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Smart Replacement Parts

Brand New 2.0 Petrol G4KH Engine for Kia Optima

Brand New 2.0 Petrol G4KH Engine for Kia Optima

SKU:G4KH-SRP-NEW

Extend Your Engine Warranty

The Brand New 2.0 Petrol G4KH Engine is built for the Kia Optima and ready to deliver smooth, responsive performance for your daily driving needs. Whether you're restoring factory reliability or tackling long commutes with confidence, this engine brings dependable power and peace of mind. Call now and get peace of mind with our parts and labor warranty!

Key Features

  • Brand new 2.0L G4KH petrol engine - no reconditioned parts
  • Precision-built for the Kia Optima for seamless installation and performance
  • Chain-driven DOHC design for long-lasting reliability and reduced maintenance
  • Improved thermal efficiency and combustion for better fuel economy
  • 12-month unlimited km parts and labor warranty included
  • Option to extend warranty to 24 months / 50,000 km if fitted at our Smart Vehicle Repairs workshop

Common issues with used G4KH engines include oil consumption, piston slap, and loss of compression. This brand new engine eliminates those concerns entirely. It's a long-term solution built to restore your vehicle’s performance and extend its lifespan without compromise.


Nationwide Shipping
No matter where you are in Australia, we can get this part to you. Our fast and reliable shipping service ensures coverage across the entire country, from major cities to regional areas and everywhere in between.

VIN Part Number Matching
Not sure if this part fits your car? Text us your VIN, and we’ll confirm if it's the right match for you!

Need it installed?
Fitting is available at our Smart Vehicle Repairs workshop - contact our team for pricing and availability.


Frequently Asked Questions

Is this G4KH engine brand new or reconditioned?
This is a 100% brand new G4KH engine with zero reconditioned or second-hand components.
Will this engine fit my Kia Optima?
Yes, it’s specifically designed for Kia Optima models using the 2.0L G4KH petrol engine - send us your VIN to double-check fitment.
What warranty is included with this engine?
You get a 12-month unlimited kilometre parts and labor warranty, with an option to extend if fitted at our workshop.
Do I need to replace any other parts during installation?
We recommend inspecting mounts, sensors, and cooling components for wear to ensure a smooth and trouble-free installation.
Brand New
Regular price $7,500.00
Regular price Sale price $7,500.00
Sale Sold out
Taxes included. Shipping calculated at checkout.
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Why SRP Brand New Engines?

  • Brand New, Not Rebuilt - 100% OEM engine with no reused or reconditioned components.

  • Factory Fitment Guaranteed - Built to exact manufacturer specifications for a perfect direct replacement.

  • 12-Month Warranty Included - Enjoy peace of mind with a standard 1-year warranty.

  • Extended 24 Month Warranty - Option to upgrade your coverage when installation is done by our expert technicians at Smart Vehicle Repairs.

  • Installation Available - Ask us about our professional fitting service, available onsite.

  • Nationwide Shipping - Fast delivery Australia-wide, from metro cities to remote areas.

  • VIN Matching - Unsure if it fits? Text us your VIN, and we’ll confirm compatibility before you order.