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Cummins ISB and QSB Belt Tensioners

Belt Tensioner for Cummins ISB and QSB Engines

We stock belt tensioners for Cummins ISB and QSB engines. You can easily access our inventory by visiting the product links listed below.

If you do not see the part you are looking for, please use our quote request form or call us at 855.470.3525: our knowledgeable sales staff will gladly help you.


BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

Genuine Cummins Part

$246.96

BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

Genuine Cummins Part

$210.93

BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

Genuine Cummins Part

$237.44

BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

Genuine Cummins Part

$209.93

BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

Genuine Cummins Part

$221.20

BELT TENSIONER - B / ISB / QSB

Genuine Cummins Part

$210.93

BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

Genuine Cummins Part

$211.93

BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

Genuine Cummins Part

$264.11

BELT TENSIONER - B SERIES / ISB / QSB

$83.95

BELT TENSIONER - 4BT3.9 / 6BT5.9 / ISB / ISB3.9 / ISB4.5 / QSB3.9

$88.05

BELT TENSIONER - B SERIES / ISB / QSB

$202.49

BELT TENSIONER - 6C / ISB / QSB

$147.82

BELT TENSIONER - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB

$214.34