2009 GMC Envoy and Envoy Denali Spark Plugs
2009 GMC Envoy and Envoy Denali spark plugs for each version, from the owner's manual with page references. Values differ by version; see each version.
Depends on your version. Choose yours, or compare them here.
- 4.2L L6 0.040 in gap
- 5.3L V8 0.040 in gap
0.040in
Gap · 4.2L L6
0.040in
Gap · 5.3L V8
2009 GMC Envoy and Envoy Denali Owner's Manual, PDF page 423
0.040 in (1.01 mm)Open the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed
Spark plugs (gap) · 4.2L L6 · PDF page 423
0.040 in (1.01 mm)
Spark plugs (gap) · 5.3L V8 · PDF page 423
0.040 in (1.01 mm)
2009 GMC Envoy and Envoy Denali Owner's Manual, PDF page 423
0.040 in (1.01 mm)Open the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed
Spark plugs (gap) · 4.2L L6 · PDF page 423
0.040 in (1.01 mm)
2009 GMC Envoy and Envoy Denali Owner's Manual, PDF page 423
0.040 in (1.01 mm)Open the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed
Spark plugs (gap) · 5.3L V8 · PDF page 423
0.040 in (1.01 mm)
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 4.2L L6 | 0.040 ingap | “0.040 in (1.01 mm)” | PDF page 423 ↗ |
| 5.3L V8 | 0.040 ingap | “0.040 in (1.01 mm)” | PDF page 423 ↗ |
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