• DIM 1:18mm Belt x 56mm Rib OD x 17mm Bore, M16 Threads
• DIM 2:4.5mm 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

• Audi, Volkswagen 028-903-119AN, 028-903-119J, 028-903-119T, 028-903-165, 028-906-165, Bosch 1 126 601 534, 1 126 601 566, 1 127 011 847, 1126601534, 1126601566, 1127011847, F 00M 991 390, F00M991390, INA Bearing Co 535 0004 10, F-225653.03, F-225653.04, F-225653.05, F-225653.08, F-225653.09, F-225653.12, F-225653.13, F-225653.3, F-225653.4, F-225653.5, F-225653.8, F-225653.9, Valeo 588051

• Audi - Europe (1992-2001) ** Volkswagen - Europe (1996-2000)

• 13833, 21429, 21430, 21482, 22864, 22866

• Audi, Volkswagen 028-903-018G, 028-903-027B, 028-903-027C, 028-903-027Q, 028-903-027QX, 028-903-027S, 028-903-028, 028-903-028A, 028-903-028F, 028-903-028T; Bosch 0 123 310 024, 0 123 310 031, 0 123 320 017, 0 123 320 025, 0 123 320 055, 0 123 515 003, 0 123 515 008, 0 123 515 011, 0 986 040 600; Letrika (Iskra) Tech. AAK5704, AAK5707, AAN5314; Magneton 9-517-181, 9-517-182, 9-517-185, 9-517-482; Marelli 943355027010, 944390406000

Vehicle Application

Audi - Europe Car

80 Avant (8C, B4) Eng.1Z 1.9 TDI 66kw 1Z 1992-1995
A4 1.9 TDI 2000
A4 1900, 1Z 1995-1996
A4 1900, AFF AFN AHH AVG 1996-1999
A4 1900, AJM 1998-2000
A4 (8D2, B5) Eng.1Z, AHH, AHU 1.9 TDI 66kw "1Z, AHH, AHU" 1995-1996
A4 (8D2, B5) Eng.AJM 1.9 TDI 85kw AJM 2000
A4 AEF, 1.9TDI 1996-1998
A4 Avant (8D5, B5) Eng.1Z, AHH, AHU 1.9 TDI 66kw "1Z, AHH, AHU" 1996
A4 Avant (8D5, B5) Eng.AJM 1.9 TDI 85kw AJM 2000-2001
A4 Avant AFN, 1.9TDI 1996-1998
A4 Avant AHU, 1.9TDI 1996-1998
A4 Avant Quattro AFN, 1.9TDI 1996-1999
A4 Avant Quattro AJM, 1.9TDI 1998-2000
A6 1900, 1Z AHU 1995-1997
A6 (4A, C4) Eng.1Z, AHU 1.9 TDI 66kw "1Z, AHU" 1995-1997
A6 Avant (4A, C4) Eng.1Z, AHU 1.9 TDI 66kw "1Z, AHU" 1995-1997

Volkswagen - Europe Car

Passat 1.9 TDI 1996-2000
Passat 1900 1997-1998
Passat AHH, 1.9TDI 1997-1998
Passat Mk2 1900, AFN 1996-1997
Passat Variant AHH, 1.9TDI 1998
PASSAT (3B2) Eng.AFN, AVG 1.9 TDI 81kw "AFN, AVG" 1996-1999
PASSAT (3B2) Eng.AFN, AVG 1.9 TDI 81kw AFN; AVG 1996-1999
PASSAT (3B2) Eng.AFN, AVG 1.9 TDI Syncro/4motion 81kw "AFN, AVG" 1996-1999
PASSAT (3B2) Eng.AFN, AVG 1.9 TDI Syncro/4motion 81kw AFN; AVG 1996-1999
PASSAT (3B2) Eng.AHH, AHU 1.9 TDI 66kw "AHH, AHU" 1996-1999
PASSAT (3B2) Eng.AHH, AHU 1.9 TDI 66kw AHH; AHU 1996-1999
PASSAT Estate (3B5) Eng.AFN, AVG 1.9 TDI 81kw "AFN, AVG" 1997-1999
PASSAT Estate (3B5) Eng.AFN, AVG 1.9 TDI 81kw AFN; AVG 1997-1999
PASSAT Estate (3B5) Eng.AFN, AVG 1.9 TDI Syncro/4motion 81kw "AFN, AVG" 1997-1999
PASSAT Estate (3B5) Eng.AFN, AVG 1.9 TDI Syncro/4motion 81kw AFN; AVG 1997-1999
PASSAT Estate (3B5) Eng.AHH, AHU 1.9 TDI 66kw "AHH, AHU" 1997-1999
PASSAT Estate (3B5) Eng.AHH, AHU 1.9 TDI 66kw AHH; AHU 1997-1999

Features & Benefits

• 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

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 is an important step in restoring proper belt system operation and extending the service life of the alternator.

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. 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.

While You're Rebuilding

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

• Bearings

• Brushes

• Brush Holder

• Slip Rings

• Voltage Regulator

• Rectifier

• Rotor

• Stator

• Insulators

Why Buy From RC Auto Electric?

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.

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 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.