Marsram Ignition Coil Pack for Toyota 1.8L — 4-Piece UF596 Replacement, Copper Windings & Heat-Resistant Epoxy

Marsram Ignition Coil Pack UF596 is a direct-fit four-piece replacement set engineered to restore factory ignition performance for 1.8L Toyota and compatible models.

This four-pack of ignition coils is designed to replace worn or failing coil units on select Toyota, Lexus, Scion, Pontiac, and Matrix models equipped with the 1.8L L4 engine. Each coil uses high-conductivity copper windings and a durable epoxy-resin exterior to resist heat and deliver consistent spark delivery. The set includes parts that map to common OEM numbers, and Marsram backs the kit with a one-year warranty after quality testing.

Will these coils fit my vehicle?

They fit a broad group of 1.8L L4 applications from 2008–2017; check compatibility using your VIN or the listed applications. The listing replaces many OEM part numbers for straightforward cross-referencing.

• Compatible models: 2009–2017 Toyota Corolla 1.8L, 2010–2016 Prius 1.8L, 2011–2017 Lexus CT200h, 2009–2014 Toyota Matrix, 2008–2014 Scion xD, 2009–2010 Pontiac Vibe, and others.
• Cross-reference numbers: 90919-02258, C1714, E1096, GN10341, UF596, UF619, and more.
• Verify fit: use vehicle year, engine size (1.8L L4), or VIN-based parts finder before ordering.

How will replacing coils with this Marsram set affect engine behavior?

Installing fresh coils can resolve ignition-related symptoms by restoring steady spark and timing reliability. Expect smoother starts and reduced misfires when the coil was the root cause, although other components (plugs, wiring, sensors) also influence performance.

• Reduces misfire occurrences and rough idle caused by weak coils.
• Improves starting consistency and lowers long-crank events if coils were faulty.
• Helps stabilize combustion to support more consistent transmission shifts and drivability.

What are the construction and durability features of these coils?

Marsram coils combine high-strength engineering plastic and epoxy resin on the exterior to resist engine heat and chemical exposure. Internally, copper windings enhance electrical conductivity for reliable spark delivery under load.

• Exterior: epoxy resin plus reinforced engineering plastic for heat resistance.
• Interior: high-conductivity copper coil for efficient ignition output.
• Quality control: endurance-tested and shipped with a one-year warranty.

Can these coils fix a check engine light or fuel economy drop?

If misfires or ignition faults caused the check engine light and inefficient combustion, replacing defective coils often clears related trouble codes and helps fuel economy recover. However, diagnostic confirmation is recommended since multiple systems can trigger similar symptoms.

• Targets ignition-related OBD-II codes tied to misfires and coil circuit faults.
• May improve fuel economy by restoring consistent combustion when coils were failing.
• Recommended: scan fault codes and inspect spark plugs and wiring to isolate the issue.

Who is this for: Drivers and DIY technicians who own Toyota, Lexus, Scion, Pontiac, or Matrix models with the 1.8L L4 engine looking for a cost-effective, direct-fit ignition coil replacement. This Marsram four-pack suits people replacing multiple coils at once, professional shops needing dependable aftermarket parts, and anyone troubleshooting ignition-related misfires, hard starting, or inconsistent engine performance. Always confirm compatibility with your vehicle’s year, engine code, or VIN before purchase, and replace spark plugs and related wiring as needed for best results.