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Parts for Cummins 4BT 3.9 and 6BT 5.9 Engines

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 855.470.3525: our knowledgeable inside sales staff will promptly assist you.


MALE ADAPTER ELBOW - ISB / KTA19 / QSK19

Genuine Cummins Part

$46.86

ELBOW HOSE - ISB

Genuine Cummins Part

$67.96

RESTRICTION INDICATOR - ISB / NH220 / NH250 / NT855

Genuine Cummins Part

$126.66

ELBOW HOSE - ISB

Genuine Cummins Part

$53.60

VALVE SPRING COMPRESSOR TOOL - KTA19 / QSK19 / KTA38 / QSK38

Genuine Cummins Part

$1,034.12

INJECTOR REMOVER - B / C SERIES

Genuine Cummins Part

$281.98

VIBRATION ISOLATOR - B SERIES

Genuine Cummins Part

$58.59

PUSH ROD COVER GASKET - ISB

Genuine Cummins Part

$41.47

PLAIN HOSE - 4BT / 6BT

Genuine Cummins Part

$51.35

VIBRATION ISOLATOR - ISB / QSB

Genuine Cummins Part

$375.01

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

Genuine Cummins Part

$186.16

VIBRATION ISOLATOR - ISB / QSB / ISC / QSC

Genuine Cummins Part

$17.24

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

Genuine Cummins Part

$276.61

EXHAUST CLAMP - ISB

Genuine Cummins Part

$68.59

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

Genuine Cummins Part

$5.39

TAPPET REMOVAL KIT - ISB / QSB

Genuine Cummins Part

$445.90

CRANKSHAFT REAR WEAR SLEEVE INSTALLER - ISB / QSB

Genuine Cummins Part

$248.27

CRANKSHAFT FRONT WEAR SLEEVE INSTALLER - B SERIES

Genuine Cummins Part

$182.95

MOLDED HOSE - ISB / ISC / QSC

Genuine Cummins Part

$44.69

PLAIN HOSE - 4BT / 6BT

Genuine Cummins Part

$24.12

FLEXIBLE HOSE - ISB / ISC / QSC

Genuine Cummins Part

$215.09

FLEXIBLE HOSE - 6B5.9

Genuine Cummins Part

$204.29

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$70.99

LOW ENGINE SPEED CUTOFF - B SERIES

Genuine Cummins Part

$1,430.47

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$188.39

PLAIN HOSE - ISB / ISC / QSC

Genuine Cummins Part

$90.74

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

Genuine Cummins Part

$263.51

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

Genuine Cummins Part

$332.61

ANGLE DRIVE ADAPTER - B SERIES / ISB

Genuine Cummins Part

$475.81

FILLER CAP - ISB / QSB (EXPANSION TANK)

Genuine Cummins Part

$52.08

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

Genuine Cummins Part

$332.93

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

Genuine Cummins Part

$284.10

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

Genuine Cummins Part

$21.17

HEAT EXCHANGER COVER - ISB

Genuine Cummins Part

$81.55

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

Genuine Cummins Part

$262.40

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

Genuine Cummins Part

$222.70

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

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

$489.21

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

Genuine Cummins Part

$2,391.79

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

Genuine Cummins Part

$580.60

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

SUCKER TYPE, 21" DIAMETER, 10 BLADES, PLASTIC
Genuine Cummins Part

$584.63

ELBOW HOSE - ISB

Genuine Cummins Part

$59.83

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

Genuine Cummins Part

$613.13

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

Genuine Cummins Part

$130.92

FAN PULLEY - ISB / QSB

Genuine Cummins Part

$130.38

CRANKSHAFT PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$120.28

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

Genuine Cummins Part

$8.24

TEMPERATURE GAUGE - B SERIES / ISB

Genuine Cummins Part

$502.10

FLEXIBLE HOSE - 4BT / 6BT

Genuine Cummins Part

$90.88

VACUUM PUMP BRACE - ISB

Genuine Cummins Part

$92.90

ALTERNATOR BRACE - ISB / B SERIES

Genuine Cummins Part

$166.23

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

Genuine Cummins Part

$22.16

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

Genuine Cummins Part

$18.99

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

Genuine Cummins Part

$441.80

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

Genuine Cummins Part

$116.02

BELT TENSIONER BRACKET - ISB

Genuine Cummins Part

$168.26

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

Genuine Cummins Part

$1,356.40

DIPSTICK - ISB

Genuine Cummins Part

$121.90

TURBOCHARGER OIL DRAIN CONNECTION - ISB

Genuine Cummins Part

$124.92

FLEXIBLE HOSE - ISB / QSB

Genuine Cummins Part

$106.08

ELBOW HOSE - ISB

Genuine Cummins Part

$49.22

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

Genuine Cummins Part

$7.08

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

Genuine Cummins Part

$61.28

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

Genuine Cummins Part

$83.38

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

Genuine Cummins Part

$127.72

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

Genuine Cummins Part

$6.52

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

Genuine Cummins Part

$10.60

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

Genuine Cummins Part

$54.42

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

Genuine Cummins Part

$6.65

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

Genuine Cummins Part

$888.37

VIBRATION ISOLATOR - ISB / QSB / ISC / QSC

Genuine Cummins Part

$476.64

WIRING HARNESS - ISB

Genuine Cummins Part

$477.76

WIRING HARNESS - ISB

Genuine Cummins Part

$930.74

WIRING HARNESS - ISB

Genuine Cummins Part

$123.14

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

Genuine Cummins Part

$119.32

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

Genuine Cummins Part

$131.55

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

Genuine Cummins Part

$276.09

IDLER PULLEY - ISB / QSB

Genuine Cummins Part

$204.41

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

Genuine Cummins Part

$1,598.54

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$101.83

MOLDED HOSE - ISB

Genuine Cummins Part

$56.55

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$342.09

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

Genuine Cummins Part

$169.60

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

Genuine Cummins Part

$29.74

AIR CLEANER ELEMENT - ISB

Genuine Cummins Part

$697.72

CRANKCASE BREATHER COVER - ISB

Genuine Cummins Part

$282.99

ROCKER LEVER HOUSING - ISB

Genuine Cummins Part

$293.80

MAIN BEARING SET (STANDARD) - B SERIES

Genuine Cummins Part

$246.70

O-RING SEAL - ISB / QSB

Genuine Cummins Part

$35.59

IDLER PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$241.39

ALTERNATOR PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$174.26

FAN PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$134.43

ALTERNATOR - B SERIES / ISB

Genuine Cummins Part

$1,052.44

ALTERNATOR - ISB

Genuine Cummins Part

$861.34

AFTERCOOLER - ISB / B SERIES

$6,617.21

V-BAND CLAMP - ISB / ISC / QSC

Genuine Cummins Part

$82.71

PLAIN HOSE - ISB

Genuine Cummins Part

$29.52

UNLOADER VALVE CAP - ISB / ISC / QSC

$36.94

CLAMP - ISB / ISX / QSX / ISC / QSC

$36.56

V-BAND CLAMP - ISB / ISC / QSC

$30.33

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

$11.31