Marsram Ignition Coil Pack & 4 Double-Iridium Spark Plugs for Toyota Corolla 2000–2008 — UF247 Direct-Fit, OE-Style Durability

Marsram's UF247 ignition coil pack with four double-iridium spark plugs replaces worn units on compatible Toyota and GM 1.8L engines to restore consistent spark and smoother starts.

Designed as a direct-fit aftermarket replacement, this kit includes four ignition coils and four high-performance double-iridium spark plugs engineered to meet or exceed original equipment specifications. The coils use robust epoxy and high-strength engineering plastics externally with high-conductivity copper windings internally, while the plugs use a double-iridium design to resist corrosion and maintain a stable gap. Together they address misfires, rough idling, and sluggish starts when the original parts age.

Which vehicles will this Marsram coil pack and spark plug kit fit?

This kit is built for 1.8L 4-cylinder applications across select Toyota and GM models. It replaces multiple OEM part numbers and fits many model years—always confirm fitment with your vehicle’s specifications before ordering.

• Toyota: 2000–2008 Corolla (CE/LE/S), 2000–2005 Celica GT, 2000–2005 MR2 Spyder, 2003–2008 Matrix (Base/XR)
• GM: 1999–2002 Chevrolet Prizm (Base/LSi), 2003–2008 Pontiac Vibe (Base)
• Replaces OEM/aftermarket references: UF247, 90919-02239, 90919-02339, 90080-19015 and others listed on the product page

How does the coil and spark plug construction improve ignition performance?

Marsram coils combine durable outer materials and copper windings to maintain reliable high-voltage delivery under heat stress. The double-iridium spark plugs keep the spark gap stable and resist electrode wear, promoting efficient combustion over the plug’s service life.

• Epoxy resin and engineering plastic housings resist heat deformation and cracking
• Copper-wound coil cores provide faster, stronger spark delivery
• Double-iridium electrodes reduce gap growth and corrosion for consistent firing
• OE-style dimensions enable plug-and-play replacement with factory connectors

What installation and durability features should I expect?

The kit is supplied as a four-coil, four-plug package with parts engineered to meet OE dimensions and performance. Installation is straightforward for anyone comfortable with basic engine work, and Marsram backs the product with a 1-year aftermarket warranty.

• All coils and plugs meet or exceed OE fit and performance standards
• Simple bolt-on installation—no special tools beyond common hand tools
• Stringent testing and quality control during manufacturing for durability
• Includes a one-year warranty and customer support for fitment or quality questions

Will replacing both coils and plugs at once make a noticeable difference?

Replacing coils and plugs together restores synchronized ignition timing and consistent spark energy across all cylinders, which commonly reduces misfires and rough idling. When compared to replacing only one component, a full-kit swap helps ensure uniform performance and avoids early repeat maintenance.

• Smoother idle and more consistent throttle response
• More reliable cold starts and less stumble during acceleration
• Even wear across cylinders helps extend service intervals

Who is this for: Drivers and DIY mechanics who own a compatible Toyota Corolla, Celica, MR2 Spyder, Matrix, Chevrolet Prizm or Pontiac Vibe with the 1.8L 4-cylinder engine and who are experiencing ignition-related symptoms or who want a cost-effective, OE-form-fit replacement. The Marsram UF247 coil pack and double-iridium spark plug kit is also suited to service shops needing a ready-to-install four-cylinder ignition set backed by warranty and manufacturer support. Always verify fitment against your vehicle’s year, engine code, and OEM part numbers before purchase.