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02 · IG Ignition and tune-up · Toyota Highlander
Toyota Highlander spark plugs
for 2020–2024 model years · what changes the fit
01 About the part
Fire the air and fuel mix in each cylinder. Most modern engines use iridium or platinum plugs with long service intervals. All about spark plugs →
02 What changes the fit
- The fourth-generation (XU70) Highlander went on sale in the U.S. in December 2019 as a 2020 model, so every model year on this page is the same generation. source
- 3 spark-ignition engines across 2020–2024: 2.4L 4-cyl turbo (gasoline, 2023–2024); 2.5L 4-cyl (hybrid, 2020–2024); 3.5L 6-cyl (gasoline, 2020–2022). EPA fuel economy records
- Plug count, gap, and heat range come from the engine maker. Check your owner's manual or enter your VIN; don't go by cylinder count alone.
- EPA rates 2 Highlander versions separately for these years: Highlander Hybrid, Highlander Hybrid LTD/PLAT.
Engines, 2020–2024
| Engine | Cylinders | Fuel | Years | Source |
|---|---|---|---|---|
| 2.4L 4-cyl turbo | 4 | gasoline | 2023–2024 | EPA |
| 2.5L 4-cyl | 4 | hybrid | 2020–2024 | EPA |
| 3.5L 6-cyl | 6 | gasoline | 2020–2022 | EPA |
NHTSA recalls · ignition
NHTSA lists no ignition recalls for the 2020–2024 Toyota Highlander as of 2026-11-08. NHTSA recalls
03 Cross-reference
Coming soon
Interchange numbers for Toyota Highlander spark plugs show here once we have a source we can cite. Until then, enter your VIN in the factory parts catalog to get the original-equipment number, and compare that number across stores.
04 Questions
Which Toyota Highlander engines does this cover?
2020–2024: 2.4L 4-cyl turbo, 2.5L 4-cyl, 3.5L 6-cyl, as listed in EPA records.
Any Toyota Highlander recalls for ignition?
None for 2020–2024 in NHTSA's records, checked 2026-11-08.
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Guides: Ignition and tune-up · Toyota and other makes: official parts catalogs · Find the right part
Facts on this page: engines from fueleconomy.gov (U.S. DOE and EPA); recalls from NHTSA, checked 2026-11-08. Prices come only from the retailers and the live eBay listings.