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Cummins 4BT 3.9 and 6BT 5.9 Sensors

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Senders and Switches

Ensure the smooth operation of Cummins B-Series engines with sensors from Diesel Parts Direct. We stock a wide selection of parts that support critical components of the 4BT and 6BT engines. From 5.9 Cummins MAP sensors and temperature switches, to 4BT oil pressure sensors and coolant level switches, we’ve got you covered.

Our A+ rating from the Better Business Bureau means you can trust us to deliver exceptional customer service and high-quality Cummins parts. As a bonus, we hold many Cummins sensors in stock, ready for same-day shipping.

For optimum performance levels of Cummins B-Series engines, choose sensors from Diesel Parts Direct.


TEMPERATURE SWITCH

Genuine Cummins Part

  • $106.65
    • $106.65
    Qty: 

    GEAR OIL PRESSURE SENSOR

    Genuine Cummins Part

  • $525.25
    • $525.25
    Qty: 

    TEMPERATURE SENSOR - 6C8.3 / G8.3 / ISC / ISL

  • $66.81
    • $66.81
    Qty: 

    PRESSURE SENSOR - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

  • $143.07
    • $143.07
    Qty: 

    POSITION SENSOR - ISB / QSB / ISX / QSX

  • $74.89
    • $74.89
    Qty: 

    INTAKE MANIFOLD PRESSURE SENSOR

  • $81.07
    • $81.07
    Qty: 

    REMANUFACTURED NITROGEN OXIDE SENSOR - 4B3.9 / B4.5

    Genuine Cummins ReCon Part

    Additional refundable core charge: $110.00 (See Details)

  • $747.46
    • $747.46
    Qty: 

    NITROGEN OXIDE SENSOR

    Genuine Cummins Part

  • $1,421.47
    • $1,421.47
    Qty: 

    DELTA PRESSURE SENSOR - 6C8.3 / G8.3 / ISC / ISL

    Genuine Cummins Part

  • $200.20
    • $200.20
    Qty: 

    PRESSURE GAUGE ADAPTER - QSK19 / QSK50 / B6.7

  • $505.79
    • $505.79
    Qty: 

    ACTUATOR (ETR FUEL CONTROL)

  • $69.41
    • $69.41
    Qty: 

    COOLANT LEVEL SWITCH - 4B3.9 / B4.5 / 6B5.9 / B6.7

    Genuine Cummins Part

  • $171.78
    • $171.78
    Qty: 

    CAMSHAFT POSITION SENSOR - ISB / QSB / ISX / QSX

    Genuine Cummins Part

  • $29.20
    • $29.20
    Qty: 

    TEMPERATURE SENSOR (COOLANT / OIL / FUEL)

  • $14.43
    • $14.43
    Qty: 

    OIL PRESSURE SWITCH

  • $46.36
    • $46.36
    Qty: 

    OIL PRESSURE SENSOR

  • $165.28
    • $165.28
    Qty: 

    TEMPERATURE SENSOR - B SERIES / C SERIES / ISB / QSB

  • $43.95
    • $43.95
    Qty: 

    PRESSURE SENSOR - B SERIES / C SERIES / ISB / QSB

  • $33.07
    • $33.07
    Qty: 

    TEMPERATURE SENSOR - C SERIES

  • $44.06
    • $44.06
    Qty: 

    TEMPERATURE SENSOR - B SERIES / C SERIES / ISB / QSB

  • $39.15
    • $39.15
    Qty: 

    PRESSURE SENSOR

    Genuine Cummins Part

  • $206.53
    • $206.53
    Qty: 

    PRESSURE SENSOR (INTAKE MANIFOLD)

  • $83.02
    • $83.02
    Qty: 

    PRESSURE SENSOR - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

    WITH 4010519 O-RING SEAL
    Genuine Cummins Part

  • $175.75
    • $175.75
    Qty: 

    PRESSURE REGULATOR PLUNGER - 4B3.9 /  6B5.9 / B5.9 / ISB3.9 / ISB5.9G / QSB3.9

  • $16.33
    • $16.33
    Qty: 

    WATER TEMPERATURE SENDER - 4B3.9 / B4.5 / 6B5.9

    Genuine Cummins Part

  • $185.57
    • $185.57
    Qty: 

    TEMPERATURE SWITCH - 4B3.9 / B4.5 / 6B5.9 / B6.7

    Genuine Cummins Part

  • $359.85
    • $359.85
    Qty: 

    WATER SENSOR - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

    Genuine Cummins Part

  • $137.69
    • $137.69
    Qty: 

    THROTTLE POSITION SENSOR - 4B3.9 / B4.5 / 6B5.9

    Genuine Cummins Part

  • $312.77
    • $312.77
    Qty: 

    TEMPERATURE SENSOR - 4B3.9 / 6B5.9 / B6.7 / ISB / QSB

    Genuine Cummins Part

  • $78.10
    • $78.10
    Qty: 

    PRESSURE SENSOR - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

    Genuine Cummins Part

  • $256.12
    • $256.12
    Qty: 

    PRESSURE SENSOR - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

    Genuine Cummins Part

  • $125.31
    • $125.31
    Qty: 

    OIL PRESSURE SWITCH - 4B3.9 / 6B5.9 / ISB / ISD

    Genuine Cummins Part

  • $25.42
    • $25.42
    Qty: 

    OIL PRESSURE SWITCH - 6C8.3 / G8.3 / ISC / ISL

    Genuine Cummins Part

  • $48.97
    • $48.97
    Qty: 

    PRESSURE SENSOR - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB

    Genuine Cummins Part

  • $144.68
    • $144.68
    Qty: 

    PRESSURE SENSOR

    Genuine Cummins Part

  • $474.54
    • $474.54
    Qty: 

    CRANKSHAFT POSITION SENSOR - ISB / C SERIES / B SERIES

    Genuine Cummins Part

  • $74.18
    • $74.18
    Qty: 

    POSITION SENSOR - B SERIES / C SERIES / ISB / QSB

  • $13.13
    • $13.13
    Qty: 

    POSITION SENSOR - B SERIES / C SERIES / ISB / QSB

  • $50.78
    • $50.78
    Qty: 

    PRESSURE SENSOR - B SERIES / C SERIES / ISB / QSB

  • $80.41
    • $80.41
    Qty: 

    MAGNETIC SWITCH - 4B 3.9 / B 4.5 / 6B 5.9 / ISB 6.7

    Genuine Cummins Part

  • $47.12
    • $47.12
    Qty: 

    TEMPERATURE SWITCH

    Genuine Cummins Part

  • $116.08
    • $116.08
    Qty: 

    TEMPERATURE SWITCH

    Genuine Cummins Part

  • $106.21
    • $106.21
    Qty: 

    PRESSURE SENSOR - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

    Genuine Cummins Part

  • $370.33
    • $370.33
    Qty: 
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