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Piston Kit — BMW B38 1.2T 3-Cylinder
Piston Kit — BMW B38 1.2T 3-Cylinder
Piston Kit — BMW B38 1.2T 3-Cylinder
Piston Kit — BMW B38 1.2T 3-Cylinder
Piston Kit — BMW B38 1.2T 3-Cylinder
  1. Piston Kit — BMW B38 1.2T 3-Cylinder
  2. Piston Kit — BMW B38 1.2T 3-Cylinder
  3. Piston Kit — BMW B38 1.2T 3-Cylinder
  4. Piston Kit — BMW B38 1.2T 3-Cylinder
  5. Piston Kit — BMW B38 1.2T 3-Cylinder

Piston and Piston Ring Set for BMW MINI Cooper 118i (B38A15) / Mini Cooper (B38) 1.5T/1.2T 3-Cylinder Engines

The BMW B38 1.2L (B38A12U0) three-cylinder engine utilizes pistons with a bore of 78 mm and a compression ratio of 11:1. Common piston kits designed for this turbocharged engine typically include 22 mm piston pins, as well as piston ring sets with specifications of 1.2 mm (top ring), 1.5 mm (second ring), and 2.0 mm (oil ring).

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Description

Key Specifications (B38 1.2L/1.5L):
Bore: 78 mm (1.2L) / 82 mm (1.5L). Note: In product listings, parts for the 1.2T and 1.5T variants are often grouped under similar OE part numbers; please ensure you verify that the bore size corresponding to the 1.2T model is 78 mm.
Compression Ratio: 11:1
Piston Pin Diameter: 22 mm.
Piston Ring Thickness: Top Ring: 1.2 mm / Second Ring: 1.5 mm / Oil Ring: 2.0 mm.
Engine Type: 3-Cylinder, Direct Injection, Turbocharged.
Common Piston Assembly Part Numbers (OE): 11258657760, 11258637989, 11259468870.

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