

2016-2020 Kia Optima 1.6L Turbo Engine | G4FJ Gamma II T-GDI Motor (Brand New Low Mileage)
Stock number KIA-EN-G4FJ-016
In stock, ships from Grand Rapids
| Stock number | KIA-EN-G4FJ-016 |
|---|---|
| Make | Kia |
| Engine code | G4FJ |
| Fits model years | 2016-2020 |
| Category | Engines, Kia Engines |
| Shipping weight | 280 lbs (estimated) |
| Condition | Used, imported from Japan, tested before dispatch |
| Warranty | 90 days from delivery |
Prefer to write it down? Call +1 503-551-4892 or email Sales@hanedaautos.com.
Get a freight price firstThis ships by freight. It travels bolted to a pallet, and the price depends on your ZIP, whether the address is residential and whether you need a liftgate. Order online and we will send the freight price before anything leaves the floor, or get the price up front below.
Checking fitment? Call +1 503-551-4892 or email Sales@hanedaautos.com with your VIN and we will confirm it against this unit.
About this unit
| Feature | Details |
| Engine Code | G4FJ (Gamma II) |
| Displacement | 1.6 Liters (1,591cc) |
| Aspiration | Twin-Scroll Turbocharged |
| Fuel System | Gasoline Direct Injection (T-GDI) |
| Horsepower | 177 hp @ 5,500 rpm |
| Torque | 195 lb-ft @ 1,500–4,500 rpm |
| Condition | Brand New (low mileage) |
Vehicle Fitment
This engine is a direct bolt-on replacement for the following models:
Kia Optima (LX 1.6T, EX): 2016, 2017, 2018, 2019, 2020
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Installation & Maintenance
To protect your brand-new engine and ensure warranty coverage, follow these critical steps:
Turbocharger Inspection: Ensure your existing turbocharger is free of debris and shaft play before bolting it to the new block.
Oil Specifications: Use only high-quality full synthetic API SP or ILSAC GF-6 certified oil (0W-20 or 5W-30) to prevent Low-Speed Pre-Ignition (LSPI).
-->Break-In Period: Follow a standard 1,000-mile break-in procedure. Avoid constant speeds and heavy towing for the first 500 miles.
What is included
You receive exactly what is pictured. Engines are supplied as a long block assembly with the components visible in the photos. Accessories such as the alternator, starter, intake manifold or sensors are included only where you can see them on the unit, so check the photographs before ordering and ask us if anything is unclear.
Before you order
- Confirm the engine code against your own vehicle, not just the model year.
- Japanese market units can differ from the US version in intake, loom and sensors.
- Replace the timing components, water pump and seals while the unit is out. It is cheap insurance on an engine this age.
- Keep your original accessories until the swap is finished and running.
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