Imported Kia engines, compression tested

Need a replacement Kia engine you can trust? Every Kia motor we stock is imported and compression tested before it hits our shelves. We know a failed engine can park an otherwise great Optima, Sorento or Soul, so we only list clean, low-mileage long blocks that pass our checks. Whether you are fixing a Theta II 2.4 or a turbo GDI, a tested replacement gets your Kia back on the road without the guesswork.

Shop by engine (Theta II, Gamma, Nu)

We carry the Kia four-cylinders owners actually search for:

• G4KJ (Theta II 2.4 GDI) – Optima, Sorento, Sportage
• G4KH (Theta II 2.0 Turbo GDI) – Optima, Sorento
• G4FJ (Gamma II 1.6 Turbo GDI) – Forte, Soul, Optima
• G4NB (Nu 1.8) / G4NC (Nu 2.0 GDI) – Forte, Soul
• G4FD (Gamma 1.6 GDI) – Rio, Soul

Every listing shows the engine code, year range and the exact model it fits, with clear photos. Check our active inventory for current stock.

Which Kia engine do you need?

The right engine is the one that matches your model, year and code exactly, since Kia used several closely related families. Most 2.4L Optima, Sorento and Sportage builds run the G4KJ Theta II, while smaller cars like the Forte, Soul and Rio use the Gamma and Nu families. If you are unsure which code your car uses, send us your VIN or the code off your old engine and we will confirm the correct match before you buy.

Fitment & compatibility

• Match the engine code exactly to your model and year  Kia families look similar but differ
• Confirm turbo vs non-turbo and GDI vs MPI before ordering
• Many accessories transfer from your original engine  check each listing
• Send your VIN if you are unsure and we will verify fitment

Inspection, warranty & shipping

We do not play games with our inventory. When you buy a Kia engine from us you get exactly what is pictured. Every engine is run through a compression test and a full visual inspection before it is listed, and if it does not pass, we do not sell it. Each block is cleaned and strapped to a custom wooden pallet, then shipped fast and fully insured. A standard startup warranty applies when installed by a certified mechanic.

Why buy from JDM State Motors of NC

There are many places to buy a Kia engine online, but JDM State Motors of NC hits different. We are a real North Carolina shop, so if you have questions about any Kia motor, we answer honestly  no shady overseas games. We pride ourselves on fast shipping, bulletproof packaging and highly competitive pricing, so you get tested, imported quality without emptying your bank account. Browse our full Hyundai engines lineup too, since these platforms share engines.

Collection FAQ

Do you test every Kia engine before selling it?

Yes. Every unit gets a compression test and a visual inspection before it is listed. If it does not pass, it does not go on the shelf.

How do I know which engine my Kia needs?

Match the engine code and year, or send us your VIN and we will confirm the correct engine before you order.

Do these engines come with a warranty?

Yes, a standard startup warranty applies when installed by a certified mechanic.