Description
Store Categories Cylinder block assembly Engine gasket kit Timing chain Kit Cooling system Engine accessory Fuel Injector Connecting Rod Fuel Pump Oil Cooler Ignition Coil Water Pump Oil Pan Intake Manifold Valve Piston Set RACEORLY Pistons Rings STD Low Compression 9.7:1 For BMW E60 E90 325i 523i N52B25 Fit for engine code: Fit N52B25 2.5L L6 (2497cc) Naturally aspirated engine Low Compression 9.7:1 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 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. Decription: Item Type: Piston Set Condition: Brand New Warranty: 2 Years Package Size: 34.5*23.5*8.5CM Package Weight: 2.4Kg/5.29Lb Package Type: Box OE Number: 11257561850 Replacement Number: 11257560374 RACEORLY Number: I04001005 Package Included: 1 * piston set Please note that the fitment chart provided by eBay is not 100% accurate. Our part number is correct. If you are not sure whether it is suitable for your car, please send me your frame number and we will check it for you. Engine Code: N52B25A N52B25BE N52B25BF Fit Car ModelBrand & Model Brand&Model Year Fit Engine Code BMW 323i 2005-2011 E90 E91 E92 E93 N52B25A N52B25BF 325i / 325xi 2006-2011 E90 E91 E92 E93 523i 2005-2011 F10 N52B25A 525i / 525xi 2005-2010 E60 E61 X1 2009-2012 E84 X3 2006-2010 E83 N52B25BF Z4 2006-2011 E85 E89 N52B25A WARRANTY Raceorly offers a 2-year unlimited mileage warranty. It is warranted to be free from defects in workmanship and materials under normal use for the entire warranty period from the date of purchase. Any product that has been damaged, misused, or improperly installed will not be replaced. We always recommend professional installation of our products. The buyer assumes the risk of damage caused by improper installation. Shipping Payment Return Connect Us About Us Shipping 1.It usually takes 1-2 days to process an order. We only ship to the lower 48 states of the United States. We do not ship to FPO, APO, or PO Box addresses. 2.We ship to your order address. Please make sure your eBay and Paypal addresses are correct before paying for your order,no changes are allowed once the order is shipped. 3.Items will be shipped from our US warehouse. All items are brand new and packed in cartons. Extra packing materials will help you greatly reduce the risk of damage during shipping. Payment We accept all forms of payment permitted within the ebay Managed Payments checkout program, PayPal, Visa, Mastercard, American Express and Discover. We hope you can complete the payment as soon as possible so that we can ship the goods to you as soon as possible.Thanks for your business Return 1.30 Days Return and Money Back.The return shipping fee is borne by the seller. The items installed are not allowed to be returned unless there is quality problem 2. Please be sure to contact us for the return address before returning. Otherwise, we will not be able to receive your return. 3.All returned items must be well packed in original condition and contain all the items originally provided. Connect Us 1.We are a complete provider of automotive parts replacement in the aftermarket. 2.Note: Email inquiries will be answered within 24 hours during regular business hours (Except Holidays). All inquiries received outside business hours will be answered the next business day. We appreciate your patience and thank you for your business. About Us Raceorly is a leading company focusing on engine series for Volkswagen,Audi,Mercedes-Benz,BMW,Porsche, Land Rover,etc.Today,we have nearly 50 employees.We are committed to meeting customers'needs for engine performance and reliability,while pursuing excellent quality and providing professional services. RACEORLY Pistons Rings STD Low Compression 9.7:1 For BMW E60 E90 325i 523i N52B25 Fit for engine code: Fit N52B25 2.5L L6 (2497cc) Naturally aspirated engine Low Compression 9.7:1 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 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. Decription: Item Type: Piston Set Condition: Brand New Warranty: 2 Years Package Size: 34.5*23.5*8.5CM Package Weight: 2.4Kg/5.29Lb Package Type: Box OE Number: 11257561850 Replacement Number: 11257560374 RACEORLY Number: I04001005 Package Included: 1 * piston set Please note that the fitment chart provided by eBay is not 100% accurate. Our part number is correct. If you are not sure whether it is suitable for your car, please send me your frame number and we will check it for you. Engine Code: N52B25A N52B25BE N52B25BF Fit Car ModelBrand & Model Brand&Model Year Fit Engine Code BMW 323i 2005-2011 E90 E91 E92 E93 N52B25A N52B25BF 325i / 325xi 2006-2011 E90 E91 E92 E93 523i 2005-2011 F10 N52B25A 525i / 525xi 2005-2010 E60 E61 X1 2009-2012 E84 X3 2006-2010 E83 N52B25BF Z4 2006-2011 E85 E89 N52B25A WARRANTY Raceorly offers a 2-year unlimited mileage warranty. It is warranted to be free from defects in workmanship and materials under normal use for the entire warranty period from the date of purchase. Any product that has been damaged, misused, or improperly installed will not be replaced. We always recommend professional installation of our products. The buyer assumes the risk of damage caused by improper installation. Shipping Payment Return Connect Us About Us Shipping 1.It usually takes 1-2 days to process an order. We only ship to the lower 48 states of the United States. We do not ship to FPO, APO, or PO Box addresses. 2.We ship to your order address. Please make sure your eBay and Paypal addresses are correct before paying for your order,no changes are allowed once the order is shipped. 3.Items will be shipped from our US warehouse. All items are brand new and packed in cartons. Extra packing materials will help you greatly reduce the risk of damage during shipping. Payment We accept all forms of payment permitted within the ebay Managed Payments checkout program, PayPal, Visa, Mastercard, American Express and Discover. We hope you can complete the payment as soon as possible so that we can ship the goods to you as soon as possible.Thanks for your business Return 1.30 Days Return and Money Back.The return shipping fee is borne by the seller. The items installed are not allowed to be returned unless there is quality problem 2. Please be sure to contact us for the return address before returning. Otherwise, we will not be able to receive your return. 3.All returned items must be well packed in original condition and contain all the items originally provided. Connect Us 1.We are a complete provider of automotive parts replacement in the aftermarket. 2.Note: Email inquiries will be answered within 24 hours during regular business hours (Except Holidays). All inquiries received outside business hours will be answered the next business day. We appreciate your patience and thank you for your business. About Us Raceorly is a leading company focusing on engine series for Volkswagen,Audi,Mercedes-Benz,BMW,Porsche, Land Rover,etc.Today,we have nearly 50 employees.We are committed to meeting customers'needs for engine performance and reliability,while pursuing excellent quality and providing professional services. On Nov 27, 2025 at 00:27:47 PST, seller added the following information:
From what I can tell, the new Crankshaft looks to be Very good quality and the item was packaged very well, and of the highest quality. Would absolutely recommend this seller to anyone!!!
A very trustworthy and responsible seller !! there are issues with the shipment and packaging from the warehouse, the seller immediately issue an refund without asking !!!
So far everything fits ok. Packing for shipping was a little lacking. Rod bearings had some chatter marks from being being in shipping bag not a box.
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