N52B25 Engine Overhaul Rebuild Kit -Pistons Rings/ Timing Chain Kit For BMW 325i (For: BMW)
The specifications for the BMW N52B25 (2.5L) engine overhaul kit typically include standard-size pistons (bore: 82.00 mm), piston rings (1.2 mm / 1.5 mm / 2.0 mm), 20 mm piston pins, as well as main bearings and connecting rod bearings (STD). These kits are specifically designed for the naturally aspirated engine with a displacement of 2,497 cc, which features a compression ratio of 11:1 (with certain derivative models having a ratio of 9.7:1).
Description
Engine Overhaul Kit Specifications (N52B25)
Cylinder Bore: Standard 82.00mm
Piston Pin Diameter: 20mm
Piston Ring Thickness: Top Ring: 1.2mm, Second Ring: 1.5mm, Third Ring: 2.0mm · Compression Ratio: 11:1 (Standard Version) or 9.7:1 (Low Compression Version)
Included Components: Pistons, Piston Rings, Piston Pins, Main Bearings (STD), Connecting Rod Bearings (STD), Full Gasket Set (Cylinder Head Gasket, Oil Seals, Valve Cover Gasket)
Engine Displacement: 2,497cc (2.5L) Inline-6












