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Pulley-Alternator (Decoupling) 2002-2006
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Alternator Pulley (Decoupling) 2002-2006

Freewheel Clutch/Pulley for alternator and is a known cause of many serpentine belt related problems.  These units are standard equipment on all new Sprinter alternators. 
IT IS COMMON FOR THIS DECLUTCHING PULLEY TO FAIL, LONG BEFORE THE ALTERNATOR WEARS OUT.
The Pulley Removal Tool is required for installation of this unit.

IF YOU ARE ORDERING A NEW ALTERNATOR, DO NOT ORDER THIS ITEM, AS IT IS INCLUDED WITH THE ALTERNATOR
 
Dealer List  $239.00
Europarts Price:
$59.97
Savings:$179.03 (75%)
Qty: 
 
Detailed Description
Sprinter 2002-2006

Fits all four versions of the Bosch alternators...90, 120, 150 and 200 Amp

THIS IS AN EXTREMELY CRITICAL PART.  Manufactured by INA, the OEM supplier to both Bosch and Mercedes Benz.

If you have had problems with broken or thrown serpentine belts or a broken belt tensioner arm or roller, this decoupling or declutching pulley has most likely failed.  When operating correctly, this unit has a one-way clutch to minimize belt flutter and therefore, stress.  Over time, this pulley will seize, thereby losing its one-way decoupling/declutching action and cause failure of other components.

Video demonstration of why the declutching pulley is a critical component: http://www.youtube.com/watch?v=4EXYP1CmL9Q&feature=relate


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