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Home - Products - Engine System - Engine Block - For BMW - 2.5L V6 2WD N52 N52B25 Engine for BMW 523i 523Li Z4 3series 5series 7series Engine Assembly

2.5L V6 2WD N52 N52B25 Engine for BMW 523i 523Li Z4 3series 5series 7series Engine Assembly

Engine Code:	N52 N52B25
HG No:	HGLB2030
Car Series:	German Car
Car Brand:	BMW
Car Model:	BMW 523i 523Li Z4 3series 5series 7series

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Product Description

The BMW N52B25 is a 2.5-liter (2497 cc) inline 6-cylinder gasoline engine introduced in 2005 as part of the new N52 engine series, succeeding the well-regarded M54B25. Unlike previous iterations within the M family, the N52B25 is a completely redesigned unit featuring a magnesium-aluminum alloy block, aimed at reducing weight for better performance and efficiency.

This engine also incorporates lightweight pistons and connecting rods, a revised crankshaft, and Valvetronic variable valve timing. It uses a multi-point fuel injection system.

Power output:177–218hp

Torque:230–250Nm

The N52B25 was widely used across BMW's compact and midsize models and is recognized for its smooth power delivery, relatively low weight, and refined operation.

Related engine code:N52B30

Applicable Models:

130 kW Applications:

2006 E90 323i — Canada and Australia

2004-2007 E60/E61 523i

2006-2008 E85 Z4 2.5i

150 kW Applications:

2007-2011 E90 323i — Canada and Australia

2010-2011 F10 523i

2009-2011 E89 Z4 sDrive23i
160 kW Applications:

2005-2010 E83 X3 2.5si, xDrive25i

2005-2010 E60/E61 525i, 525xi — except U.S. and Canada

2004-2013 E90/E91/E92/E93 325i, 325xi — except U.S. and Canada

2005-2008 E85 Z4 2.5si

Car Engine Parts Diagram

Let us take a look at a detailed car engine parts diagram, which highlights the essential internal components of an engine. This type of diagram helps us visualize the exact location and arrangement of each part. It typically includes major elements such as the rocker cover, rocker arms, valve springs, cylinder head, spark plugs, valves, engine block, pistons, connecting rods, crankshaft, camshaft, timing chain, oil pump, oil pan, and flywheel. Also shown are related parts like the ignition distributor, fuel pump, gaskets, and distribution components. By referring to such a diagram, we can gain a better understanding of how these parts interact to power a vehicle's engine.

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Related FAQ

Q: How can you ensure the quality?

A: We strictly test 100% products before delivery to guarantee each set in excellence.
Q: How about the after-sales service?

A: 12 months quality warranty. Once you meet any problem during application, you could contact us at 24/7.
Q: Sample Available?

A: Yes, it's sure for you to choose sample or samples to test product quality and our service, which is our pleasure.
Q: What is the terms of payment?

A: Usually, 30% deposit in advance and 70% payment before shipment.
Q: What is the delivery date?

A: Generally, if in small amount, the delivery is 10 work days around after payment, while in large demands, we need to confirm it by fact.
Q: Could I purchase other engine parts from your company?

A: Yes, definitely. We supply engine assembly, engine block, cylinder block, cylinder head, and spare parts applicable with the most of auto cars and trucks. You could leave the OE number or engine number of what you wanna purchase, then we could talk about the details further.

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