smart repairboy Ignition Coil Connector Pigtail Harness Kit — 4-Pack for Hyundai/Kia 1.6–2.0L (2011–2020), 18 AWG with Heat-Shrink

These four ignition coil connector pigtail plugs are replacement harnesses designed to restore reliable electrical connection for Hyundai and Kia 1.6L–2.0L engines from roughly 2011–2020.

If your vehicle is showing misfire codes, rough idle, or check-engine warnings tied to ignition coils, a worn or damaged coil connector harness can be the cause. This smart repairboy kit includes four plug harnesses built with 18-gauge copper wire and comes with heat-shrink connectors so you can make a durable repair without replacing the entire coil assembly.

Which cars and engines will these harnesses fit?

These pigtail plugs were produced to match the electrical connectors used across many Hyundai and Kia models. Fitment covers common compact and mid-size cars with 1.6L, 1.8L, and 2.0L engines from model years shown below.

• Hyundai Accent (1.6L 2012–2020), Elantra in several trims (2011–2020), Sonata (1.6L 2015–2018), Tucson (1.6L/2.0L 2014–2020), Veloster (1.6L 2012–2017).
• Kia Forte, Forte Koup, Forte5, Optima (1.6L/1.8L/2.0L ranges 2012–2019), Rio and Soul (1.6L/2.0L 2012–2020).
• Replaces part numbers PT2910 and S2928—verify by comparing the damaged connector to these references before installing.

How is the harness constructed and what materials are used?

Each pigtail uses 18-gauge copper conductors for consistent conductivity and a 12-inch (about 30 cm) lead length to ease routing during installation. The connectors are designed to match OEM pin spacing and terminal shape so they seat securely on the ignition coil pins.

• 18 AWG copper wire for dependable current flow.
• 12-inch lead length for flexible placement and routing.
• Terminals formed to align with OEM coil pins for tight fit.
• Packaged with heat-shrink connectors for water-resistant, strain-relieved joints.

What’s included in the package and what tools do I need?

The kit contains everything required to replace four worn coil connectors: four pigtail harnesses plus eight heat-shrink connectors so both ends of each splice can be protected. Basic hand tools and the ability to make simple electrical splices are all that’s required for installation.

• 4 ignition coil plug harnesses (one per cylinder plug location).
• 8 heat-shrink connectors to seal and protect splices.
• Tools recommended: wire cutters/strippers, crimping tool or soldering iron, heat gun or lighter for shrink tubing.
• Installation time: commonly 30–60 minutes depending on vehicle accessibility.

Will these harnesses fix engine codes or misfires?

Replacing a cracked or corroded coil connector can resolve connectivity-related misfires and related diagnostic trouble codes when the ignition coil itself is still functioning. However, if the coil, spark plug, or ECU has failed, the harness alone may not resolve the issue.

• Good for electrical-connection faults and cracked wiring insulation.
• Not a solution if the ignition coil or spark plug is defective.
• Recommended to diagnose codes first to confirm connector is the root cause.
• Pair with good installation practice for longer service life.

Who is this for: This smart repairboy 4-piece ignition coil pigtail set suits DIY mechanics, independent shops, and fleet technicians working on Hyundai and Kia vehicles listed above who need a cost-effective way to restore reliable coil connections. If you prefer to replace only damaged wiring instead of expensive OEM coil assemblies, this kit provides the wiring, terminals, and heat-shrink protection needed for a neat, durable repair.