CALL A PARTS SPECIALIST+1 (302) 590-50892015 KIA OPTIMA / USED ENGINES
Need a used 2015 Kia Optima engine? First, check whether your car qualifies for Kia’s Theta II engine warranty; it covers many 2.4L and 2.0L turbo engines. If it does not, we source used replacement engines and confirm fitment, price and delivery for the exact unit.
Used replacement engines · US customers · Matched by VIN
2015 / KIA / OPTIMA / ENGINE
Pick the engine your car was built with, and we confirm the exact unit with your VIN.
Not sure? Leave it blank and call with your VIN. Call +1 (302) 590-5089.
YOUR KIA. YOUR NEXT STEP.
Tell us about your 2015 Kia Optima and the engine you need.
IDENTIFY BEFORE YOU ORDER
The 2015 Optima used a 2.4L GDI four-cylinder or a 2.0L turbo, plus a hybrid version. The 2.4L and 2.0T are Theta II engines covered by Kia’s warranty program.
| Engine | Type | Before you request a replacement |
|---|---|---|
| 2.4L 4-cylinder GDI (Theta II) | Gas · LX and EX | Check warranty eligibility first. Match the VIN engine code. |
| 2.0L turbo GDI (Theta II) | Gas turbo · SX and SXL | Check warranty eligibility first. Match the turbo application. |
| Hybrid 2.4L | Optima Hybrid | Hybrid-specific. Call to discuss sourcing. |
Warranty eligibility depends on Kia’s criteria; confirm with a dealer. Sources: Kia Optima (TF) (Wikipedia); The Drive: 2011–2019 Hyundai/Kia Theta II engine warranty.
Hyundai and Kia offer a lifetime engine warranty on many 2011–2019 vehicles with the 2.4L and 2.0L turbo Theta II GDI engines, once the Knock Sensor Detection System software is installed. Check with a dealer before you pay for a replacement.
Talk it through →The Optima shares Theta II engines with the Hyundai Sonata of these years. A Sonata-sourced engine can work, but only if the engine code and application match your car.
Ask about a match →FITMENT BEFORE COMMITMENT
A used 2015 Kia Optima engine has to match the engine your car was built with: the 2.4L Theta II or the 2.0L turbo Theta II. Before buying, check whether your car qualifies for Kia’s Theta II engine warranty. Confirm the VIN, engine code and what is included before you order.
Keep your service records. Kia’s warranty program can ask for maintenance history, and a dealer can tell you quickly whether your VIN qualifies.
A CLEARER QUOTE STARTS HERE
The total has two parts: the engine and the installation. Price depends on the unit’s condition, documented mileage where available, what comes with it and current availability.
Give us your ZIP code and the delivery address type. We confirm shipping eligibility, access and timing so you can book the install.
Review the applicable return terms and the written warranty before purchase.
ANSWERS FOR YOUR NEXT REPAIR
LX and EX models have the 2.4L Theta II GDI. SX and SXL models have the 2.0L turbo. The Optima Hybrid has its own system. Your VIN confirms which one.
2015 Kia Optimas with the 2.4L or 2.0L turbo Theta II GDI engine are among the vehicles eligible for Hyundai and Kia’s lifetime engine warranty, subject to the Knock Sensor Detection System software update and other criteria. Ask a dealer to check your VIN before buying a used engine.
It depends on the unit’s condition, documented mileage where available, what is included and current availability, plus installation. Call with your VIN for a quote, then compare the delivered total, any core charge and your installer’s estimate.
We serve US customers from owned inventory and supplier sourcing. Give us your ZIP code to confirm shipping eligibility, access and timing. Warranty options up to three years are offered. Confirm the written coverage, exclusions, installation requirements and return terms for your unit.