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Cummins 3973819 Belt Tensioner Assembly - Image 1
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Cummins 3973819 Belt Tensioner Assembly


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Part TypeAccessory Drive Belt Tensioner
Belt TypeSerpentine
Groove Count8
Engine Displacement8.3L
ApplicationsCummins ISC, ISL, QSL9, QSB, 6C8.3, 6CT8.3, QSC8.3
Weight4.5 kg
ConditionNew
Manufacturer No.
3973819
OEM Part No.
39738195683521
Engine Part No.
Cummins ISC 8.3Cummins ISL 8.3Cummins ISL9 8.3Cummins QSL9 8.3Cummins QSB 6.7Cummins 6C8.3Cummins 6CT8.3Cummins QSC8.3
Interchange No.
8947338627180881T386271001197096.660471564375816.49581FLT689406
Fitment Vehicles
Freightliner M2 2007-2014Freightliner 108SD 2013-2015Kenworth T370 2010-2015Kenworth T440 2010-2015Kenworth T470 2010-2015Bluebird AARE Bus with ISC 8.3Heavy-duty trucks with Cummins ISC/ISLBuses with Cummins ISC/ISLIndustrial equipment with Cummins QSL9/QSB

Engine System - Industrial Encyclopedia

OEM replacement accessory drive belt tensioner for Cummins ISC, ISL, QSL9, and QSB 8.3L diesel engines, maintains serpentine belt tension and alignment for reliable accessory drive operation.