2004 Kia Optima: trims, real prices & how to pick yours

2 builds left the factory as a 2004 Optima, each a different combination of engine, transmission and body identified by the first eight characters of its VIN.

  • 2 main configurations
  • 2,020 vehicles built
  • 8 for sale right now

Which Optima is yours?

Enter a VIN — the 17 characters on the windshield or the title — and we’ll match it to its exact factory configuration, typical price and equipment.

Works with any VIN — a different year or model takes you straight to its own page.

Pick your Optima

What actually differs

Base configuration KNAGD126-4 Base configuration KNAGD128-4
Engine 2.4L 2.7L 6-cyl
Vehicles built 1,067 953
Same on every 2004 Optima
  • Fuel Gasoline
  • Body Sedan
  • Doors 4-door
  • Typical price today $4,000
  • For sale right now 4
Cost to run

19/27 mpg city/highway. Roughly $2,110/yr on fuel at 15,000 miles.

EPA estimate for the 2004 Optima

Safety, in plain English

What KNAGD126-4 means

KNA GD126 · 4
KNA
the World Manufacturer Identifier Kia registered — assembled in South Korea
GD126
together encode the Optima line — Sedan, 2.4L — as Kia filed it, these five characters are read as one block, not letter by letter
4
in position 10 — model year 2004
9, 11–17
differ on every car: check digit, plant code and the serial number

Already looking at a specific Optima?

Paste its VIN — we’ll open that exact car’s page: its configuration, market position and every listing we’ve tracked.