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Specifications
- DIM 1:49.5mm Rib OD x 17mm Bore
- DIM A (MM):17
- DIM B (MM):49.35
- DIM C (MM):40.15
- DIM D (MM):14.55
- FEATURE 1:100% New
- GROOVES:6
- SPECS FOR: Bosch IR/IF Alternators
- SPECS:6-Groove Clutch Pulley
- TYPE:OAP
USED ON
- Audi (2007-2010) ** Volkswagen (2009-2016)
Replaces
- Audi, Volkswagen 03G-903-119B, 045-903-119, 045-903-119A, 06J-903-119A, Bosch F 00M 147 876, F 00M 991 247, F 00M 991 287, F 00M A47 723, F00M147876, F00M991247, F00M991287, F00M991932, F00MA47723, INA Bearing Co 535 0124 10, F-551406, F-551406.01, F-551406.02, F-551406.03, F-551406.04, F-551406.05, F-551406.07, F-551406.08, F-551406.1, F-551406.2, Valeo 2604787, 588016, 599248
LESTER NUMBERS
- 11425, 11463, 11714, 20017, 20017A, 20304, 20305, 20339, 20412, 20644, 20646, 20660, 20665, 20730, 20731, 20798, 20836, 21138, 21393, 21529, 21542, 23827
UNIT NUMBERS
- Audi, Volkswagen 03G-903-016-F, 03G-903-016-FX, 03G-903-016B, 03G-903-016BX, 03G-903-016E, 03G-903-016EX, 03G-903-016F, 03G-903-016FX, 03G-903-016L, 03G-903-016LX, 03G-903-016N, 03G-903-016NX, 03G-903-023F, 03G-903-023F, 03G-903-023FX, 03G-903-023FX, 03H 903 023 M, 03H 903 023 MX, 03L 903 017, 03L 903 017, 03L 903 017 E, 03L 903 017 E, 03L 903 017 EX, 03L 903 017 EX, 03L 903 017 X, 03L 903 017 X, 03L 903 017B, 03L 903 017BX, 03L 903 023 M, 03L 903 024 B, 03L 903 024 S, 03L-903-016-AX, 03L-903-017-B, 03L-903-017-BX, 03L-903-023-P, 03L-903-023-PX, 03L-903-023K, 03L-903-023KX, 03L-903-023PX, 03L-903-024-B, 03L-903-024-T, 03L903016AX, 045-903-023C, 045-903-023CX, 045-903-023D, 045-903-023DX, 045-903-023H, 045-903-023HX, 04L 903 017, 04L 903 017 D, 04L 903 017 DX, 04L 903 017 E, 04L 903 017A, 04L 903 023 T, 04L 903 023 TX, 04L-903-017-A, 04L-903-017-C, 04L-903-017-CX, 04L-903-017C, 04L-903-017CX, 04L-903-024S, 04L-903-024SX, 06F 903 023 P, 06F 903 023M, 06F 903 023MX, 06F-903-023-M, 06F-903-023-MX, 06F-903-023-P, 06F-903-023N, 06F-903-023NX, 06F903023L, 06F903023LX, 305 925 140; Bosch 0 121 715 042, 0 121 715 049, 0 121 715 077, 0 121 715 142, 0 121 715 149, 0 121 715 177, 0 124 315 037, 0 124 325 141, 0 124 325 142, 0 124 325 190, 0 124 525 114, 0 124 525 146, 0 124 525 530, 0 125 711 034, 0 125 711 081, 0 125 711 088, 0 125 711 107, 0 125 711 108, 0 125 711 129, 0 125 711 130, 0 125 711 153, 0 125 711 154, 0 125 716 013, 0 125 716 014, 0 125 811 008, 0 125 811 035, 0 125 811 115, F 000 BL0 800, F 000 BL0 8A0, F 000 BL0 8J7, F 000 BL0 8J8; Original Reference Number 286818, 89214394, 9090778F, 931167; Skoda 03G-903-023F; Valeo FG20S014, FG20S016, FG20S022, FG20S025, FGN20S014, FGN20S016, FGN20S022, FGN20S025, TG11C067, TG12C278, TG14C023, TG14C034, TG14C050, TG14C067, TG14C068, TG15C149
Features & Benefits
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Precision aftermarket replacement part
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Designed to match original fit, function, and performance
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Helps reduce belt vibration and accessory drive noise
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Supports smooth alternator operation during engine acceleration and deceleration
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Manufactured for dependable long-term operation
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Ideal for alternator rebuilding and repair
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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:
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Chirping or squealing belt noise
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Excessive belt vibration
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Failing or bouncing belt tensioner
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Seized or locked pulley
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Free-spinning pulley in both directions
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Rough or noisy pulley bearing
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Premature serpentine belt wear
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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:
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.
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