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Piston Kit for BMW N52B25 (11257612982)
Piston Kit for BMW N52B25 (11257612982)
Piston Kit for BMW N52B25 (11257612982)
Piston Kit for BMW N52B25 (11257612982)
Piston Kit for BMW N52B25 (11257612982)
  1. Piston Kit for BMW N52B25 (11257612982)
  2. Piston Kit for BMW N52B25 (11257612982)
  3. Piston Kit for BMW N52B25 (11257612982)
  4. Piston Kit for BMW N52B25 (11257612982)
  5. Piston Kit for BMW N52B25 (11257612982)

Piston Kit Φ82mm for BMW 323i, 325i, 523i, 525i, X3, Z4 (N52B25 2.5L) — (Fits: BMW) OE：11257612982

BMW N52B25 piston kits typically feature an 82.0 mm bore, a 79.0 mm stroke, and a 20 mm piston pin diameter, designed to achieve a compression ratio of 10.7:1 or 11.0:1. These pistons are suitable for the 2.5L inline-six (I6) engine and are typically equipped with piston rings sized at 1.2/1.5/2.0 mm, specifically engineered for magnesium-aluminum alloy engine blocks.

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Description

Piston Kit Key Specifications:
Bore: 82.00 mm (STD)
Stroke: 79.0 mm
Compression Ratio: 11.0:1 or 10.7:1
Piston Pin Diameter: 20 mm
Piston Pin Length: 46 mm
Piston Ring Thickness: Top Ring: 1.2 mm, Second Ring: 1.5 mm, Oil Ring: 2.0 mm
Piston Ring End Gap: Top Ring: 0.180–0.330 mm, Second Ring: 0.300–0.500 mm
Piston Material: ZL109 Aluminum Alloy
Engine Compatibility: N52B25 (E90, E60, Z4, E83, E84, E87)

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