2003 Kia Sorento
Maintenance & specsVERIFIED Jun 15, 2026
The 2003 Kia Sorento takes 5W-20 Conventional with a total capacity of 4.8 quarts (filter included). You’ll need a 17mm socket for the drain plug, torqued to 35 Nm. The OEM oil filter is the Kia 26300-35503, with 2 compatible alternatives listed below. Note: this vehicle has 1 active recall — check the recalls section below. Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.
⚑ QUICK DIY TIPS FOR THE 2003 KIA SORENTO
- Torque your drain plug to 35 Nm (26 ft-lbs) to avoid leaks or stripped threads.
- Using the OEM filter (Kia 26300-35503) is recommended for warranty compliance.
- Always use 5W-20 Conventional as specified by Kia — using the wrong viscosity can void your powertrain warranty.
- Check the maintenance schedule below for your next service interval.
01
Oil & Filter
02
Fluid Specifications
03
Parts & Specifications
Spark Plugs
TypeIridium
Gap0.044
Quantity4
Change interval100,000 mi
Tires
Size215/55R17
Front pressure33 PSI
Rear pressure33 PSI
04
Maintenance Schedule
≈ every 6 months
- ▸Change Engine Oil & Filter
05
Torque Specifications
06
Safety Recalls
107
Technical Service Bulletins
19Towing & Payload
Max Towing
3,500lbs
Max Payload
1,046lbs
Curb Weight
3,800lbs
GVWR
5,000lbs
Max Tongue Weight
350lbs
Hitch Class
II
Source: manufacturer
Estimated Current Value
Original MSRP
$30,000
Private Party
$2,565–$2,835
Dealer Retail
$2,970–$3,375
Trade-In
$2,295–$2,565
Depreciation
91%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Save by doing it yourself
A shop typically charges $70–$140 for this service. Buy the parts and save.
08
Tools & Supplies
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