Reviews of Bosch alternator pulley

PR Score ?

To calculate the score

missing 8 reviews

6 votes

Average rating ?

4.5

Noise:

1.0

2 reviews

Description

Bosch

Germany

Share on social networks:

Part:

Back

Manufacturer:

Back

Make:

Back

Model:

Back

Generation:

Review tone

Positive Negative Neutral

Reviews found: 0

Reviews

Relevant

New

Helpful

Bosch › Alternator pulley

mellofello9 26 Aug 2011, 15:31

Rating 4.0

Noise:

I got the bosch alternator pulley kit from ECS that seems pretty complete so am hoping I am good on that front: As to why I have to replace the pulley, the pulley on these alternators is clutched and said clutch goes bad. Symptom being a perfectly fine charging voltage but a chattery sound tied to the alternator light flashing on the cluster. Did a ton of research on here trying to diagnose and this is what I've come-up with as a starting point.

Pros: complete kit, cheap endeavor

Cons: clutch goes bad, chattery sound

Bosch › Alternator pulley

Eric D 15 Jan 2010, 02:57

Rating 5.0

A Bosch alternator doesn't care which Bosch pulley it uses, be it a 70A, 90A, 120A or 150A. The shaft is the same 17mm OD for all of them. What matters is that the pulley matches your belt and application.

Pros: pulley matches belt

Vehicle: Volkswagen

Part number: 021 903 119 D

Write your review about alternator pulley Bosch

Help others - share your experience with this part.

Other alternator pulley

OEM Volkswagen: Alternator pulley

Avg. rating

3.8

5 reviews

INA: Alternator pulley

Avg. rating

4.5

2 reviews

OEM Toyota: Alternator pulley

Avg. rating

2.0

1 review

LOCTITE: Alternator pulley

Avg. rating

5.0

1 review

Popular spare parts Bosch

Voted AGAINST engine oil RAVENOL on the rating page

The brake pads Motorcraft has only 4 reviews. Maybe add one more?

The brake fluid OEM Subaru has only 2 reviews. Maybe add one more?

The brake pads Detroit Axle has only 8 reviews. Maybe add one more?

The brake pads OEM Alfa Romeo got the first review!

The brake caliper OEM BMW got the first review!

The brake pads OEM Infiniti got the first review!

For wiper blades PIAA already 100 reviews.

For battery Energizer already 25 reviews.

In the rating best water pump already 12 brands participate!

In the rating best timing belt already 13 brands participate!

In the rating best head gasket already 3 brands participate!

In the auto rating oil filter for Volkswagen Passat already 5 brands participate!

In the auto rating brake pads for Mazda 5 already 10 brands participate!

In the auto rating tires for Subaru Outback already 50 brands participate!

The glow plug Autolite has only 10 votes! Recommend it?

The fender OEM Volkswagen has only 10 votes! Recommend it?

The brake discs Tesla has only 10 votes! Recommend it?

For cabin filter Fram already 25 reviews.

In the rating best flywheel only 4 brands. Do you know another one?

The brake pads OEM Subaru already has 250 votes!

The engine oil AMSOIL already has 1000 votes!

In the rating best CVT transmission only 4 brands. Do you know another one?

The engine radiator MISHIMOTO already has 300 votes!

Voted AGAINST engine oil RED LINE on the rating page

Voted AGAINST engine oil PENNZOIL on the rating page

What we know about Bosch alternator pulley

The brand is registered in Germany.

In March 2026, PartReview does not yet have a formed opinion of Bosch alternator pulley. You can help by adding a review for Bosch alternator pulley.

Currently there are 2 reviews and 6 votes. Average rating — 4.5 out of 5. Vote balance: 6 up, 0 down.

Users also evaluated the qualities of Bosch alternator pulley:

Noise - less belt squeal or chirp from the alternator area - rated negatively. 1 point out of 5.
Wobble - pulley runs true without visible shake - no rating yet
Vibration - idle feels smoother when the pulley runs straight - no rating yet

Alternator pulley Bosch in car-specific ratings

Unfortunately, there are no car-specific ratings for this part yet. You can help by adding a review and specifying your car.