Fit for engine code: Fit N52B25 2.5L L6 (2497cc) Naturally aspirated engine / Compression ratio 11:1
Specification
- STD 0.00 spec (no fit cylinder expand)
- Cylinder bore Φ82.00mm
- Wrist Diameter Φ20mm
- Wrist Length 46mm
- Ring thickness 1.2mm 1.5mm 2.0mm

Description:
Item Type: Piston Set
Condition: Brand New
Warranty: 2 Years
Package Size: 34.5*23.5*8.5CM
Package Weight: 2.5Kg/5.51Lb
Package Type: Box

OE Number: 11257612982
Replacement Number: 11257561844
RACEORLY Number: I04001004
Package Included: 1 * Piston Set
RACEORLY upgraded piston features an enhanced piston ring design. Completely solved oil consumption burn problem .
The first gas ring is made by a chrome ceramic coated galvanized steel, and the second one is made of ductile iron. This combination significantly improves sealing, reduces gas leakage, lowers the working temperature of piston rings, and decreases the risks of thermal deformation and fatigue.
The third oil ring is upgraded with a split design. The split piston ring has multiple advantages. It can cut friction loss, reduce the frictional force with the cylinder wall via proper contact pressure distribution, enhance mechanical efficiency and save fuel. It can strengthen sealing, adapt to the irregularity of the cylinder wall with its multi-ring structure, stabilize power output and contribute to environmental protection. It can effectively control oil, scrape off excess oil with its special design, reduce oil consumption and carbon deposit risks. It can also boost the durability of piston rings, make the load distribution reasonable among ring pieces, extend the maintenance cycle, cut user's maintenance cost and vehicle maintenance frequency, and ensure the efficient and stable operation of the engine.