Description
Product Overview
The Hitachi 5225631-Kit Ignition Coil Kit supports the maintenance and repair of ignition systems in European vehicles. This kit provides an OE-level, all-in-one set of matched components designed for precision fitment and reliability. Common symptoms that may indicate the need for replacement include misfires, rough idling, and poor fuel economy. The Hitachi 5225631-Kit is an essential solution for addressing ignition-related issues in various models.
Kit Contents
- 8 x Hitachi – (IGC3804) Ignition Coils
- 8 x NGK – (6993) Spark Plugs
Cross Reference Numbers
This Hitachi 5225631-Kit is equivalent to or replaces the following part numbers: 6993, IGC3804, 1703228, 12131703825, 12131703227, 12139067830, 1748018, 12131748017, 1703825, 1404309, 12137599219, 12131404309, 12131703228, 1748017, 1703227, 12131748018.
Vehicle Compatibility
- BMW 840Ci 4.4 V8 (1996–1997)
- BMW 740iL 4.4 V8 (1996–2001)
- BMW 740i 4.4 V8 (1997–2001)
- BMW 540i 4.4 V8 (1997–2003)
- BMW M5 5.0 V8 (2000–2003)
- BMW Z8 5.0 V8 (2000–2003)
- BMW X5 4.4 V8 (2001–2002)
- BMW X5 4.6 V8 (2002–2003)
- BMW 840Ci 4.0 V8 (1995)
This kit also fits other applications. Please use the vehicle selector tool to verify compatibility before purchase.
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- Expertise You Can Trust: Over 25 years specializing exclusively in European vehicles.
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- Trusted Since 2000: Proudly serving the European car community for over two decades.
Frequently Asked QuestionsWhat symptoms indicate a faulty ignition coil?
Common symptoms of a faulty ignition coil include engine misfires, stalling, poor acceleration, and a decrease in fuel efficiency.
How can I diagnose ignition coil issues?
Diagnostic trouble codes (DTCs) such as P0300-P0308 may appear, which indicate misfires in specific cylinders, often linked to ignition coil failure.
What is the lifespan of ignition coils and spark plugs?
Ignition coils generally have a lifespan of 60,000 to 100,000 miles, while spark plugs may need replacement every 30,000 to 60,000 miles based on vehicle conditions.
Can using high-performance spark plugs help with ignition issues?
High-performance spark plugs may improve ignition efficiency, but it is important to use them in conjunction with the correct ignition coils to avoid compatibility issues.
What should I check if I experience rough idling?
Rough idling may be caused by faulty ignition coils, spark plugs, or air leaks in the intake system. A thorough inspection is recommended to identify the root cause.
Order Hitachi 5225631-Kit today to support a complete, well-matched repair for your vehicle.
Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.




