Got a Valeo alternator on my car which is looking like it has failed. Found out through TPS that Valeo and Bosch were OEM options.

Could I replace my Valeo with a Bosch option?

I'm assuming only 1 option for the ribbed belt is available so only thing I can think that may be different is the pulley diameter. But surely the tensioner will make adjustments for any size difference?

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Pulley is a standard size.  Certainly when I replaced mine, I didn't know what alternator I had fitted (when I ordered it)

I just replaced the old crap Valeo alternator with a propper Bosch wich is much stronger and reliable.

Is a direct swap with no mods needed.

Cheers for the replies.

Alternator was bench tested today and the rotor circuit is open hence why I wasn't getting any charge to the battery.

Ordered a Bosch unit from TPS. The assistant there noted the pulley's didn't come with it so I've had the existing one taken off ready to be fitted to the replacement unit.

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You'll need a special tool to remove the pulley, might be worth ordering a new pulley as the tend to be a PITA to remove.

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Depending on the age/mileage of the pulley you might be better off investing in a new one.  Mine failed around the 180k mark, iirc.  Not sure if you are driving a diesel or not, as they have a free-wheel mechanism, which I don't believe the petrols have/need.

The firm who bench tested my alternator, removed, and will be refitting the pulley for me.

Car has 86k and is a petrol.

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The firm who bench tested my alternator, removed, and will be refitting the pulley for me.

Car has 86k and is a petrol.

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Result