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Overhaul Rebuild Pistons Seals Kit 11:1 For BMW 323i 525i Z4 X3 E60 523i N52 2.5L Engine
- Regular price
- $ 626
✅ Fast & Free Delivery in Most Countries
(Excludes remote islands)
✅ Premium Aftermarket Parts – In Stock
✅ Bulk Discounts Available – Contact Us
- Regular price
- $ 626
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
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
Package includes
Pistons & rings x1set
Overhaul gakset x1set
Main & Con rod bearing 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
Key Features:
- Direct-fit replacement: No modification required for installation.
- Stable operation: Ensures consistent performance under standard conditions.
- Heavy-duty design: Engineered to support reliable service life.
- Maintenance solution: Practical replacement part for equipment repair.
Frequently Asked Questions
Q1: How can I be sure this part is compatible with my machine?
Q2: When will my order be shipped?
Q3: How long does delivery take to my country?
- United States: 3 - 10 Business Days
- European Union: 5 - 12 Business Days
- Canada / UK / AU: 5 - 15 Business Days
- Rest of World: 7 - 20 Business Days
Q4: What is the Warranty and Return Policy?
Q5: What should I consider before installation?
Q6: Need Fitment Verification?
Avoid costly downtime! Send us your Machine Serial Number (VIN) or a photo of your Old Part's Nameplate. Our engineers will verify the fitment for you within 24 hours.
Verify My Part Now →Why Choose BeeSpareParts?
OEM Standard Compatibility
All components are designed to meet original equipment standards, ensuring a reliable fit and proper function as a direct replacement for your machinery.
Rigorous Quality Inspection
Each part undergoes a series of quality checks before being added to our inventory, minimizing the risk of defects and ensuring steady performance.
6-Month Support Warranty
We provide a straightforward 6-month warranty. If any issues arise within the warranty period, our technical team is here to provide efficient solutions.
2-3 Business Day Processing
We prioritize order accuracy. Most in-stock items are processed and dispatched within 2-3 business days with reliable international carriers.
Need help with Part Identification? Contact us at: info@beespareparts.com
Flexible Payment Options
Shop securely using PayPal, VISA, MasterCard, and other secure payment ways at checkout. Your financial information is encrypted and never stored.
Easy Return Policy
Received a damaged or incorrect part? No worries. We offer a 30-day return window for unused parts in original packaging. We prioritize your satisfaction.
Real Part Photos
What you see is what you get. Most of our product photos are taken in our own warehouse, reflecting the actual quality of the components.
Human Expert Support
No chatbots. Talk to real parts specialists via WhatsApp or Email. We provide technical answers, not just automated replies.
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