How often are 2019 Sorento plugs replaced?
Every 97,500 miles (156,000 km) on both the 2.4 GDI and the 3.3 GDI.
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In-depth guide
2019 Kia Sorento
2019 Sorento spark plugs are replaced every 97,500 miles on both the 2.4 GDI and the 3.3 GDI. No gap and no part number are printed.
| Item | Figure |
|---|---|
| Theta II 2.4 GDI | Replace every 97,500 miles (156,000 km). |
| Lambda II 3.3 GDI | Replace every 97,500 miles (156,000 km). |
| Heat range | Install new spark plugs of the correct heat range. No gap, torque, or part number is printed. |
| Severe use | Replace more frequently. The severe chart does not print a shorter mile. |
Source: owner's manual / last verified 2026-10-16 (2019 Sorento owner's manual, copyright 2018 Kia Motors America, Inc., printed in the U.S.A. The specifications chapter prints the Theta II 2.4 GDI and the Lambda II 3.3 GDI, plus a 5-seat and 7-seat gross-vehicle-weight table. (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2019 Sorento owner's manual, copyright 2018 Kia Motors America, Inc., printed in the U.S.A. The specifications chapter prints the Theta II 2.4 GDI and the Lambda II 3.3 GDI, plus a 5-seat and 7-seat gross-vehicle-weight table. (opens in a new tab), Kia Motors America, published 2018-01-01, read 2026-10-16.
Torque wrench
No plug torque is printed, so this wrench does not get a number from this book.
| Item | Figure | Where it comes from |
|---|---|---|
| Theta II 2.4 GDI | Replace every 97,500 miles (156,000 km). | Normal maintenance schedule, non-turbo |
| Lambda II 3.3 GDI | Replace every 97,500 miles (156,000 km). | Normal maintenance schedule, non-turbo |
| Heat range | Install new spark plugs of the correct heat range. No gap, torque, or part number is printed. | Explanation of scheduled items |
| Severe use | Replace more frequently. The severe chart does not print a shorter mile. | Severe usage |
Theta II 2.4 GDI and Lambda II 3.3 GDI each print that interval.
The book says to use the correct heat range. It does not print the gap.
Oil is a different interval, on the oil guide.
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Part
Spark plugs of the correct heat range
The schedule prints 97,500 miles for both engines and does not print a number or a gap.
2019 Sorento spark plug schedule (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Tool
Torque wrench
No plug torque is printed, so this wrench does not get a number from this book.
Every 97,500 miles (156,000 km) on both the 2.4 GDI and the 3.3 GDI.
The book does not print one.
The maintenance checklist is on the site now. The email list is not sending yet, so this box will not store an address.
These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.
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