Motorevo UF550 Ignition Coil & Spark Plug Kit for Infiniti/Nissan 2.5L‑3.5L — 6‑Piece OE‑Style Replacement, Durable Copper Winding

Motorevo UF550 ignition coil pack with six spark plugs is a direct-replacement ignition kit designed to restore reliable spark and smoother running for select Infiniti and Nissan 2.5L and 3.5L engines.

When your engine misfires, rough-idles, or loses responsiveness, the ignition system is often the culprit. This Motorevo kit includes six engineered ignition coils and matching spark plugs intended as OE-style replacements for a long list of Infiniti and Nissan models from mid-2000s through recent years. The kit replaces OEM numbers such as UF550 and 22448-JA10C and is built from durable materials meant to withstand heat and repeated use.

Which vehicles will this Motorevo ignition coil and spark plug kit fit?

This kit targets a broad set of Nissan and Infiniti models fitted with 2.5L and 3.5L engines across multiple production years. Check the exact model year and engine code before purchase to confirm compatibility with your vehicle.

• Infiniti: EX35, FX35, G25, G35, JX35, M35, M35h, Q50, Q70, QX60 (various years listed above).
• Nissan: Altima, Maxima, Murano, Pathfinder, Quest, 350Z (selected years and displacements).
• Replaces common OEM part numbers including UF-550, 22448-JA10C, 22448-JA11C.

How does this kit improve engine performance and reliability?

The ignition coils supply a steady, high-voltage pulse to each spark plug while the plugs provide consistent spark delivery to the combustion chamber. Upgrading worn coils and plugs restores ignition timing precision, reduces misfires, and helps engines run more smoothly under load.

• Stable high-voltage output reduces weak or inconsistent sparks.
• Improved combustion efficiency can enhance throttle response.
• Durable materials resist overheating and electrical fatigue.

What are the technical features and materials of the Motorevo UF550 kit?

Motorevo builds this kit with attention to core ignition components: copper windings for reliable conductivity and ceramic insulation to withstand engine bay temperatures. The design mirrors OE fit and function to make installation straightforward and to maintain factory electrical characteristics.

• Copper coil windings for efficient current transfer.
• Ceramic insulators for thermal stability and electrical isolation.
• Manufactured to match OEM dimensions and electrical specs where applicable.

Can I install these coils and spark plugs myself, and what should I check before doing so?

Many mechanically-inclined owners can replace coils and plugs with basic hand tools, but proper torque, connector seating, and anti-seize/ dielectric treatments are important. Always follow vehicle-specific service procedures and replace components one bank at a time to avoid mix-ups.

• Verify vehicle compatibility and OEM part cross-references before purchase.
• Use a torque wrench to seat spark plugs to manufacturer specs.
• Inspect wiring harnesses, connectors, and surrounding components for wear while replacing parts.

Who is this for: This Motorevo UF550 6-piece kit is aimed at owners and independent mechanics who need a reliable, OEM-style ignition coil and spark plug replacement for Infiniti and Nissan 2.5L/3.5L engines produced between roughly 2007 and 2023. It suits drivers seeking to eliminate misfires, restore smooth idle and throttle response, or maintain a well-performing ignition system without buying dealer-priced parts.