Hyundai-Kia G4KJ 2.4L GDi petrol engine for sale.

Hyundai-Kia G4KJ 2.4L GDi Petrol Engine

 High-Performance Replacement Engine for Sale

The Hyundai-Kia G4KJ 2.4L GDi petrol engine is a popular and highly efficient power plant known for its strong mid-range power, smooth driving feel and impressive fuel economy. This direct-injection four-cylinder engine is commonly fitted to a wide range of Hyundai and Kia midsize sedans and SUVs, making it an excellent choice for customers seeking a reliable, high-quality replacement engine. 

Whether you’re rebuilding a family vehicle, restoring a pre-owned model or replacing a worn-out motor, the G4KJ engine offers excellent durability, performance and long-term value. Its modern GDi system ensures responsive throttle behavior while maintaining low emissions and reduced fuel consumption.

The G4KJ 2.4L GDi engine is widely used in many Hyundai and Kia models. It is commonly found in the Hyundai Sonata, Hyundai Santa Fe, Hyundai Tucson, Kia Optima (K5), Kia Sportage, and Kia Sorento, depending on the market and production year. 

Because of its versatility, this engine is a practical replacement option across multiple vehicle platforms, particularly for owners who need a dependable engine for daily commuting, commercial use, or long-distance travel. Compatibility may vary slightly by year and ECU configuration, but it remains one of the most widely fitted gasoline engines in the Hyundai-Kia lineup.

Common weaknesses and Maintenance.

In terms of technical specifications, the Hyundai-Kia G4KJ features a 2.4-liter displacement with GDi (Gasoline Direct Injection) technology, dual overhead camshafts, and 16 valves for optimal air-fuel management. It typically produces 180–190 horsepower with strong torque delivery suited for both city and highway driving. The engine uses a timing chain, ensuring lower maintenance frequency compared to belt-driven designs, and incorporates an advanced cooling and lubrication system for sustained performance.

Despite its strengths, the G4KJ engine has a few known weaknesses. Some units experience carbon buildup on intake valves, which is common in GDi engines and can be managed through periodic intake cleaning. In higher-mileage vehicles, owners may notice oil consumption or noisy lifters, often caused by neglected maintenance or low-grade oil. Ensuring timely oil changes, using high-quality lubricants, and servicing the PCV system can significantly improve longevity. Regular cooling-system checks also help prevent overheating, which can otherwise lead to premature wear.

Each engine is inspected, compression-tested, and imported directly to our warehouse, guaranteeing high quality and long-term reliability