KacuYelin UF592 Ignition Coil Pack + 6 Iridium‑Platinum Spark Plugs for BMW 3.0L (2006–2013) — OEM Fit, Long‑Life

This KacuYelin kit pairs six UF592 ignition coils with six iridium–platinum spark plugs to restore reliable ignition and match OEM fit for select BMW 3.0L N52/N53 engines (2006–2013).

Designed as a one-stop replacement, this set combines high-grade ignition coils and long-life spark plugs engineered to meet or closely match original equipment specifications. The coils use high-purity copper windings, silicon steel cores and heat-resistant epoxy to keep voltage delivery steady, while the iridium–platinum plugs use laser-welded center electrodes and high-alumina ceramic for precise sparks and extended service life. Fitment covers many BMW 128i, 325i/xi, 328i, 330i, 525i/xi, 528i, 530i/xi, X3, X5 and Z4 models equipped with a rounded-triangle 3-pin coil connector and a smooth coil body (not laminated-plate coils).

How will these coils and plugs affect engine starting and idle stability?

The upgraded coil windings and concentrated spark plug electrodes improve ignition stability at start-up and at low rpm. Better spark consistency reduces misfires and hesitation, producing steadier idling and more dependable cold/warm starts.

• High-purity copper windings reduce voltage loss for stronger sparks.
• Laser-welded iridium center electrode focuses spark energy.
• High alumina ceramic insulator improves heat tolerance and insulation.
• Direct OEM-style fit for plug-and-play installation.

Will these parts increase fuel economy or reduce emissions?

By restoring accurate, complete combustion across cylinders, this coil-and-plug set can help the engine run more efficiently. While improvements depend on vehicle condition, properly functioning ignition components commonly lead to smoother combustion and lower unburned fuel emissions.

• More precise ignition reduces incomplete combustion and wasted fuel.
• Manufacturer states potential fuel efficiency gains when replacing worn parts.
• Designed to meet EPA-related performance expectations for emissions control.
• Helps prevent misfire-related catalytic converter stress.

What durability and material features should I expect from each component?

The coils are built with corrosion-resistant materials and high-temperature epoxy to withstand under-hood conditions. The iridium–platinum plugs use 360° continuous laser welding and up to 90% platinum content for extended electrode life, with an expected service window significantly longer than standard copper plugs.

• Coils: silicon steel core, high-purity copper windings and heat-resistant epoxy.
• Plugs: iridium–platinum electrodes with cold extrusion and laser welding.
• High-alumina (95%) ceramic bodies for improved thermal and electrical insulation.
• Rated for long life—manufacturer cites up to 70,000–100,000 miles under normal conditions.

How do I confirm fitment for my BMW before buying?

Verify year, model, engine displacement and aspiration against the listed fitment range and check that your vehicle uses the rounded-triangle 3-pin coil connector with a smooth coil housing. For online listings, input your vehicle details into the fitment tool or compare OEM part numbers to ensure compatibility.

• Compatible with many BMW 3.0L models from 2006–2013—see full fitment list.
• Not compatible with laminated-plate coil housings; requires smooth-body coils with 3-pin connector.
• Cross-references common OEM numbers including 12137594937 and related variants.
• Use year, model, submodel and engine info in the fitment checker before purchase.

Who this kit is for: Automotive DIYers and independent technicians who want a complete ignition refresh using parts built to match OEM-style specifications. It's suitable for owners of BMW 3.0L models in the listed years experiencing rough idle, misfires, increased fuel use, or intermittent starting issues, and for anyone who prefers a single kit with matched coils and long-life plugs for preventative maintenance.