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Piston Kit for BMW N16B16A (11257576975)
Piston Kit for BMW N16B16A (11257576975)
Piston Kit for BMW N16B16A (11257576975)
Piston Kit for BMW N16B16A (11257576975)
Piston Kit for BMW N16B16A (11257576975)
Piston Kit for BMW N16B16A (11257576975)
Piston Kit for BMW N16B16A (11257576975)
  1. Piston Kit for BMW N16B16A (11257576975)
  2. Piston Kit for BMW N16B16A (11257576975)
  3. Piston Kit for BMW N16B16A (11257576975)
  4. Piston Kit for BMW N16B16A (11257576975)
  5. Piston Kit for BMW N16B16A (11257576975)
  6. Piston Kit for BMW N16B16A (11257576975)
  7. Piston Kit for BMW N16B16A (11257576975)

MINI N16 Piston with Piston Rings — 1.6L (R56, R55, R57) — Engine N16B16A — 11257576975

The BMW N16B16A Piston Kit is specifically designed for the 1.6L (1598cc) naturally aspirated engine. Its key specifications include a standard bore of 77mm, a compression ratio of 11:1, and a piston pin diameter of 18mm. The kit typically includes piston rings (with thickness specifications of 1.2mm/1.5mm/2.0mm) and is compatible with the MINI Cooper R55–R61 series models.

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Description

Engine Models: BMW N16B16A / N12B16A (1.6L DOHC 16-Valve)
Bore Diameter: Standard 77.00mm (Optional +0.50 oversize: 77.50mm)
Piston Pin Diameter: 18mm
Compression Ratio: 11:1
Piston Ring Thickness: Top Ring 1.2mm / Second Ring 1.5mm / Oil Ring 2.0mm
Compression Height: Approx. 27.5mm (Specific values ​​may vary by manufacturer)
Material & Process: ZL109 Aluminum Alloy; typically features anodized treatment on the top and second ring grooves.

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