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  • Brand new 2.4L G4KJ petrol engine for Hyundai and Kia
  • Brand new 2.4L G4KJ petrol engine for Hyundai and Kia
  • Brand new 2.4L G4KJ petrol engine for Hyundai and Kia
  • Brand new 2.4L G4KJ petrol engine for Hyundai and Kia
  • Brand new 2.4L G4KJ petrol engine for Hyundai and Kia
  • Brand new 2.4L G4KJ petrol engine for Hyundai and Kia
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Smart Replacement Parts

Brand New 2.4 Petrol G4KJ Engine for Kia Optima

Brand New 2.4 Petrol G4KJ Engine for Kia Optima

G4KJ-SRP-NEW (D) OPTIMA

Extend Your Engine Warranty

Extended Warranty Graphic

Brand New 2.4L Petrol G4KJ Engine to suit Kia Optima TF and JF models. Whether you're commuting, road-tripping, or just need reliable daily performance, this engine delivers smooth power and dependable operation. Call now and get peace of mind with our parts and labor warranty!

Key Features

  • Brand new G4KJ engine - not reconditioned or second-hand
  • 2.4L DOHC CVVT setup for responsive acceleration and fuel efficiency
  • Built for smooth, quiet operation in midsize sedans like the Kia Optima
  • Zero kilometer engine - ready to drop straight in with no core required
  • 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 like oil consumption, bearing knock, and overheating are no longer a worry with this brand new G4KJ engine. It’s a fresh, long-term solution designed to eliminate the risks of buying used. Upgrade once and drive with confidence.

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

What cars is the G4KJ engine compatible with?
This engine suits Kia Optima TF and JF models with the 2.4L petrol setup. Contact us to check compatibility with other models.
Is this engine brand new or rebuilt?
It is 100% brand new, not reconditioned or used - zero kilometres, direct from the manufacturer.
What problems does this engine fix?
It resolves common G4KJ issues like oil burning, rod knock, and overheating due to worn components.
What warranty comes with the engine?
It includes a 12-month unlimited km parts and labor warranty, with an optional extension to 24 months / 50,000 km if installed at our workshop.
Brand New
$7,950.00
$7,950.00
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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.
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