2021 GMC Acadia Spark plugs
Depends on your version. Choose yours, or compare them here.
- 2.0L L4 Engine (LSY) 0.026–0.030 in gap
- 2.5L L4 Engine (LCV) 0.037–0.043 in gap
- 3.6L V6 Engine (LGX) 0.031–0.035 in gap
0.026–0.030in
Gap · 2.0L L4 Engine (LSY)
0.037–0.043in
Gap · 2.5L L4 Engine (LCV)
0.031–0.035in
Gap · 3.6L V6 Engine (LGX)
2021 GMC Acadia Owner's Manual, PDF page 362
0.65–0.75 mm (0.026–0.030 in)Open the manual at this page ↗Added Oct 15, 2026 · Updated
See where it's printed
Spark plugs (gap) · 2.0L L4 Engine (LSY) · PDF page 362
0.65–0.75 mm (0.026–0.030 in)
Spark plugs (gap) · 2.5L L4 Engine (LCV) · PDF page 362
0.95–1.10 mm (0.037–0.043 in)
Spark plugs (gap) · 3.6L V6 Engine (LGX) · PDF page 362
0.80–0.90 mm (0.031–0.035 in)
2021 GMC Acadia Owner's Manual, PDF page 362
0.65–0.75 mm (0.026–0.030 in)Open the manual at this page ↗Added Oct 15, 2026 · Updated
See where it's printed
Spark plugs (gap) · 2.0L L4 Engine (LSY) · PDF page 362
0.65–0.75 mm (0.026–0.030 in)
2021 GMC Acadia Owner's Manual, PDF page 362
0.95–1.10 mm (0.037–0.043 in)Open the manual at this page ↗Added Oct 15, 2026 · Updated
See where it's printed
Spark plugs (gap) · 2.5L L4 Engine (LCV) · PDF page 362
0.95–1.10 mm (0.037–0.043 in)
2021 GMC Acadia Owner's Manual, PDF page 362
0.80–0.90 mm (0.031–0.035 in)Open the manual at this page ↗Added Oct 15, 2026 · Updated
See where it's printed
Spark plugs (gap) · 3.6L V6 Engine (LGX) · PDF page 362
0.80–0.90 mm (0.031–0.035 in)
See every quote (3 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 2.0L L4 Engine (LSY) | 0.026–0.030 ingap | “0.65–0.75 mm (0.026–0.030 in)” | PDF page 362 ↗ |
| 2.5L L4 Engine (LCV) | 0.037–0.043 ingap | “0.95–1.10 mm (0.037–0.043 in)” | PDF page 362 ↗ |
| 3.6L V6 Engine (LGX) | 0.031–0.035 ingap | “0.80–0.90 mm (0.031–0.035 in)” | PDF page 362 ↗ |
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