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Genuine BMW 12-31-1-312-137 Alternator Adjustment Bracket

(1988-1991 BMW M3; 1984-1985 BMW 318i)

Manufacturer

Picture for manufacturer Genuine BMW

Part Number

12-31-1-312-137
14 reviews
Sale Price

$107.76

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Genuine BMW 12-31-1-312-137 Alternator Adjustment Bracket is a factory original equipment component designed to mount and secure the alternator while allowing for precise belt tension adjustment. This critical bracket ensures proper alternator positioning and maintains optimal accessory belt tension for reliable charging system performance.

Key Features:

  • Genuine BMW OEM part manufactured to factory specifications
  • Essential component for alternator mounting and accessory belt tensioning
  • Designed specifically for BMW M20 engine applications
  • Durable construction to withstand engine vibration and thermal cycling
  • Direct replacement for worn, corroded, or stripped brackets

Over time, alternator adjustment brackets can become corroded or the adjustment teeth can become stripped, making it difficult or impossible to properly tension the accessory belt. This genuine BMW replacement bracket ensures proper fit and long-lasting durability. When performing alternator service or belt replacement, inspect this bracket for wear and replace if necessary to maintain proper charging system function.

OEM Part Number: 12311312137 (supersedes 12311284312)

Products specifications

Fits

1988-1991 BMW M3; 1984-1985 BMW 318i

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I placed an order 12/5/11 and recieved my order before 10am the following day. Very fast, very easy to use and the best prices I've found on line.

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