Marsram Ignition Coil and Iridium Spark Plug Kit for Toyota 2.4L — UF333 4-Pack, OE Fit & Improved Combustion

The Marsram UF333 kit is a four-pack ignition coil and iridium spark plug set engineered to restore reliable spark and stable combustion for Toyota 2.4L engines including Camry models from 2007–2011.

Built as a drop-in aftermarket replacement, this Marsram set combines epoxy-encased ignition coils and double-iridium spark plugs to deliver consistent ignition timing, reduced misfires, and improved throttle response compared with worn OE components. The kit includes four coils and four plugs sized for a wide range of Toyota, Lexus, Pontiac and Scion 2.4L applications; fitment varies by model year and VIN details, so verify compatibility before ordering.

Which vehicles will this Marsram UF333 kit fit?

This kit is designed for numerous Toyota platform vehicles that use the 2.4L inline-4 engine. It covers many Camry, RAV4, Solara, Matrix, Corolla XRS, Highlander and some Scion, Lexus and Pontiac models, with several regional build distinctions listed by year.

• 2007–2011 Camry 2.4L applications (including Hybrid and CE/Base trims where specified)
• 2001–2010 RAV4, 2009–2010 Matrix, 2009–2010 Corolla XRS where applicable
• Compatible Lexus HS250h, Pontiac Vibe, Scion tC/xB variants using the 2.4L platform
• Always confirm fit with VIN or the seller’s fitment tool before purchase

How do the ignition coils and spark plugs improve performance?

The coils use high-conductivity copper windings and durable epoxy housing to maintain strong, consistent spark energy under heat and vibration. The double-iridium plugs resist electrode wear, which helps preserve spark gap and combustion efficiency over time.

• Copper coil windings for faster, more reliable ignition delivery
• Epoxy and high-strength plastic housings to resist engine-heat damage
• Double-iridium electrodes minimize gap erosion and sustain spark strength
• Can reduce misfires, improve idle stability, and help throttle response

Is installation straightforward and what does the kit include?

Yes—this Marsram kit is designed to meet or exceed OE form, fit and function for an easy swap. The package contains four coil packs and four corresponding iridium spark plugs, matching common OE part numbers to simplify replacement.

• Direct-fit replacement coils engineered to OE mounting points and electrical connections
• Four double-iridium spark plugs matched to the coil stem length and heat range
• No special tools beyond common hand tools typically required for coil and plug replacement
• Follow manufacturer torque specs and gap settings where applicable

What warranty and quality assurances are provided with this Marsram set?

Marsram backs the kit with a one-year aftermarket warranty and emphasizes manufacturing controls and material choices to promote long-term durability. If any issue arises, contact the seller promptly for support and warranty handling.

• One-year limited warranty included with purchase
• Manufactured components: epoxy resin housing, high-strength plastics, copper coils, and iridium electrodes
• Packaged as 4 coils + 4 plugs for full-bank replacement on 4-cylinder 2.4L engines
• Replaces common OEM numbers such as UF333, UF494, 9091919023 and others listed

Who this is for: Mechanics, DIY enthusiasts and owners of Toyota 2.4L vehicles who need an affordable, full-bank ignition refresh will find this Marsram UF333 kit suitable. It’s helpful when diagnosing recurring misfires, rough idle, loss of acceleration, or as proactive maintenance on higher-mileage 2.4L engines. Always verify vehicle year, engine code and VIN fitment before ordering to ensure correct compatibility.