Engine Rebuilding Pistons Gasket Seals Bearings Set For BMW E60 E61 E90 E92 E93 E83 E84 E85 E86 E89
323i 325i 523i 525i X3 Z4 2.5L L6 Naturally aspirated N52B25

Compression ratio 11:1

Please send VIN number to us before order

Pistons & Rings OE#
11 25 7 612 982
11 25 7 561 848
11 25 7 561 844
11 25 7 542 057
KOLBENSCHMIDT: 40407600 / 40444600

Pistons & Rings Spec
– STD 0.00 spec (no fit cylinder expand)
– Cylinder bore Φ82.00mm
– Wrist Diameter Φ20mm
– Wrist Length 46mm
– Ring thickness 1st 1.2mm / 2nd 1.5mm / 3rd 2.0mm
– Compression ratio 11:1
– Fit N52B25 2.5 L6 (2497cc) Naturally aspirated Engine

Bearing Shell OE#
11 24 7 576 714
11 24 7 628 034
11 24 7 576 715
11 24 7 576 717
11 24 7 628 035
11 24 7 552 063
11 21 7 627 037
11 21 7 581 009
11 21 7 627 031
11 21 7 627 027
11 21 7 627 033

Seals & Gasket Kit OE#
11 12 7 555 310
11 12 7 555 311
11 13 7 548 031
11 12 7 581 215
11 34 0 032 582
11 34 0 034 068
11 12 7 548 799
VICTOR REINZ: 61-35535-00
VICTOR REINZ: 71-38669-00
VICTOR REINZ: 15-37289-01
ELRING: 512.270
ELRING: 545.840
ELRING: 534.310

Package includes
Pistons & rings x1set
Overhaul gakset x1set
Main & Con rod bearing x1set
Head bolt x1set

Fit Car Model

Brand & Model Produce Year Fit Engine
BMW
N52B25 / Compression ratio 11:1
323i (EU&US) 2005-2011 E90 E91
325i / 325xi (EU&US) 2005-2013 E90 E91 E92 E93
523i (EU) 2005-2011 E60 E61 F10 F11
525i / 525xi (EU&US) 2005-2010 E60 E61
X1 xDrive25i (EU&US) 2009-2012 E84
X3 2.5si (EU) 2006-2010 E83
Z4 2.5i / 2.5si (EU) 2004-2008 E85
Z4 sDrive23i (EU&US) 2008-2011 E89