Bosch AL0816N Alternator
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Bosch
 Alternator (New)

Bosch AL0816N Alternator

Brand Bosch AL0816N
Amperage Rating 120
Case Color Aluminum
Case Material Aluminum
External Fan Included Yes
External Regulator Included No
Fan Type Internal
New Or Remanufactured New
One Wire Capable No
Original Equipment Manufacturer Names BO
Outside Pulley Diameter 50
Plug Clock Rear View Main Mounting Ear at 6 O Clock 2
Plug Type 364
Product Length 7.440945 in
Pulley Groove Quantity 6
Pulley Included Yes
Pulley Type 6S
Pulley Type / Belt Type (Alternator) 6S
Regulator Type Internal
Rotation Direction Clockwise
Voltage 14
Product line Alternator (New)
Fits BMW · 21 vehicles

New alternator. Built and tested for dependable charging performance.

Aluminum case. Lightweight construction helps support durability and heat management.

Internal regulator. Integrated regulation simplifies the charging system setup.

Cross-references 12317519620 for the same application. See all 1.

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Bosch AL0816N Alternator for BMW Charging Systems

The Bosch AL0816N is a new 14-volt alternator built for BMW charging-system service where stable output and OE-style fitment matter. It is designed for 2001-2006 BMW 325Ci, 2001-2005 BMW 325i, and 2003-2005 BMW Z4 applications listed below.

Key Features

  • 14-volt alternator with 120-amp amperage rating
  • Internal regulator and internal fan design
  • Clockwise rotation
  • Aluminum case and aluminum case color
  • 6-groove pulley included, 50 mm outside pulley diameter
  • New unit from Bosch Alternator (New) line
  • Plug type 364 with rear-view plug clock at 6 o’clock

Product Details

Bosch Premium Alternators are built and tested for dependable electrical performance and consistent operation. The AL0816N follows that approach with a new construction, internal regulation, and a 6S pulley setup for BMW charging systems that require a 120-amp alternator. This Bosch AL0816N alternator is a direct-fit service part for select BMW 325Ci, BMW 325i, and BMW Z4 models, with fitment notes that include round connector, oval connector, and no cooling duct configurations where specified.

This part cross-references BMW OE part number 12317519620 for the same application.

Vehicle Fitment

  • Fits 2001-2006 BMW 325Ci, N/A, to 120 amp alternator; with round connector.
  • Fits 2001-2005 BMW 325i, N/A, to 120 amp alternator; with oval connector.
  • Fits 2005 BMW 325i, N/A, to 03/2005; to 120 amp alternator; with oval connector.
  • Fits 2005 BMW 325i, N/A, alternator without cooling duct; to 120 amp alternator.
  • Fits 2003-2005 BMW Z4, N/A, to 120 amp alternator.

Common Replacement Reasons

  • Battery warning light or charging-system fault
  • Low charging voltage at the battery
  • Dim lights or electrical accessories operating inconsistently
  • Noise from a worn alternator bearing or pulley area
  • Charging output loss on BMW 325Ci, BMW 325i, or BMW Z4 applications

Installation Notes

Verify connector style, cooling-duct configuration, and alternator amperage before installation. Confirm pulley alignment, belt routing, and clockwise rotation match the original unit. Use the vehicle’s OE mounting points and compare the existing alternator to the Bosch AL0816N before final installation.

Quality Assurance

This Bosch Premium Alternator is a new replacement unit designed, built, and tested for reliable charging performance. Bosch’s Alternator (New) line is focused on consistent electrical output and OE-style service fitment for BMW applications.

Related reading

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersPositionNotes
2006BMW325Ci—2.5LL6N/ATo 120 Amp Alternator; with Round Connector; Alternator (New)
2005BMW325Ci—2.5LL6N/ATo 120 Amp Alternator; with Round Connector; Alternator (New)
2005BMW325iWagon2.5LL6N/ATo 03/2005; To 120 Amp Alternator; with Oval Connector; Alternator (New)
2005BMW325iSedan2.5LL6N/ATo 120 Amp Alternator; with Oval Connector; Alternator (New)
2005BMW325iWagon2.5LL6N/AAlternator without cooling duct; To 120 Amp Alternator; Alternator (New)
2005BMWZ4—2.5LL6N/ATo 120 Amp Alternator; Alternator (New)
2005BMWZ4—3.0LL6N/ATo 120 Amp Alternator; Alternator (New)
2004BMW325Ci—2.5LL6N/ATo 120 Amp Alternator; with Round Connector; Alternator (New)
2004BMW325iSedan2.5LL6N/ATo 120 Amp Alternator; with Oval Connector; Alternator (New)
2004BMW325i—2.5LL6N/ATo 120 Amp Alternator; with Oval Connector; Alternator (New)
2004BMWZ4—2.5LL6N/ATo 120 Amp Alternator; Alternator (New)
2004BMWZ4—3.0LL6N/ATo 120 Amp Alternator; Alternator (New)
2003BMW325Ci—2.5LL6N/ATo 120 Amp Alternator; with Round Connector; Alternator (New)
2003BMW325i—2.5LL6N/ATo 120 Amp Alternator; with Oval Connector; Alternator (New)
2003BMW325iSedan2.5LL6N/ATo 120 Amp Alternator; with Oval Connector; Alternator (New)
2003BMWZ4—2.5LL6N/ATo 120 Amp Alternator; Alternator (New)
2003BMWZ4—3.0LL6N/ATo 120 Amp Alternator; Alternator (New)
2002BMW325Ci—2.5LL6N/ATo 120 Amp Alternator; with Round Connector; Alternator (New)
2002BMW325i—2.5LL6N/ATo 120 Amp Alternator; with Oval Connector; Alternator (New)
2001BMW325Ci—2.5LL6N/ATo 120 Amp Alternator; with Round Connector; Alternator (New)
2001BMW325i—2.5LL6N/ATo 120 Amp Alternator; with Oval Connector; Alternator (New)
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
12317519620