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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

$46.84

ELBOW HOSE - ISB

Genuine Cummins Part

$67.93

RESTRICTION INDICATOR - ISB / NH220 / NH250 / NT855

Genuine Cummins Part

$126.61

ELBOW HOSE - ISB

Genuine Cummins Part

$53.60

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

Genuine Cummins Part

$1,023.83

INJECTOR REMOVER - B / C SERIES

Genuine Cummins Part

$281.96

VIBRATION ISOLATOR - B SERIES

Genuine Cummins Part

$58.57

PUSH ROD COVER GASKET - ISB

Genuine Cummins Part

$41.47

PLAIN HOSE

Genuine Cummins Part

$51.35

VIBRATION ISOLATOR - ISB / QSB

Genuine Cummins Part

$374.89

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

Genuine Cummins Part

$176.96

VIBRATION ISOLATOR - ISB / QSB / ISC / QSC

Genuine Cummins Part

$17.24

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

Genuine Cummins Part

$276.52

EXHAUST CLAMP - ISB

Genuine Cummins Part

$68.54

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

Genuine Cummins Part

$5.40

TAPPET REMOVAL KIT - ISB / QSB

Genuine Cummins Part

$445.86

CRANKSHAFT REAR WEAR SLEEVE INSTALLER - ISB / QSB

Genuine Cummins Part

$248.27

CRANKSHAFT FRONT WEAR SLEEVE INSTALLER

Genuine Cummins Part

$182.95

MOLDED HOSE - ISB / ISC / QSC

Surplus Item - Special Pricing Genuine Cummins Part

$26.32

PLAIN HOSE

Surplus Item - Special Pricing Genuine Cummins Part

$17.41

FLEXIBLE HOSE - ISB / ISC / QSC

Genuine Cummins Part

$195.47

FLEXIBLE HOSE

Genuine Cummins Part

$185.70

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$70.98

LOW ENGINE SPEED CUTOFF

Genuine Cummins Part

$1,430.47

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$188.34

PLAIN HOSE - ISB / ISC / QSC

Genuine Cummins Part

$90.71

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

Genuine Cummins Part

$250.84

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

Genuine Cummins Part

$198.94

ANGLE DRIVE ADAPTER - B SERIES / ISB

Genuine Cummins Part

$475.68

FILLER CAP - ISB / QSB (EXPANSION TANK)

Genuine Cummins Part

$52.05

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

Genuine Cummins Part

$332.81

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

$21.19

HEAT EXCHANGER COVER - ISB

Genuine Cummins Part

$81.55

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

Surplus Item - Special Pricing Genuine Cummins Part

$139.91

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

Genuine Cummins Part

$222.63

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

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

$489.06

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

Genuine Cummins Part

$2,391.78

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

Genuine Cummins Part

$580.40

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

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

$584.45

ELBOW HOSE - ISB

Genuine Cummins Part

$59.82

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

Genuine Cummins Part

$612.95

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

Genuine Cummins Part

$130.90

FAN PULLEY - ISB / QSB

Genuine Cummins Part

$130.34

CRANKSHAFT PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$120.26

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

Genuine Cummins Part

$90.86

VACUUM PUMP BRACE - ISB

Genuine Cummins Part

$92.90

ALTERNATOR BRACE

Genuine Cummins Part

$166.21

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

Surplus Item - Special Pricing Genuine Cummins Part

$14.53

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

$105.42

BELT TENSIONER BRACKET - ISB

Genuine Cummins Part

$168.26

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

Genuine Cummins Part

$675.59

DIPSTICK - ISB

Genuine Cummins Part

$121.92

TURBOCHARGER OIL DRAIN CONNECTION - ISB

Genuine Cummins Part

$124.89

FLEXIBLE HOSE - ISB / QSB

Genuine Cummins Part

$106.06

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

$61.25

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

$127.67

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

Genuine Cummins Part

$6.50

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

$54.39

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

Genuine Cummins Part

$6.62

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

Genuine Cummins Part

$888.11

VIBRATION ISOLATOR - ISB / QSB / ISC / QSC

Genuine Cummins Part

$476.51

WIRING HARNESS - ISB

Genuine Cummins Part

$477.76

WIRING HARNESS - ISB

Genuine Cummins Part

$930.73

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

$119.30

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

Genuine Cummins Part

$131.53

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

Genuine Cummins Part

$276.00

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

$1,598.04

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$101.79

MOLDED HOSE - ISB

Genuine Cummins Part

$56.55

FLEXIBLE HOSE - ISB

Genuine Cummins Part

$342.07

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

$697.71

CRANKCASE BREATHER COVER - ISB

Genuine Cummins Part

$282.99

ROCKER LEVER HOUSING - ISB

Genuine Cummins Part

$293.78

MAIN BEARING SET (STANDARD) - B SERIES

Genuine Cummins Part

$246.63

O-RING SEAL - ISB / QSB

Genuine Cummins Part

$35.61

IDLER PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$241.39

ALTERNATOR PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$174.25

FAN PULLEY - ISB / QSB / ISC / QSC

Genuine Cummins Part

$134.43

ALTERNATOR - B SERIES / ISB

Genuine Cummins Part

$1,052.12

ALTERNATOR - ISB

Genuine Cummins Part

$861.12

V-BAND CLAMP - ISB / ISC / QSC

Genuine Cummins Part

$82.71

PLAIN HOSE - ISB

Genuine Cummins Part

$29.50

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

TURBO MOUNTING STUD - ISC350 / C8.3-C215 / B5.9 / 6C8.3 / ISB-RV275 / ISC300 / C8.3-P

$7.04