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Genuine BMW 12311735915 Alternator Cooling Air Duct E36 3 Series

(1996-1999 BMW 328i; 1995-1999 BMW M3; 1992-1995 BMW 325i; 1998-1999 BMW 323i; 1992-1998 BMW 318i; 1992-1995 BMW 325is; 1992-1997 BMW 318is + 2 more models)

Manufacturer

Picture for manufacturer Genuine BMW

Part Number

12311735915
5 reviews
Sale Price

$90.94

3 left at this price

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Usually delivered within 2 days

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Product Details

The Genuine BMW 12311735915 is a factory-original alternator cooling air duct designed for the BMW E36 3 Series platform. This molded rubber duct routes cold air from the front bumper intake scoop directly to the alternator, preventing heat buildup and protecting the charging system from overheating under sustained driving conditions.

Key Features:

  • Genuine BMW OEM part — manufactured to exact factory specifications for fit, form, and function
  • Channels cool fresh air from the front bumper inlet to the alternator housing
  • Constructed from durable, heat-resistant rubber designed to withstand underhood temperatures
  • Direct bolt-on replacement requiring no modifications
  • Replaces cracked, hardened, or collapsed original ducts that restrict airflow to the alternator
  • OEM part number: 12 31 1 735 915 | Cross-reference: 1735915

Over time, the original alternator air duct can crack or collapse due to heat cycling and age, reducing cooling airflow to the alternator and potentially shortening its service life. Replacing this duct with a Genuine BMW unit restores proper thermal management to the charging system and helps ensure long-term alternator reliability.

Products specifications

Fits

1996-1999 BMW 328i; 1995-1999 BMW M3; 1992-1995 BMW 325i; 1998-1999 BMW 323i; 1992-1998 BMW 318i; 1992-1995 BMW 325is; 1992-1997 BMW 318is; 1996-1999 BMW 328is; 1998-1999 BMW 323is

It has been interesting not very many parts for 1970 VW bug

Very quick and easy

Exactly what I ordered for the best price and fast, too!

Im very satisfied with how fast i received my product from Autoplicity! The whole process was hassle free. If you looking for quality product for a great price than i would recommend Autoplicity!

Fantastic site! Received exactly what I ordered in a very timely manner. Customer service is outstanding, will be doing business again!

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