MAS Ignition Coil Pack for 1.8L 1ZZ‑FE Engines — Direct-Fit for Corolla/Matrix, High-Heat Durable

MAS ignition coil pack replaces faulty coils on 1.8L 1ZZ-FE engines to restore reliable spark, smoother starts, and steadier engine performance.

This MAS replacement ignition coil pack is engineered to fit a wide range of vehicles that use the 1ZZ-FE L4 1.8L engine, including Toyota Corolla, Matrix, Celica, MR2 Spyder and GM-sourced models like the Chevrolet Prizm and Pontiac Vibe. Built using materials rated for high heat and mechanical stress, the coil aims to reduce common ignition-related faults that lead to misfires, rough idling, long cranks, and check engine light codes. The part is offered as a direct-fit replacement for several OEM numbers, giving a straightforward swap for routine repairs or preventative maintenance.

How will this coil pack affect starting and idle behavior?

Replacing a worn coil with this MAS unit can reduce long crank times and restore consistent spark delivery at idle and during acceleration. Improved ignition stability helps the engine start more reliably and run smoother without intermittent misfires that cause rough idling.

• Restores strong spark to each cylinder for quicker starts.
• Reduces stumbling and hesitation during cold and warm starts.
• Helps eliminate intermittent misfires that trigger rough idle.

Will this part fit my vehicle and match OEM specifications?

The MAS coil pack is designed as a compatible replacement for multiple OEM part numbers and a list of model years that use the 1ZZ-FE 1.8L engine. It aligns with the form, fit, and connector types used on the specified Toyota and GM models, making it a practical direct-swap option for routine repairs.

• Compatible models: Toyota Corolla (1999–2010), Matrix (2003–2008), Celica (2000–2005), MR2 Spyder (2000–2005), Chevrolet Prizm (2000–2002), Pontiac Vibe (2003–2006).
• Cross-references common OEM numbers: 90919-02239, 90919-12002, 90080-19015, UF247 and others.
• Connector and mounting points engineered to match factory locations for easy installation.

What materials and design features improve durability?

MAS uses proven insulating wire coatings and high-temperature-tolerant materials in this coil pack to resist cracking, pinholes, and electrical breakdowns that commonly cause coil failure. That durable construction helps maintain spark integrity under heat and vibration typical of engine bays.

• High-temperature rated wire and insulation to resist thermal degradation.
• Robust potting and sealing to limit moisture intrusion and electrical shorting.
• Quality control focused on dimensional accuracy for consistent electrical performance.

How will replacing the coil affect other systems like fuel economy or emissions?

By restoring consistent ignition timing and complete combustion, this coil pack can reduce the symptoms that lead to poor fuel economy and elevated emissions. While it does not change engine tuning, fixing misfires and weak spark helps the engine run more efficiently and can prevent secondary damage to downstream components.

• Reduces incomplete combustion that wastes fuel and raises emissions.
• Helps prevent spark plug fouling and oxidative stress on catalytic converters.
• Can lower the likelihood of check engine light triggers related to ignition faults.

Who is this for: This MAS ignition coil pack is intended for owners, mechanics, and DIY technicians working on 1.8L 1ZZ-FE Toyota and compatible GM models who need a cost-effective, direct-fit replacement. It suits vehicles experiencing ignition-related symptoms—such as hard starting, misfires, or a glowing check engine light—or anyone performing scheduled maintenance to avoid future ignition failures. Verify vehicle year and OEM cross-reference numbers before ordering to ensure correct fitment.