Aftermarket Bosch Alternator Decoupler Pulley 24-91335-4
$80.00
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Volvo Truck
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Volvo - Europe Car
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S80 II (AS) Eng.B 6304 T4 T6 AWD 224kw B 6304 T4 2010
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S80 II (AS) Eng.B 6324 S 3.2 AWD 175kw B 6324 S 2007
S80 Mk2 3200, B6324S 2006-2010
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V70 III (BW) Eng.B 6324 S 3.2 AWD 175kw B 6324 S 2007-2010
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Precision aftermarket replacement part
Designed to match original fit, function, and performance
Helps reduce belt vibration and accessory drive noise
Supports smooth alternator operation during engine acceleration and deceleration
Manufactured for dependable long-term operation
Ideal for alternator rebuilding and repair
Cross-referenced to OEM and aftermarket part numbers
An alternator clutch pulley, also known as an overrunning alternator pulley (OAP) or overrunning alternator decoupler (OAD), allows the alternator rotor to continue spinning independently during engine deceleration. This helps reduce belt vibration, minimizes stress on the serpentine belt drive system, and improves overall accessory drive performance.
A properly functioning clutch pulley helps reduce belt noise, improves belt tensioner stability, and protects the alternator and related drive components from excessive shock loads. Replacing a worn or seized clutch pulley is an important step in restoring proper belt system operation and extending the service life of the alternator.
Replace the alternator clutch pulley if you notice:
Chirping or squealing belt noise
Excessive belt vibration
Failing or bouncing belt tensioner
Seized or locked pulley
Free-spinning pulley in both directions
Rough or noisy pulley bearing
Premature serpentine belt wear
Clutch pulley failure discovered during alternator rebuilding
Installation should be performed by a qualified technician or experienced alternator rebuilder. Always use the correct clutch pulley removal and installation tools designed for your alternator application. Inspect the alternator shaft, threads, front bearing, belt tensioner, serpentine belt, and accessory drive components for signs of wear or damage before installation.
Verify the replacement pulley matches the original pulley design, rotation, thread specifications, and overall dimensions. After installation, ensure the pulley operates smoothly and verify proper belt alignment and tension before returning the alternator to service.
Inspect other common wear components to help maximize charging system reliability:
RC Auto Electric specializes in alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of OEM and aftermarket electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.
Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original part, pulley style, thread specifications, dimensions, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.