Motorevo UF550 Ignition Coil & Spark Plug Kit for Infiniti/Nissan 2.5L–3.5L — 6-Piece OE-Style, Reliable High-Voltage

This Motorevo kit contains six ignition coils and spark plugs engineered as direct-fit replacements for many Infiniti and Nissan VQ and VQ-derived 2.5L and 3.5L engines from model years listed. Designed as an OE-style replacement, the UF550 family of coils provides stable high-voltage delivery and durable construction so your engine gets consistent ignition across all cylinders. The package addresses common ignition-failure symptoms—misfires, rough idle, decreased throttle response—and brings parts compatibility across a long list of EX, FX, G, JX, M, Q, QX and Nissan models.

How does the Motorevo UF550 kit improve engine ignition?

The UF550 coil produces steady high-voltage output to ensure each spark plug fires reliably, supporting efficient combustion under load and at idle. Upgrading worn coils and plugs reduces misfires and helps restore smoother acceleration.

• Stable high-voltage output for consistent spark timing
• Copper windings and ceramic insulator resist heat and wear
• Packaged as six coils and matching spark plugs for full-bank replacement

Which vehicles and part numbers does this kit fit?

This set is compatible with many Infiniti and Nissan 2.5L/3.5L models across the 2007–2023 range; check your VIN and existing part numbers to confirm fitment before purchase. It replaces several OE references so it’s a convenient one-stop swap for common VQ engines.

• Fits Infiniti: EX35, FX35, G25, G35, JX35, M35, M35h, Q50, Q70, QX60 (listed years)
• Fits Nissan: Altima, Maxima, Murano, Pathfinder, Quest, 350Z (listed years)
• Replaces UF550, 22448-JA10C, 22448-JA11C, 22448-JA10A and other OE numbers

What are the build and material highlights to expect?

Motorevo constructs these coils with robust materials—copper windings for electrical efficiency and a ceramic insulator to withstand engine-bay heat—while spark plugs are matched for correct gap and heat range. The kit aims for longevity under typical driving conditions when installed and used with routine engine maintenance.

• Copper primary/secondary windings for durable conductivity
• Ceramic insulator resists thermal stress and cracking
• Pre-gapped spark plugs matched to coil output for reliable firing

How easy is installation and what should I prepare?

Installation is straightforward for anyone comfortable with basic engine work: remove battery negative, unplug old coils, swap in new coils and plugs, and torque to factory specs. If you’re unsure, a professional install ensures proper gap, torque and connector seating.

• Full-bank replacement (6 coils + plugs) reduces diagnostic guesswork
• Requires basic hand tools and torque wrench for best results
• Inspect connectors, wiring harness, and ignition boots during swap

Who is this product for? This Motorevo UF550 6-piece coil pack and spark plug kit is aimed at DIY mechanics, independent repair shops, and owners of compatible Infiniti and Nissan models who need a reliable, OE-style replacement. It’s ideal when your vehicle shows ignition-related symptoms, when you’re performing scheduled spark/plugs service, or when you prefer replacing all coils and plugs at once to ensure balanced ignition across all cylinders. Always confirm vehicle year, engine size and part numbers before ordering to guarantee fitment.