Parts for Cummins 4BT 3.9 and 6BT 5.9 Engines

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.

116936

MALE ADAPTER ELBOW - ISB / KTA19 / QSK19

Genuine Cummins Part

$53.67

Qty:

176743

ELBOW HOSE - ISB

Genuine Cummins Part

$77.78

Qty:

178957

RESTRICTION INDICATOR - ISB / NH220 / NH250 / NT855

Genuine Cummins Part

$145.02

Qty:

Ships in 3-4 days

188580

ELBOW HOSE - ISB

Genuine Cummins Part

$61.37

Qty:

3164706

INJECTOR REMOVER - B / C SERIES

Surplus Item - Special Pricing Genuine Cummins Part

$220.45

Qty:

In Stock

3281793

VIBRATION ISOLATOR - B SERIES

Genuine Cummins Part

$67.11

Qty:

3284623

PUSH ROD COVER GASKET - ISB

Genuine Cummins Part

$45.83

Qty:

Special Order

3286499

PLAIN HOSE - 4BT / 6BT

Genuine Cummins Part

$56.19

Qty:

Ships in 3-4 days

3349230

VIBRATION ISOLATOR - ISB / QSB

Genuine Cummins Part

$429.36

Qty:

Special Order

3376592

FUEL INJECTOR PRELOAD TORQUE WRENCH - KTA19 / QSK19 / ISB / 4BT 3.9

Genuine Cummins Part

$210.52

Qty:

Ships in 3-4 days

3393944

VIBRATION ISOLATOR - ISB / QSB / ISC / QSC

Genuine Cummins Part

$19.73

Qty:

3558828

UNLOADING VALVE BODY - ISB / ISM / QSM / ISC / QSC / L10

Genuine Cummins Part

$316.68

Qty:

3595658

EXHAUST CLAMP - ISB

Genuine Cummins Part

$78.49

Qty:

3818824

TURBO MOUNTING STUD NUT - ISB240 / 6B5.9 / ISB / ISC350

Genuine Cummins Part

$5.80

Qty:

Special Order

3822513

TAPPET REMOVAL KIT - ISB / QSB

Genuine Cummins Part

$490.25

Qty:

Ships in 3-4 days

3824078

CRANKSHAFT REAR WEAR SLEEVE INSTALLER - ISB / QSB

Genuine Cummins Part

$270.36

Qty:

3824500

CRANKSHAFT FRONT WEAR SLEEVE INSTALLER - B SERIES

Genuine Cummins Part

$200.18

Qty:

3866019

MOLDED HOSE - ISB / ISC / QSC

Genuine Cummins Part

$51.20

Qty:

Special Order

3866540

PLAIN HOSE - 4BT / 6BT

Genuine Cummins Part

$27.61

Qty:

Special Order

3866565

FLEXIBLE HOSE - ISB / ISC / QSC

Genuine Cummins Part

$246.27

Qty:

3866591

FLEXIBLE HOSE - 6B5.9

Genuine Cummins Part

$214.96

Qty:

3866592

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$74.70

Qty:

3871448

LOW ENGINE SPEED CUTOFF - B SERIES

Genuine Cummins Part

$1,695.78

Qty:

3897700

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$215.72

Qty:

3897789

PLAIN HOSE - ISB / ISC / QSC

Genuine Cummins Part

$103.89

Qty:

3901774

FLYWHEEL RING GEAR - 4B 3.9 / B 4.5 / 6B 5.9 / ISB 6.7

Genuine Cummins Part

$301.73

Qty:

Ships in 3-4 days

3905084

HOSE,FLEXIBLE

Genuine Cummins Part

$148.72

Qty:

Ships in 3-4 days

3905206

OIL SUCTION CONNECTION - 4BT / 6BT / ISB / QSB

Genuine Cummins Part

$380.78

Qty:

3905217

ANGLE DRIVE ADAPTER - B SERIES / ISB

Genuine Cummins Part

$544.79

Qty:

3907022

FILLER CAP - ISB / QSB (EXPANSION TANK)

Genuine Cummins Part

$59.63

Qty:

Ships in 3-4 days

3907570

OIL PAN - 4B3.9 / 6B5.9 / B4.5 / B6.7 / ISB6.7 / QSB4.5 (STAMPED STEEL)

Genuine Cummins Part

$381.17

Qty:

3908546

FLYWHEEL RING GEAR - 4B3.9 / 6B5.9 / 6C8.3 (138 TEETH)

Genuine Cummins Part

$310.92

Qty:

3910343

HEAT EXCHANGER GASKET - 4BT3.9 / 6BT / B4.5 / B5.9 / ISB3.9 / ISB4.5 / QSB3.9

Genuine Cummins Part

$24.50

Qty:

Ships in 1-2 days

3910344

HEAT EXCHANGER COVER - ISB

Genuine Cummins Part

$93.94

Qty:

3910992

EXHAUST OUTLET CONNECTION - 4B3.9 / B4.5 / B5.9 / ISB3.9 / ISB5.9G / QSB3.9

Genuine Cummins Part

$300.46

Qty:

3910993

EXHAUST OUTLET TUBE - 4BT3.9 / 6BT5.9 / ISB3.9 / QSB3.9 / QSB4.5

Genuine Cummins Part

$255.00

Qty:

Ships in 3-4 days

3911316

ENGINE FAN - 4BT / 6BT / ISB 6.7L / 6CTA 8.3L

BLOWER TYPE, 18" DIAMETER, 7 BLADES, PLASTIC
Genuine Cummins Part

$560.15

Qty:

3911836

ENGINE HEATER - 4B3.9 / B4.5 / B5.9 / B6.7 / ISB6.7 / QSB

Genuine Cummins Part

$2,768.83

Qty:

3912751

ENGINE FAN - 4BT / 6BT / ISB 6.7L (SUCKER TYPE, 20" DIAMETER, 10 BLADES, PLASTIC)

Genuine Cummins Part

$664.72

Qty:

3912965

ELBOW HOSE - ISB

Genuine Cummins Part

$68.52

Qty:

3914279

ENGINE FAN - 4BT / 6BT / ISB 6.7L (SUCKER TYPE, 22" DIAMETER, 6 BLADES, METAL)

Genuine Cummins Part

$702.00

Qty:

3914458

FAN PULLEY - B Series / ISB / QSB / 6CTA / ISC / QSC

Genuine Cummins Part

$149.89

Qty:

Ships in 3-4 days

3914460

FAN PULLEY - ISB / QSB

Genuine Cummins Part

$149.26

Qty:

3914494

CRANKSHAFT PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$137.73

Qty:

Ships in 3-4 days

3918188

SEALING WASHER - 4BT3.9 / 6BT5.9 / ISB3.9 / ISB4.5 / QSB3.9 / QSB4.5

Genuine Cummins Part

$9.54

Qty:

Ships in 3-4 days

3918217

TEMPERATURE GAUGE - B SERIES / ISB

Genuine Cummins Part

$578.47

Qty:

In Stock

3918562

FLEXIBLE HOSE - 4BT / 6BT

Genuine Cummins Part

$104.05

Qty:

3919619

VACUUM PUMP BRACE - ISB

Genuine Cummins Part

$108.56

Qty:

3920862

ALTERNATOR BRACE - ISB / B SERIES

Genuine Cummins Part

$174.97

Qty:

3921961

EXHAUST OUTLET CONNECTION GASKET - 4BT3.9 / 6BT5.9 / ISB3.9 / QSB3.9

Genuine Cummins Part

$24.91

Qty:

Ships in 3-4 days

3924147

THREADED PLUG - 6B5.9 / B5.9 / ISB3.9 / ISB4.5 / ISB5.9G / ISB6.7 / QSB3.9

Genuine Cummins Part

$20.81

Qty:

In Stock

3929108

INTAKE AIR HEATER - 4B3.9 / B4.5 / B5.9 / B6.7 / ISB6.7 / QSB

Genuine Cummins Part

$511.44

Qty:

Ships in 3-4 days

3930820

ALTERNATOR SUPPORT - 4B3.10 / 6B5.10 / ISB3.9 / ISB4.5 / QSB3.9 / QSB4.5

Genuine Cummins Part

$132.83

Qty:

In Stock

3930838

BELT TENSIONER BRACKET - ISB

Genuine Cummins Part

$192.92

Qty:

Special Order

3930888

WATER INLET CONNECTION - 4BT / 6BT / ISB / QSB

Genuine Cummins Part

$1,553.00

Qty:

3933364

DIPSTICK - ISB

Genuine Cummins Part

$137.73

Qty:

Ships in 3-4 days

3934084

OIL DRAIN CONNECTION - B SERIES

Genuine Cummins Part

$140.79

Qty:

Ships in 3-4 days

3934085

TURBOCHARGER OIL DRAIN CONNECTION - ISB

Genuine Cummins Part

$143.05

Qty:

In Stock

3934396

FLEXIBLE HOSE - ISB / QSB

Genuine Cummins Part

$121.45

Qty:

3934720

ELBOW HOSE - ISB

Genuine Cummins Part

$56.36

Qty:

3939258

COVER PLATE GASKET - 4BT3.9 / 6BT / ISB3.9 / ISB4.5 / QSB3.9 / QSB4.5

Genuine Cummins Part

$7.59

Qty:

In Stock

3939374

PISTON PIN - NH220 / NH250 / NT855 / ISB / QSB / ISB

Genuine Cummins Part

$70.16

Qty:

3941929

WATER INLET CONNECTION - 4BT / 6BT / ISB / QSB

Genuine Cummins Part

$91.25

Qty:

Ships in 3-4 days

3942441

SPEED INDICATOR RING - 4B3.9 / 6B5.9 / ISB6.7 / QSB5.9

Genuine Cummins Part

$146.23

Qty:

Ships in 3-4 days

3944593

EXHAUST MANIFOLD BOLT - ISB / ISC / 6B5.9

Genuine Cummins Part

$7.01

Qty:

Ships in 3-4 days

3945252

MOUNTING SPACER - ISC350 / ISL400 / ISLG320 / QSB6.7 / ISC330 / ISB / B5.9-A200

Genuine Cummins Part

$11.58

Qty:

Ships in 3-4 days

3957921

ZINC ELECTRODE PLUG - ISM / QSM / ISB / QSB / ISB

Genuine Cummins Part

$62.28

Qty:

Special Order

3963988

SEALING WASHER - 4BT3.9 / 6BT5.9 / ISB3.9 / ISB4.5 / QSB3.9 / QSB4.5

Genuine Cummins Part

$7.27

Qty:

Ships in 3-4 days

3964427

STARTER - 4B3.9 / B4.5 / B6.7 / ISB6.7 / QSB4.5 / QSB5.9 (12 V)

Genuine Cummins Part

$1,017.15

Qty:

Ships in 3-4 days

3968021

VIBRATION ISOLATOR - ISB / QSB / ISC / QSC

Genuine Cummins Part

$545.74

Qty:

3971303

WIRING HARNESS - ISB

Genuine Cummins Part

$510.19

Qty:

3971321

WIRING HARNESS - ISB

Genuine Cummins Part

$1,077.45

Qty:

3971324

WIRING HARNESS - ISB

Genuine Cummins Part

$142.54

Qty:

Special Order

3972345

SPEED INDICATOR RING - 4B3.9 / 6B5.9 / 6C8.3 / ISC8.3 / QSC8.3 / QSB5.9

Genuine Cummins Part

$130.58

Qty:

3973161

FUEL SUPPLY TUBE - 4B3.9 / ISB / QSB3.9 / QSB4.5

Genuine Cummins Part

$150.63

Qty:

3978313

FLYWHEEL RING GEAR - 4B3.9 / 6B5.9 / B4.5 / B5.9 / B6.7 / ISB6.7

Genuine Cummins Part

$316.13

Qty:

3978324

IDLER PULLEY - ISB / QSB

Genuine Cummins Part

$223.69

Qty:

Ships in 3-4 days

4003445

ALTERNATOR - 4B3.9 / 6B5.9 / 6C8.3 / ISC / ISL / M11 (12 V, 130 A)

Genuine Cummins Part

$1,830.26

Qty:

Special Order

4019401

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$116.58

Qty:

4020094

MOLDED HOSE - ISB

Genuine Cummins Part

$64.73

Qty:

4078924

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$396.02

Qty:

4089399

STATOR REPAIR KIT - 4B3.9 / B4.5 / B5.9 / B6.7 / ISB6.7 / QSB

Genuine Cummins Part

$194.45

Qty:

4089742

VACUUM PUMP REPAIR KIT - 4B3.9 / 6B5.9 / ISB / ISD

Genuine Cummins Part

$34.07

Qty:

4931611

AIR CLEANER ELEMENT - ISB

Genuine Cummins Part

$807.73

Qty:

4936347

CRANKCASE BREATHER COVER - ISB

Genuine Cummins Part

$311.23

Qty:

4938657

ROCKER LEVER HOUSING - ISB

Genuine Cummins Part

$340.09

Qty:

4955855

MAIN BEARING SET (STANDARD) - B SERIES

Genuine Cummins Part

$282.47

Qty:

4982184

O-RING SEAL - ISB / QSB

Genuine Cummins Part

$41.63

Qty:

4991240

IDLER PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$264.19

Qty:

Ships in 1-2 days

5272280

ALTERNATOR PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$199.83

Qty:

Ships in 3-4 days

5282158

FAN PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$147.10

Qty:

Ships in 3-4 days

5285862

ALTERNATOR - B SERIES / ISB

Genuine Cummins Part

$1,205.02

Qty:

5316342

ALTERNATOR - ISB

Genuine Cummins Part

$971.89

Qty:

5443623

AFTERCOOLER - ISB / B SERIES

$7,807.70

Qty:

5450793

V-BAND CLAMP - ISB / ISC / QSC

Genuine Cummins Part

$91.82

Qty:

63549

PLAIN HOSE - ISB

Genuine Cummins Part

$33.81

Qty:

Ships in 3-4 days

DS-184240

UNLOADER VALVE CAP - ISB / ISC / QSC

$44.34

Qty:

Ships in 1-2 days

DS-3067979

CLAMP - ISB / ISX / QSX / ISC / QSC

$40.23

Qty:

Ships in 1-2 days

DS-3069053

V-BAND CLAMP - ISB / ISC / QSC

$33.36

Qty:

Ships in 1-2 days

DS-3283767

PUSH ROD COVER GASKET - 4B3.9 / B4.5 / QSB4.5 / B3.9-C130

$11.31

Qty:

In Stock

Parts for Cummins 4BT 3.9 and 6BT 5.9 Engines

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