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The Bosch AL0170X is a 140-amp, 12-volt remanufactured-style alternator with an internal fan and a foot-mounted aluminum case. It is a high-output replacement aimed at cars, trucks and SUVs that need more charging capacity than a stock unit, and it is listed for Volkswagen applications. Bosch is a major OEM supplier, so the unit is a known quantity against generic rebuilds, but fitment is not truly universal and the buyer must match the mounting and pulley to the original. Owners of high-output Bosch alternators generally report solid charging and long service, with complaints centered on fitment surprises and occasional bearing noise.
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Lowest price we've seen: $537.50 on Nov 11 at Walmart. Tracked across 1 store since Nov 11.
Feedback on Bosch high-output alternators is mostly positive on charging performance and durability, with recurring complaints about fitment and noise.
The Bosch AL0170X is a 12-volt alternator rated at 140 amps. It is sold as a Bosch Premium Alternator and has an aluminum case, an internal fan and negative ground.
It is foot-mounted with a short mounting configuration and turns clockwise. The listing gives Volkswagen as the car brand and lists cars, trucks, sport utility vehicles and CUVs as vehicle types. Use the fit tool on the page to check that it fits your vehicle.
