Stable control of oil: Through the oil scraping edge structure, the excess oil on the cylinder wall can be scraped back to the oil bottom shell. At the same time, it avoids the oil from entering the combustion chamber to participate in combustion, and effectively prevents carbon accumulation and excessive oil consumption.
Auxiliary heat dissipation: Part of the heat generated by combustion at the top of the piston can be transferred to the cylinder block through contact with the cylinder wall, and then taken away by the cooling system to help the piston maintain a reasonable working temperature and extend the service life.
Improve wear resistance and temperature resistance: Made of high-quality alloy materials, with excellent high-temperature resistance and wear resistance, it can adapt to the complex working conditions inside the engine and reduce the risk of failure caused by daily wear.
High-efficiency sealed gas: It can closely fit the cylinder wall and the piston, prevent the leakage of high-temperature and high-pressure gas into the crankcase in the combustion chamber to the greatest extent, ensure the efficiency of engine power output, reduce energy loss, and greatly reduce fuel consumption by more than 40%.
Pistons & Rings Set Φ82mm CR11:1 OE11259468870 Compatible For BMW B46 B48 2.0T F20 520i MINI Cooper S F54 F56 F57 F60
وصف
OE#
11 25 9 468 870
Replacement OE#
11 25 8 638 448
11 25 8 618 502
11 25 8 657 760
11 25 8 623 260
Description
STD 0.00 spec (no fit cylinder expand)
- Cylinder bore 82.00mm
- Wrist Diameter 22mm
- Compression ratio 11:1
- Ring thickness 1st 1.2mm / 2nd 1.5mm / 3rd 2.0mm
- Compatible For BMW B46B20 / B48B20A 2.0 (1998cc) Turbocharged
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