
    $20.00
    $20.00
  • Cylinder Head Alignment Dowel 3902343 image 0
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    Cylinder Head Alignment Dowel 3902343

    Cylinder Head Alignment Dowel Fits All B-Series Engines  2 Required Per Engine SOLD INDIVIDUALLY
    $15.00
    $15.00
  • 89-93 5.9L Dodge Cummins Harmonic Balancer 3958258 image 0
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    89-93 5.9L Dodge Cummins Harmonic Balancer 3958258

    Harmonic damper for the '89-'93 Dodge Turbo Diesel Stock Replacement.
    $125.00
    $125.00
  • 89-97 Cam Bearing Cummins 5.9L/3.9L Engines 3901306 image 0
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    89-97 Cam Bearing Cummins 5.9L/3.9L Engines 3901306

    This is a DIRECT FIT for 89-97 5.9L/3.9L Cummins blocks that have the 14mm main studs factory. Some...
    $20.00
    $20.00
  • 89-98 5.9L Cummins Cam Gear 3929028 image 0
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    89-98 5.9L Cummins Cam Gear 3929028

    6bt/4bt cam gear 
    $120.00
    $120.00
  • 4BT Crankshaft w/Gear 3908031 image 0
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    4BT Crankshaft w/Gear 3908031

    3.9L 4BT Cummins Crankshaft Assembly With Gear 3908031    
    $1,304.00
    $1,304.00
  • 3.9L 4BT Cummins Stock Valve Tappets 3931623 image 0
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    3.9L 4BT Cummins Stock Valve Tappets 3931623

    4BT Cummins Cam Tappets/Lifters. Sold as a set of 8 3931623  
    $88.00
    $88.00
  • Cam Bushing 1998 - Current Cummins Blocks 3940059 image 0
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    Cam Bushing 1998 - Current Cummins Blocks 3940059

    12V/24V/Commonrail Thick Cam Bearing/Bushing Fits 97.5+ 5.9L & 6.7L Cummins Storm & Commonrail blocks. Oem# 3940059
    $20.00
    $20.00
  • 5.9L/3.9L Cummins Diesel Rear Main Seal Housing Plate 3936904 image 0
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    5.9L/3.9L Cummins Diesel Rear Main Seal Housing Plate 3936904

    5.9L, 3.9L Cummins Diesel Rear Main Seal Housing Plate CUMMINS 3913447 CUMMINS 3921043 CUMMINS 3936260 CUMMINS 3936904
    $48.00
    $48.00
  • Cummins Crankshaft Gear 3929027 image 0
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    Cummins Crankshaft Gear 3929027

    Cummins Crankshaft Gear for BT and ISB Engines OEM # 3929027
    $123.00
    $123.00
  • P7100 Pump Gear 3931382 image 0
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    P7100 Pump Gear 3931382

    P7100 pump gear Manufacturer OEM Number CUMMINS 3915594 CUMMINS 3919638 CUMMINS 3920305 CUMMINS 3924405 CUMMINS 3929031 CUMMINS 3931382...
    $98.00
    $98.00
  • Cummins 5.9L Connecting Rods 3942581 image 0
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    Cummins 5.9L Connecting Rods 3942581

    New Cummins 5.9L Connecting Rods! Fits Cummins 6BT/4BT 1989-2002 engines. CUMMINS 3901568 CUMMINS 3901569 CUMMINS 3925232 CUMMINS 3942581...
    $108.00
    $108.00
  • Cummins 4B Valve Cover Gasket Set 3930906 image 0
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    Cummins 4B Valve Cover Gasket Set 3930906

    4BT Cummins valve cover gasket set of 4. Part# 3930906
    $14.00
    $14.00
  • Cummins 4B and 6B Front Cover Gasket 3918673 image 0
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    Cummins 4B and 6B Front Cover Gasket 3918673

    Front timing cover gasket for 4bt and 6bt engines equipped with P7100 injection pump Part# 3918673
    $18.00
    $18.00
  • Cummins Front Cover Gasket 3914385 image 0
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    Cummins Front Cover Gasket 3914385

    Front timing cover gasket for 4bt and 6bt engines equipped with VE injection pump #10 in picture only...
    $18.00
    $18.00
  • Front Crank Seal Kit with Wear Sleeve 3802820 image 0
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    Front Crank Seal Kit with Wear Sleeve 3802820

    3802820 Cummins Front Crank Oil Seal With Steel Installer and thick Replacement Wear Sleeve This kit does not use...
    $35.00
    $35.00
  • Cummins 4BT Oil Cooler 3921557 image 0
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    Cummins 4BT Oil Cooler 3921557

    Cummins 4BT Oil Cooler Part# 3921557, 3957543, 3918292, 3904320
    $103.00
    $103.00
  • Cummins B Series Rear Crank Seal, 4089342 image 0
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    Cummins B Series Rear Crank Seal, 4089342

    Cummins 4BT Rear Crank Seal Part# 4089342, 3357693, 3970548, 5259499
    $34.00
    $34.00
  • Cummins 6BT/4BT Front Crank Seal 3937111 image 0
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    Cummins 6BT/4BT Front Crank Seal 3937111

    Cummins 6BT Front Crank Seal Part# 3937111, 3935959 NO WEAR SLEEVE
    $30.00
    $30.00
  • Cummins 4BT Upper Gasket Set, 3804896 image 0
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    Cummins 4BT Upper Gasket Set, 3804896

    Cummins 4BT Upper Gasket Set Part# 3804896, 3802015, 3802016, 3802216, 3802240, 3802361
    $103.00
    $103.00
  • Cummins 4BT Lower Gasket Set, 3802375 image 0
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    Cummins 4BT Lower Gasket Set, 3802375

    Cummins 4BT Lower Gasket Kit Part# 3802375
    $161.00
    $161.00
  • Cummins 4B Head Bolt Kit image 0
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    Cummins 4B Head Bolt Kit

    Cummins 4BT Cummins Head Bolt Kit. Contains 18 pieces.
    $48.00
    $48.00 $55.00
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  • Cummins B Series Timing Housing, 3936256 image 0
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    Cummins B Series Timing Housing, 3936256

    Cummins 6B Timing Housing. Fits Bosch fuel pumps P7100 and P300. Part# 3936256, 3918180, 3920519
    $209.00
    $209.00