Hyundai Sonata Kia Optima 2.4L G4KJ Engine Motor 11–15

Description

The Hyundai Sonata / Kia Optima 2.4L G4KJ Engine Motor is a genuine OEM power unit designed to deliver reliable performance, smooth operation, and exceptional fuel efficiency. Built with Hyundai-Kia’s Theta II engine architecture, the G4KJ 2.4L DOHC 16-valve inline-4 offers a perfect balance of power and economy for mid-size sedans.

This engine is equipped with Gasoline Direct Injection (GDI) technology, which improves fuel combustion, increases horsepower, and lowers emissions. It features an aluminum block and head for reduced weight, forged crankshaft, and a timing chain system for long-lasting durability without regular belt changes.

Performance & Reliability
Each G4KJ engine undergoes a thorough inspection before sale. This includes compression testing, leak-down analysis, oil pressure checks, and camshaft/valvetrain assessment. Any worn seals, gaskets, or critical components are replaced to ensure the engine is leak-free and ready for installation. Pre-filled with manufacturer-recommended oil, it’s ready for first start-up after installation.

Known for smooth acceleration, low vibration, and dependable power delivery, the G4KJ engine makes driving both comfortable and engaging. Whether you’re replacing a high-mileage motor or repairing after mechanical failure, this OEM unit restores your car’s original factory performance.

Fits in:

• 2011–2014 Hyundai Sonata 2.4L GDI G4KJ (Base, GLS, SE, Limited)

• 2012–2015 Kia Optima 2.4L GDI G4KJ (LX, EX, SX)

• 2013–2014 Hyundai Santa Fe Sport 2.4L GDI G4KJ (select markets)

• 2013–2015 Kia Sorento 2.4L GDI G4KJ (select models)

All mounting points, wiring connectors, sensors, and accessories match OEM specifications, ensuring a direct fit without modifications.

Installation & Warranty
Professional installation is recommended to ensure proper fitment, ECU synchronization, and break-in procedure. This engine is backed by a 6-month limited warranty, covering major internal components against manufacturing defects. Proof of installation by a licensed mechanic is required for warranty activation.

Why Choose OEM?
Genuine Hyundai/Kia engines ensure perfect compatibility with your vehicle’s electronics, drivetrain, and emissions systems. Aftermarket alternatives often lack the same durability, performance consistency, and fuel economy as OEM builds. Choosing a tested, verified original unit reduces the risk of early failure and keeps your vehicle running as designed.

Closing Assurance
Upgrading to a genuine OEM G4KJ 2.4L engine restores the performance, smoothness, and reliability your Hyundai Sonata or Kia Optima had when it left the factory. Built to handle daily driving demands while maintaining fuel efficiency, this engine is the smart choice for owners who expect the best from their vehicle.