(18211245377) - Exhaust Bow Clamp-1600/2002/2002tii (42mm spread) (Genuine BMW) (5 available)

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$36.04 $14.95

Description:

Exhaust Bow Clamp-1600/2002/2002tii (42mm spread) (Genuine BMW) - check the OD of your piping to make sure the 42mm clamp will fit the pipe diameter. Price is "per clamp". (gar2-Y3)

 

There are 2 different M8 exhaust "bow" clamps used to secure vintage BMW exhaust piping, they are designed for completely different chassis generations, pipe diameters, and assembly positions. The core differences between 18211245377 and 18211245517 include:

 

1. Vehicle Platform & Era

  • 18 21 1 245 377: Designed for the BMW E10 chassis (late 1960s to mid-1970s). It fits classic models like the 1602, 2002, and 2002tii.
  • 18 21 1 245 517: Designed for the successor BMW E21 3-Series platform (late 1970s to early 1980s). It explicitly targets early 320i configurations. 

 

2. Sizing and Pipe Diameter

  • 18 21 1 245 377: Features a 42mm inside width spread. This matches the narrower 42mm outer diameter (OD) tubing typical of standard factory E10 exhaust tracks.
  • 18 21 1 245 517: Features a wider inside dimension intended to loop over the broader 45mm OD factory tubing used on the E21 320i exhaust layout.

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