Kia Optima Radiators and Coolers
This page brings together radiators and coolers for the Kia Optima, covering model years 2001–2020. The range includes OE replacement radiators, automatic transmission oil coolers, radiator supports, and radiator caps in direct-fit and heavy-duty styles. Pick your Kia Optima's year above to narrow the list to radiators and coolers with confirmed fitment. Every part shown is checked against our vehicle data.
Hayden Automotive 677 Rapid-Cool Plate and Fin Transmission Oil Cooler Kit
Hayden Automotive 678 Rapid-Cool Transmission Oil Cooler 11" x 9.5" x 0.75"
Derale Performance 15405 Plate & Fin Engine Oil Cooler Kit with Sandwich Adapter
Derale Performance 15502 Series 7000 Engine Oil Cooler Kit with Sandwich Adapter
Hayden Automotive 401 Ultra-Cool Tube and Fin Transmission Oil Cooler
Hayden Automotive 293 Universal Metal Oil Cooler Line Kit with 3/8" Tubes and 1/2" NPT Fittings
What's here for your Kia Optima
- Radiators — OE replacement, performance, and heavy-duty options in direct-fit and universal configurations
- Automatic Transmission Oil Coolers — standalone units and kit configurations
- Radiator Supports — front-mounted structural brackets and assemblies
- Radiator Caps — direct-fit replacement caps for the cooling system
The widest selection here comes from DENSO, Hayden Automotive, Keystone, and Dorman, covering a broad spread of styles and fitment types across the 2001–2020 Kia Optima range. Other categories Kia Optima owners shop for: Kia Optima Brake Rotors and Drums, Kia Optima Shocks and Struts and Kia Optima Springs and Suspension Parts, or browse all Kia Optima parts and accessories.