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Supplementary article/info 2	requires special tools for mounting
For manufacturer number	f-581916.xx
Number of grooves	5
Svhc	no svhc present!
Distance to first groove (mm)	13.4

Product number: 535 0278 10

Ina Overrunning Alternator Clutch Pulley For Alfa Romeo Fiat Jeep Opel Vauxhall 500 500 C

Out of stock

Price incl. vat.

£ 29,03

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Description

INA Belt Drive Technology

Overrunning Alternator Pulley (OAP)

The INA OAP uses a one-way clutch so the alternator can “free-wheel” during sudden belt deceleration. This calms belt vibration, reduces noise at shut-down/gear changes, and protects the tensioner and belt for longer life.

Lower NVH Stabilised FEAD OE-grade reliability

INA Overrunning Alternator Pulley main view

What It Does

One-way clutch: allows the alternator rotor to coast when the belt slows suddenly (overrun), reducing belt snap and chirp.
Smoother accessory drive: helps the tensioner work within its normal range and limits oscillation.
Longer component life: less stress on belt, tensioner, alternator bearings, and other FEAD parts.

When to Replace

Chirping at engine shut-down or during shifts; rumble/squeal from alternator area.
Tensioner arm “flutters” or sits off-center at idle; belt tracking issues.
Alternator charging faults due to belt slip or pulley clutch seizure.
Excessive play/roughness when the pulley is checked off-vehicle.

Important: Fit the same type the vehicle was built with. Don’t swap an OAP for an OAD (decoupler) or a solid pulley — they are not interchangeable.

How to Fit (Universal Guide)

Preparation: Engine cold, battery disconnected. Photograph belt routing. Remove the FEAD belt.
Lock the rotor: Use the correct alternator holding tool (insert in the rotor shaft) and a matching OAP removal socket for the pulley splines/hex.
Remove old pulley: Hold the rotor steady; loosen the pulley in the correct direction (usually standard thread, but verify OE info). Remove any dust cap/shroud.
Check & clean: Inspect alternator shaft and threads; clean and lightly degrease. Do not grease the belt or pulley grooves.
Install new INA OAP: Thread on by hand to avoid cross-threading. Hold rotor and torque the pulley to the manufacturer’s spec. Refit the protective cap.
Refit belt & test: Route belt, ensure all ribs seat. Start engine, watch tensioner movement, listen for noise, and confirm charging performance.

Always follow the exact torque values and procedures in the workshop manual. Use the proper INA/REPXPERT special tools to avoid alternator damage.

Quick Function Check (Off-Vehicle)

Pulley should rotate freely in the overrun direction and lock in the drive direction.
Any grinding, binding, or free-wheeling both ways = replace.

Manufacturer	Productnumber
alfa romeo	55257677
fiat	51922437
fiat	51927506
fiat	51984063
fiat	51984064
fiat	51984065
fiat	52003621
fiat	52067420
fiat	52067421
fiat	52083380
fiat	52137908
fiat	55257677
opel	12 02 373 , 1202373
opel	12 02 374 , 1202374
opel	12 02 472 , 1202472
opel	12 02 473 , 1202473
opel	1202373
opel	1202374
opel	1202472
opel	1202473
opel	95527248
vauxhall	12 02 373 , 1202373
vauxhall	12 02 374 , 1202374
vauxhall	12 02 472 , 1202472
vauxhall	12 02 473 , 1202473
vauxhall	1202373
vauxhall	1202374
vauxhall	1202472
vauxhall	1202473
vauxhall	95527248
general motors	13520812
general motors	13585664
general motors	13585666
general motors	95519907
general motors	95519908

Usage numbers
AUTEX 655161
CONTINENTAL CTAM AP9104
DENSO 104211-3250
DENSO 104211-3260
DENSO 104211-3590
DENSO 104211-3591
DENSO 104211-4031
DENSO 104211-4040
DENSO 104211-4820
DENSO 104211-7130
DENSO 104211-8830
DENSO 104211-9230
DENSO 1042113250
DENSO 1042113260
DENSO 1042113590
DENSO 1042113591
DENSO 1042114031
DENSO 1042114040
DENSO 1042114820
DENSO 1042117130
DENSO 1042118830
DENSO 1042119230
DENSO 121041-2050
DENSO 121041-2370
DENSO 1210412050
DENSO 1210412370
GATES OAP7261
IPD 15-4156
IPD 154156
RUVILLE 56045
SCHAEFFLER GRUPPE 535 0278 10
SCHAEFFLER GRUPPE 535027810
Schaeffler INA F-581916
Schaeffler INA F-581916.02
Schaeffler INA F-581916.03
Schaeffler INA F-581916.04
Schaeffler INA F-581916.05
Schaeffler INA F581916
Schaeffler INA F58191602
Schaeffler INA F58191603
Schaeffler INA F58191604
Schaeffler INA F58191605
TRIPLE FIVE 03.82030
TRIPLE FIVE 0382030
ZEN 5706

Manufacturer	Model	Version	Engine code	Construction type	Construction start	Construction end	Pk	Power kw
alfa romeo
fiat
jeep
opel

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