$3,499.00
Engine Overview
Engine Specs: 2.4L (2,359 cc) Inline 4-Cylinder
Engine Family: Hyundai/Kia Theta II GDI (Gen 2 / Updated Series)
Aspiration & Fuel: Naturally Aspirated (Direct Injection / GDI)
Included: Complete Engine Long Block with Intake & Fuel System
Unsure if this G4KJ engine fits your vehicle? Call our specialists at 403.471.7150 or enter your VIN at checkout to confirm before shipping.
Contact us with your VIN to confirm the correct engine or transmission before ordering.
Delivery takes up to 5 business days. Freight charges depend on your delivery location and are shown at checkout.
Warranty coverage and duration follow the purchased product. No returns for refunds. Faulty-engine exchanges are available under the applicable warranty. View our exchange policy.
Check each listing for new or used condition, mileage, testing details and included components. Contact us if you need clarification before ordering.
| Specification | Details |
| Engine Code (Part Code) | G4KJ (Theta II GDI – High Mount Starter) |
| Engine Family | Hyundai / Kia Theta II Engine Family |
| Engine Size | 2.4L (2,359 cc) Inline 4-Cylinder |
| Aspiration & Fuel | Naturally Aspirated / Direct Injection (GDI) |
| Mileage / Condition | 0 KM (Brand-New Factory Sealed) |
| Parts Included | Complete Bare Long Block (Head & Block Assembly) |
| Modification Notes | Direct Bolt-On OEM Replacement (High Mount Starter Block) |
| Warranty | 180-Day (6 Months) Warranty Included |
| Core Charge | $0 (No Core Return Required) |
Restore your vehicle’s performance with a brand-new 2.4L G4KJ Theta II GDI long block engine (High Mount Starter)—built directly to factory OEM specifications and ready for installation.
🏎️ Zero-Mileage Reliability: 100% Brand-New (0 KM / 0 Miles). Never rebuilt, remanufactured, or previously installed.
🔩 Direct OEM Fitment: Factory bolt-on compatibility for 2.4L High Mount starter configurations—no custom fabrication required.
🛡️ 6-Month Warranty: Backed by our 180-Day Engine Warranty for total peace of mind.
📦 No Core Return: Keep your old engine block! We do not charge a core fee or require old engine returns.
Engine Model: G4KJ 2.4L GDI Engine (High-Mount Starter Casting)
Common Applications: Fits 2.4L GDI models including Hyundai Sonata, Tucson, Santa Fe, and Kia Optima, Sportage, Sorento (specific trim years using the high-mount starter position).
VIN Verification Recommended: Because G4KJ engines come in both High-Mount and Low-Mount starter block castings, please call us at 403.471.7150 or include your VIN (Vehicle Identification Number) at checkout to verify your starter placement before shipping!
To ensure a seamless engine replacement, please review what is included with your new bare long block:
| Included (Factory Assembled) | Not Included (Transfer From Original Engine) |
| ✅ Brand-New Engine Block | ❌ Intake & Exhaust Manifolds |
| ✅ Brand-New Cylinder Head Assembly | ❌ High-Pressure Fuel Pump, Injectors & Fuel Rail |
| ✅ Internal Pistons, Rods, Crankshaft & Bearings | ❌ Alternator, Starter, AC Compressor & Steering Pump |
| ✅ Timing Chain Kit & Valve Cover (Pictured) | ❌ Engine Wiring Harness, VVT Solenoids & Sensors |
| ❌ ECU / PCM Computer |
Delivery takes up to 5 business days. Freight charges depend on your delivery location and are shown at checkout.
Contact us before ordering if you need to confirm delivery arrangements for your address.
Contact us to arrange pickup at 235126 Ryan Rd, Unit 7, Rocky View County, AB T1X 0K1, Canada.
We do not accept returns for refunds. Faulty-engine exchanges are available under the applicable product warranty. JDM Engine Supply pays return freight for a non-working engine being exchanged under warranty. Contact us to arrange the exchange and freight.
| Model | Year Range | Drivetrain | Notes |
| Hyundai Sonata | 2015 – 2019 | FWD | Gen 2 / High-mount setup |
| Hyundai Santa Fe / Sport | 2017 – 2020 | FWD / AWD | Gen 2 / High-mount setup |
| Hyundai Tucson | 2018 – 2021 | FWD / AWD | Gen 2 / High-mount setup |
| Kia Optima | 2016 – 2020 | FWD | Gen 2 / High-mount setup |
| Kia Sorento | 2016 – 2020 | FWD / AWD | Gen 2 / High-mount setup |
| Kia Sportage | 2017 – 2022 | FWD / AWD | Gen 2 / High-mount setup |
Vehicle options, trims, and engine splits can vary. Before placing your order, please contact us with your VIN (Vehicle Identification Number) or add it to your order notes at checkout. Our team will verify exact block, head, and sensor compatibility for your specific vehicle.
🛠️ Installation & Peripheral Swap Notice:
⚠️ Disclaimer: This compatibility table is provided for reference purposes only. It is the buyer/installer’s responsibility to confirm that the engine code (G4FJ) matches their existing vehicle setup prior to installation.
