OEM Alternator Clutch Pulley 24-91256, aftermarket replacement, starter parts, alternator parts, automotive electrical

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OEM Bosch Alternator Clutch Pulley 24-91256

Brand: Bosch

SKU: 24-91256OEM

availability: In stock

Product Code: Clutch Pulley

$100.00

Quantity

Quantity must be 1 or more

Shipping

In-stock orders ship out same day or next business day via USPS.

Pre Order

Pre-orders ship out in the order received within 7–21 business days.

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Description

Description

Specifications

DIM 1:18mm Belt x 56mm Rib OD x 17mm Bore, M16 Threads
DIM 2:5.5mm from hub to center of 1st groove
DIM A (MM):17
DIM B (MM):55.87
DIM C (MM):35
DIM D (MM):5
FEATURE 1:100% New
GROOVES:5
SPECS FOR:Bosch IR/IF Alternators
SPECS:5-Groove Clutch Pulley
TYPE:OAP

USED ON

Audi (1997-1999) ** Volkswagen (1998-2005)

Replaces

Audi, Volkswagen 022 903 119 B, 022 903 119 D, 028 903 119 AC, 038 903 119 J, 038 903 119 M, Bosch F 00M 147 724, F 00M 991 045, F 00M 991 378, INA Bearing Co 535 0005 10, F-225653.06, F-225653.07, F-225653.10, F-225653.11, F-552699, F-552699.XX, Lucas LOPA0011, Valeo 588008

LESTER NUMBERS

11207, 11208, 11209, 11210, 11212, 23320, 23323

UNIT NUMBERS

Audi, Volkswagen 028-903-018-K, 028-903-018K, 028-903-029-D, 028-903-029-E, 028-903-029-R, 028-903-029-RX, 028-903-029-T, 028-903-029-TX, 028-903-029A, 028-903-029B, 028-903-029D, 028-903-029E, 028-903-029N, 028-903-029NX, 028-903-029Q, 028-903-029QX, 028-903-029R, 028-903-029RX, 028-903-029S, 028-903-029SX, 028-903-029T, 028-903-029TX, 028-903-031, 028-903-031-A, 028-903-031-AX, 028-903-031A, 028-903-031AX, 06B-903-016-AD, 06B-903-016-E, 06B-903-016AD, 06B-903-016E, 06B-903-018-EX, 06B-903-018EX; Bosch 0 124 315 011, 0 124 325 018, 0 124 325 049, 0 124 515 026, 0 124 515 083, 0 124 515 197, 0 124 525 010, 0 124 525 089, 0 124 615 021; Ford 1757736, E6M2110346CA, RE6M2110346CA; Letrika (Iskra) Tech. AAN5329, AAN5329; Magneton 9-517-215; Marelli 063533250180, 063533250490; Valeo SG12B010, SG12B012, SG12B049, SG12B074, SG14B011, SG9B017, SG9B04

Vehicle Application

Audi - Europe Car

A4 1900, AFF AFN AHH AVG 1996-2000
A4 1900, AVB 2001-2004
A4 1900, AVF 2000-2003
A4 1900, AWX 2001-2005
A4 (8D2, B5) Eng.1Z, AHH, AHU 1.9 TDI 66kW 1995-2000
A4 (8D2, B5) Eng.AFN, AVG 1.9 TDI 81kW 1995-2000
A4 (8D2, B5) Eng.AFN, AVG 1.9 TDI quattro 81kW 1996-1998
A4 (8D2, B5) Eng.ADP, AHL, ANA, ARM 1.6 74kW 1995-2000
A4 (8D2, B5) Eng.ADR, APT, ARG, AVV 1.8 92kW 1995-2000
A4 (8D2, B5) Eng.AEB, ANB, APU, ARK, AWT 1.8T 110kW 1995-2000
A4 (8D2, B5) Eng.AJL 1.8T quattro 132kW 1999-2000
A4 (8E2, B6) Eng.AVB 1.9 TDI 74kW 2001-2004
A4 (8E2, B6) Eng.AVF 1.9 TDI quattro 96kW 2001-2004
A4 (8E2, B6) Eng.AVF, AWX 1.9 TDI 96kW 2000-2004
A4 Avant (8D5, B5) Eng.1Z, AHH, AHU 1.9 TDI 66kW 1996-2001
A4 Avant (8D5, B5) Eng.AFN, AVG 1.9 TDI 81kW 1996-2000
A4 Avant (8D5, B5) Eng.AFN, AVG 1.9 TDI quattro 81kW 1996-1998
A4 Avant (8D5, B5) Eng.ADP, AHL, ANA, ARM 1.6 74kW 1998-2001
A4 Avant (8D5, B5) Eng.ADR, APT, ARG, AVV 1.8 92kW 1998-2001
A4 Avant (8D5, B5) Eng.AEB, ANB, APU, ARK, AWT 1.8T 110kW 1998-2001
A4 Avant (8D5, B5) Eng.AJL 1.8T quattro 132kW 1999-2001
A4 Avant (8D5, B5) Eng.ALZ 1.6 75kW 2000-2001
A4 Avant (8E5, B6) Eng.AVB 1.9 TDI 74kW 2001-2004
A4 Avant (8E5, B6) Eng.AVF 1.9 TDI quattro 96kW 2001-2004
A4 Avant (8E5, B6) Eng.AVF, AWX 1.9 TDI 96kW 2001-2004
A6 1800 Turbo 1999-2005
A6 (4B2, C5) Eng.AFN, AVG 1.9 TDI 81kW 1998-2000
A6 (4B2, C5) Eng.AJM 1.9 TDI 85kW 2000-2001
A6 (4B2, C5) Eng.AEB, ANB, APU, ARK, AWT 1.8T quattro 110kW 1999-2003
A6 (4B2, C5) Eng.AVF, AWX 1.9 TDI 96kW 2001-2004
A6 Avant (4B5, C5) Eng.AFN 1.9 TDI 81kW 1998-2000
A6 Avant (4B5, C5) Eng.AJM 1.9 TDI 85kW 2000-2001
A6 Avant (4B5, C5) Eng.AEB, ANB, APU, ARK, AWT 1.8T quattro 110kW 1999-2003
TT (8J3) Eng.CEPA 2.5 RS quattro 250kW 2009-2010
TT Roadster (8J9) Eng.CEPA 2.5 RS quattro 250kW 2009-2010

Audi Car

A4 L4 1.8L 1781cc 1997-1999
A4 Quattro L4 1.8L 1781cc 1997-1999

Audi - China Car

A6 1.8T FV7181T 1999-2005
A6 FV7181T 1.8 1999-2005
A6 FV7181T 1.8T 1999-2005

Škoda - Europe Car

Superb 2000 AZM 2002-2008
Superb 2000 BSS/BWW 2006-2008
SUPERB (3U4) Eng.AVB 1.9 TDI 74kW 2002-2005
SUPERB (3U4) Eng.AVF, AWX 1.9 TDI 96kW 2001-2008
SUPERB (3U4) Eng.BPZ 1.9 TDI 85kW 2007-2008
SUPERB (3U4) Eng.BSS 2.0 TDI 103kW 2005-2008
SUPERB (3U4) Eng.BSV 1.9 TDI 77kW 2005-2007
SUPERB (3U4) Eng.AZM 2.0 85kW 2001-2008

Volkswagen Car

Passat L4 1.8L 1781cc 1998
Passat L4 2.0L 1967cc Diesel 2004-2005

Volkswagen - Europe Car

Passat 1600 1998-2000
Passat 1800 1998-2000
Passat 1800 Turbo 1998-2000
Passat 1800 AWT 2000-2005
Passat 1800 Turbo AWT 2000-2005
Passat 1900 1998-2000
Passat 1900 AVB/AWX 2000-2005
Passat 1900 AVF 2000-2005
Passat 2000 ALT 2001-2005
Passat 2000 AZM 2000-2005
PASSAT (3B2) 1.9 TDI (AHH/AHU) 66kW 1999-2000
PASSAT (3B2) 1.9 TDI (AFN/AVG) 81kW 1999-2000
PASSAT (3B2) 1.9 TDI Syncro/4Motion (AFN/AVG) 81kW 1999-2000
PASSAT (3B2) 1.9 TDI 4Motion (ATJ) 85kW 1999-2000
PASSAT (3B3) 1.9 TDI (AVB) 74kW 2000-2005
PASSAT (3B3) 1.9 TDI (AVF/AWX) 96kW 2000-2005
PASSAT (3B3) 2.0 TDI (BGW/BHW) 100kW 2003-2005
PASSAT Estate (3B5) 1.9 TDI (AHH/AHU) 66kW 1999-2000
PASSAT Estate (3B5) 1.9 TDI (AFN/AVG) 81kW 1999-2000
PASSAT Estate (3B5) 1.9 TDI Syncro/4Motion (AFN/AVG) 81kW 1999-2000
PASSAT Estate (3B5) 1.9 TDI 4Motion (ATJ) 85kW 1999-2000
PASSAT Variant (3B6) 1.9 TDI (AVB) 74kW 2000-2005
PASSAT Variant (3B6) 1.9 TDI (AVF/AWX) 96kW 2000-2005
PASSAT Variant (3B6) 2.0 TDI (BGW/BHW) 100kW 2003-2005

Volkswagen - China Car

Passat 1.9 Turbo Diesel (BPZ) 2008

Features & Benefits

Genuine OEM replacement part
Manufactured to original factory specifications
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
Engineered for dependable long-term reliability
Ideal for alternator rebuilding and repair

What Does an Alternator Clutch Pulley Do?

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 with a genuine OEM component helps restore the original operating characteristics intended by the manufacturer and promotes long-term charging system reliability.

Common Signs Replacement Is Needed

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 Recommendations

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. Before installation, inspect the alternator shaft, threads, front bearing, belt tensioner, serpentine belt, and accessory drive components for signs of wear or damage.

Verify that the replacement pulley matches the original OEM 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.

While You're Rebuilding

Inspect other common wear components to help maximize charging system reliability:

Why Buy From RC Auto Electric?

RC Auto Electric specializes in genuine OEM and premium aftermarket 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.

Disclaimer

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 OEM 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.

Frequently Asked Questions

How do I confirm compatibility? +

Compare part numbers, dimensions and photos with the original component.

Is this OEM or aftermarket? +

This listing is for an aftermarket replacement part.

What should I verify before ordering? +

Check all fitment and application details before purchase.

Is professional installation recommended? +

Professional installation is recommended.

Where can I find related parts? +

Browse related starter and alternator categories on RCAutoElectric.

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