Parts for Cummins 4BT 3.9 and 6BT 5.9 Engines

125 products

Showing 1 - 48 of 125 products

Cummins 4BT/6BT Parts

We carry a wide selection of parts including alternators, starters, hoses, and fans for Cummins 4BT 3.9 and 6BT 5.9 diesel engines.

If you need any help finding a part, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will promptly assist you.

Showing 1 - 48 of 125 products
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Cummins 3939258 Cover Plate GasketDiesel Parts Direct logo
CUMMINS Cummins 3939258 Cover Plate Gasket
From $3.17
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Cummins 3901774 Flywheel Ring GearCummins 3901774 Flywheel Ring Gear - view 2
CUMMINS Cummins 3901774 Flywheel Ring Gear
From $62.59 $71.12
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Cummins 5264569 Oil Drain Gasket For ISC8.3 And QSC8.3 Diesel EnginesDiesel Parts Direct logo
CUMMINS Cummins 5264569 Oil Drain Gasket For ISC8.3 And QSC8.3 Diesel Engines
From $6.45
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Cummins 3930906 Gasket,Valve Cover For Diesel EnginesDiesel Parts Direct logo
CUMMINS Cummins 3930906 Gasket,Valve Cover For B Series And QSB Diesel Engines
From $4.82
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Cummins 3921961 Exhaust Outlet Connection GasketCummins 3921961 Exhaust Outlet Connection Gasket - view 2
CUMMINS Cummins 3921961 Exhaust Outlet Connection Gasket
From $19.18 $21.79
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Cummins 3923331 Gasket,Thm Housing Cover For Diesel EnginesDiesel Parts Direct logo
CUMMINS Cummins 3923331 Gasket,Thm Housing Cover For B Series Diesel Engines
From $5.36
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3906694 Cummins Rectangular Ring Seal3906694 Cummins Rectangular Ring Seal - view 2
CUMMINS 3906694 Cummins Rectangular Ring Seal
From $1.02
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Cummins 3901049 Oil Pan For 4BT Diesel EnginesCummins 3901049 Oil Pan For 4BT Diesel Engines - view 2
CUMMINS Cummins 3901049 Oil Pan For 4BT Diesel Engines
From $164.92 $187.41
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Cummins 3935449 Isolator,Noise For Diesel EnginesCummins 3935449 Isolator,Noise For Diesel Engines - view 2
CUMMINS Cummins 3935449 Isolator,Noise For B Series, ISB, And QSB Diesel Engines
From $1.54
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Cummins 5292738 ThermostatCummins 5292738 Thermostat - view 2
CUMMINS Cummins 5292738 Thermostat
From $27.83 $31.62
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DS-3903380 Return Line Gasket For Cummins EnginesDS-3903380 Return Line Gasket For Cummins Engines - view 2
CUMMINS DS-3903380 Return Line Gasket For Cummins Engines
$1.91
In Stock
Alternator illustration – not the actual partDiesel Parts Direct logo
CUMMINS Cummins 4003445 Alternator
From $247.19 $280.90
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Cummins 3944593 Exhaust Manifold Bolt For Isb, Isc, And 6B5.9 EnginesCummins 3944593 Exhaust Manifold Bolt For Isb, Isc, And 6B5.9 Engines - view 2
CUMMINS Cummins 3944593 Exhaust Manifold Bolt For ISB, ISC, And 6B5.9 Engines
From $3.56
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Cummins 3906695 Seal,Rectangular Ring For Diesel EnginesCummins 3906695 Seal,Rectangular Ring For Diesel Engines - view 2
CUMMINS Cummins 3906695 Seal,Rectangular Ring For B Series Diesel Engines
From $0.37
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DS-3972071 Thermostat For Cummins 6BTA5.9-G3, B4.5, And B5.9-M220 Diesel EnginesDS-3972071 Thermostat For Cummins 6BTA5.9-G3, B4.5, And B5.9-M220 Diesel Engines - view 2
CUMMINS DS-3972071 Thermostat For Cummins 6BTA5.9-G3, B4.5, And B5.9-M220 Diesel Engines
$30.61 $34.78
In Stock
Cummins 3559070 Air Compressor Support for B Series Diesel EnginesCummins 3559070 Air Compressor Support for B Series Diesel Engines - view 2
CUMMINS Cummins 3559070 Air Compressor Support for B Series Diesel Engines
From $209.46
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Cummins 3283767 Push Rod Cover Gasket For Diesel EnginesDiesel Parts Direct logo
CUMMINS Cummins 3283767 Push Rod Cover Gasket For B Series And ISB Diesel Engines
From $11.61
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Cummins 3818823 Turbocharger Stud For Diesel EnginesCummins 3818823 Turbocharger Stud For Diesel Engines - view 2
CUMMINS Cummins 3818823 Turbocharger Stud For B Series And C Series Diesel Engines
From $8.13
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Cummins 3918188 Sealing WasherCummins 3918188 Sealing Washer - view 2
CUMMINS Cummins 3918188 Sealing Washer
From $1.81
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Cummins 3818824 Turbo Mounting Stud NutCummins 3818824 Turbo Mounting Stud Nut - view 2
CUMMINS Cummins 3818824 Turbo Mounting Stud Nut
From $2.53
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Cummins 3519807 Turbocharger Oil Drain Gasket For 6B Diesel EnginesCummins 3519807 Turbocharger Oil Drain Gasket For 6B Diesel Engines - view 2
CUMMINS Cummins 3519807 Turbocharger Oil Drain Gasket For 6B Diesel Engines
From $1.33
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Cummins 3934085 Turbocharger Oil Drain Connection For ISB EnginesDiesel Parts Direct logo
CUMMINS Cummins 3934085 Turbocharger Oil Drain Connection For ISB Engines
$145.46 $165.29
Ships in 1-2 days
Cummins 3917780 Front Gear Cover Gasket For Diesel EnginesDiesel Parts Direct logo
CUMMINS Cummins 3917780 Front Gear Cover Gasket For B Series And ISB Diesel Engines
From $36.07 $40.99
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Cummins 3906697 Seal,Rectangular Ring For Diesel EnginesCummins 3906697 Seal,Rectangular Ring For Diesel Engines - view 2
CUMMINS Cummins 3906697 Seal,Rectangular Ring For B Series And ISB Diesel Engines
From $1.10
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Cummins 3866019 Molded Hose For ISB, ISC, And QSC Diesel EnginesCummins 3866019 Molded Hose For ISB, ISC, And QSC Diesel Engines - view 2
CUMMINS Cummins 3866019 Molded Hose For ISB, ISC, And QSC Diesel Engines
$52.05 $59.15
Ships in 4-5 days
Cummins 3963988 Sealing WasherCummins 3963988 Sealing Washer - view 2
CUMMINS Cummins 3963988 Sealing Washer
From $2.61
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Cummins 3909356 Rectangular Ring Seal For Diesel EnginesCummins 3909356 Rectangular Ring Seal For Diesel Engines - view 2
CUMMINS Cummins 3909356 Rectangular Ring Seal For B Series And QSB Diesel Engines
From $0.77
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CUMMINS Cummins 3905084 Hose,Flexible For B Series And C Series Diesel Engines
$151.23 $171.85
Ships in 4-5 days
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CUMMINS Cummins 3945252 Mounting Spacer
From $5.44
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Cummins 3910739 Fan Support Ball Bearing For Diesel EnginesCummins 3910739 Fan Support Ball Bearing For Diesel Engines - view 2
CUMMINS Cummins 3910739 Fan Support Ball Bearing For B Series Diesel Engines
From $116.45 $132.33
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Gasket illustration – not the actual partDiesel Parts Direct logo
CUMMINS Cummins 3910343 Heat Exchanger Gasket
$22.43 $25.49
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CUMMINS Cummins 3906698 Seal,Rectangular Ring For B Series And ISB Diesel Engines
From $1.87
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Cummins 4991240 Idler Pulley For Isb, Qsb, Isc, And QSC Diesel EnginesCummins 4991240 Idler Pulley For Isb, Qsb, Isc, And QSC Diesel Engines - view 2
CUMMINS Cummins 4991240 Idler Pulley For ISB, QSB, ISC, And QSC Diesel Engines
$280.85 $319.15
Ships in 4-5 days
Cummins 4024809 Fuel Shutoff Solenoid Kit For Diesel EnginesCummins 4024809 Fuel Shutoff Solenoid Kit For Diesel Engines - view 2
CUMMINS Cummins 4024809 Fuel Shutoff Solenoid Kit For B Series Diesel Engines
From $33.45 $38.01
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Gasket illustration – not the actual partDiesel Parts Direct logo
CUMMINS Cummins 3938156 Gear Housing Gasket For B Series And ISB Diesel Engines
From $22.74 $25.84
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CUMMINS Cummins 3924147 Threaded Plug
From $8.94
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Cummins 3914385 Gear Cover Gasket For Diesel EnginesDiesel Parts Direct logo
CUMMINS Cummins 3914385 Gear Cover Gasket For B Series, ISB, And QSB Diesel Engines
From $20.83 $23.67
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Cummins 3912473 Seal,O Ring For Diesel EnginesCummins 3912473 Seal,O Ring For Diesel Engines - view 2
CUMMINS Cummins 3912473 Seal,O Ring For B Series, C Series, And QSB Diesel Engines
From $2.24
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Cummins 3910824 Seal,O Ring For Diesel EnginesCummins 3910824 Seal,O Ring For Diesel Engines - view 2
CUMMINS Cummins 3910824 Seal,O Ring For B Series And C Series Diesel Engines
From $0.29
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Cummins 3349230 Vibration Isolator For ISB And QSB Diesel EnginesCummins 3349230 Vibration Isolator For ISB And QSB Diesel Engines - view 2
CUMMINS Cummins 3349230 Vibration Isolator For ISB And QSB Diesel Engines
$436.57 $496.10
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Gasket illustration – not the actual partDiesel Parts Direct logo
CUMMINS Cummins 3284623 Push Rod Cover Gasket For ISB Diesel Engines
From $14.96
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CUMMINS DS-4851 Flywheel Ring Gear For Cummins Engines
$125.64 $142.77
Ships in 1-2 days
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CUMMINS Cummins 63549 Plain Hose For ISB Diesel Engines
$34.35 $39.03
Ships in 4-5 days
Cummins 3942915 Filter Head Gasket For Diesel EnginesCummins 3942915 Filter Head Gasket For Diesel Engines - view 2
CUMMINS Cummins 3942915 Filter Head Gasket For B Series And ISB Diesel Engines
From $10.13
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CUMMINS Cummins 3910993 Exhaust Outlet Tube
$259.25 $294.60
Ships in 4-5 days
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CUMMINS Cummins 3910992 Exhaust Outlet Connection
$305.46 $347.11
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CUMMINS Cummins 3907022 Filler Cap For ISB And QSB Diesel Engines
$60.63 $68.90
Ships in 1-2 days
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CUMMINS Cummins 3905427 Flywheel Ring Gear
From $224.60 $255.23
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