What spark plugs does a 2019 Traverse use?
2.0L: ACDelco 41-125, gap 0.030 to 0.035 in. 3.6L: ACDelco 41-109, gap 0.037 to 0.043 in.
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In-depth guide
2019 Chevrolet Traverse
2019 Traverse plugs are ACDelco 41-125 on the 2.0L and 41-109 on the 3.6L. Gaps are 0.030 to 0.035 in and 0.037 to 0.043 in.
| Item | Figure |
|---|---|
| 2.0L, VIN X | GM 12647827, ACDelco 41-125. Gap 0.75–0.90 mm (0.030–0.035 in). Automatic transmission. |
| 3.6L, VIN W | GM 12622561, ACDelco 41-109. Gap 0.95–1.10 mm (0.037–0.043 in). Automatic transmission. |
| Schedule | The normal chart has a separate replace-spark-plugs row for the 2.0L and for the 3.6L. The mile-column headers did not survive extraction, so no mile is stated. |
Source: owner's manual / last verified 2026-10-16 (2019 Chevrolet Traverse owner's manual, part number 84149414 A, First Printing. The header reads Traverse Owner's Manual. For vehicles first sold in Canada, the book says to substitute General Motors of Canada Company for Chevrolet Motor Division. (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 Chevrolet Traverse owner's manual, part number 84149414 A, First Printing. The header reads Traverse Owner's Manual. For vehicles first sold in Canada, the book says to substitute General Motors of Canada Company for Chevrolet Motor Division. (opens in a new tab), General Motors, published 2019-01-01, read 2026-10-16.
| Item | Figure | Where it comes from |
|---|---|---|
| 2.0L, VIN X | GM 12647827, ACDelco 41-125. Gap 0.75–0.90 mm (0.030–0.035 in). Automatic transmission. | Replacement parts and engine specifications |
| 3.6L, VIN W | GM 12622561, ACDelco 41-109. Gap 0.95–1.10 mm (0.037–0.043 in). Automatic transmission. | Replacement parts and engine specifications |
| Schedule | The normal chart has a separate replace-spark-plugs row for the 2.0L and for the 3.6L. The mile-column headers did not survive extraction, so no mile is stated. | Maintenance schedule |
2.0L VIN X uses 41-125, gap 0.030 to 0.035 in. 3.6L VIN W uses 41-109, gap 0.037 to 0.043 in.
The chart marks the rows. The headers did not survive.
Oil filters are on the oil guide.
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Part
ACDelco 41-125 spark plug
GM 12647827. 2.0L, gap 0.030 to 0.035 in.
2019 Traverse 2.0L plugs (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Part
ACDelco 41-109 spark plug
GM 12622561. 3.6L, gap 0.037 to 0.043 in.
2019 Traverse 3.6L plugs (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
2.0L: ACDelco 41-125, gap 0.030 to 0.035 in. 3.6L: ACDelco 41-109, gap 0.037 to 0.043 in.
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