Bosch
Alternator (Remanufactured)

Bosch AL28X Alternator

Brand Bosch AL28X
Amperage Rating 65
Case Color Aluminum
Case Material Aluminum
External Fan Included Yes
External Regulator Included Yes
Fan Type External
New Or Remanufactured Remanufactured
One Wire Capable No
Original Equipment Manufacturer Names MO
Outside Pulley Diameter 69
Packaging Box
Plug Clock Rear View Main Mounting Ear at 6 O Clock 9
Plug Type 110
Pulley Groove Quantity 1
Pulley Included Yes
Pulley Type 1V
Pulley Type / Belt Type (Alternator) 1V
Regulator Type Internal
Rotation Direction Clockwise
Voltage 12
Product line Alternator (Remanufactured)
Fits Audi and Volkswagen · 8 vehicles

Remanufactured unit. A Bosch alternator rebuilt for dependable charging performance.

Aluminum case. Lightweight construction helps resist corrosion and heat.

Includes pulley. Ready for a straightforward replacement with key components supplied.

Cross-references 049903017A and 049903023TX for the same application. See all 2.

$174.00Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $174.00
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Bosch AL28X Remanufactured Alternator

The Bosch AL28X is a remanufactured 12-volt alternator built for charging-system service on select Audi and Volkswagen applications. It is configured with a 65-amp output, external fan, included pulley, and clockwise rotation for direct-fit replacement use where the original unit matches these specifications.

Key Features

  • Remanufactured Bosch alternator for charging-system replacement
  • 12-volt design with 65-amp amperage rating
  • External fan included for cooling support
  • Pulley included with 1-groove, 1V belt type
  • Clockwise rotation with internal regulator
  • Aluminum case and aluminum case color
  • Plug type 110 with rear-view plug clock at 6 o'clock
  • External regulator included

Product Details

Bosch Premium Alternators are remanufactured, built, and tested to deliver consistent electrical performance and dependable operation. The AL28X follows the original equipment style for select Volkswagen Jetta, Volkswagen Quantum, Volkswagen Cabriolet, Volkswagen Rabbit Convertible, and Audi 4000 applications, including vehicles without air conditioning and specific 55-amp or lower-output alternator setups noted in the fitment data. This part cross-references 049903017A and 049903023TX for the same application.

What This Alternator Helps Address

  • Battery warning light caused by alternator output loss
  • Weak charging performance at idle or under electrical load
  • Dim lights or fluctuating electrical system voltage
  • Charging-system failure from worn internal components
  • Replacement needs on select Audi and Volkswagen models with matching specifications

Installation Notes and Tips

Verify pulley style, plug type, rotation direction, amperage rating, and mounting-ear clock position before installation. This AL28X is listed for 1985 Audi 4000, 1985 Volkswagen Cabriolet, 1984-1985 Volkswagen Jetta, 1984-1985 Volkswagen Quantum, and 1984 Volkswagen Rabbit Convertible, with notes for vehicles without air conditioning and certain 55-amp alternator applications. Confirm the original unit matches the vehicle’s charging-system configuration before replacement.

Quality Assurance

Bosch remanufactured alternators are produced and tested to meet application-specific performance requirements for charging-system service. The AL28X is packaged in a box and built as a remanufactured replacement part for direct-fit use on the listed Audi and Volkswagen applications.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1985Audi40001.8LL4N/ATo 55 Amp Alternator; Alternator (Remanufactured)
1985VolkswagenCabriolet1.8LL4N/Awithout Air Conditioning; Alternator (Remanufactured)
1985VolkswagenJetta1.8LL4N/Awithout Air Conditioning; Alternator (Remanufactured)
1985VolkswagenJetta1.8LL4N/ATo 55 Amp Alternator; without Air Conditioning; Alternator (Remanufactured)
1985VolkswagenQuantum1.8LL4N/Awithout Air Conditioning; Alternator (Remanufactured)
1984VolkswagenJetta1.8LL4N/Awithout Air Conditioning; Alternator (Remanufactured)
1984VolkswagenQuantum1.8LL4N/Awithout Air Conditioning; Alternator (Remanufactured)
1984VolkswagenRabbit Convertible1.8LL4N/Awithout Air Conditioning; Alternator (Remanufactured)
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
049903017A049903023TX