2005 GMC Envoy , GMC Envoy XL and Envoy Denali Spark Plugs
2005 GMC Envoy , GMC Envoy XL 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.
- VORTEC 4200 L6 0.042 inches gap
- VORTEC 5300 V8 0.040 inches gap
0.042inches
Gap · VORTEC 4200 L6
0.040inches
Gap · VORTEC 5300 V8
2005 GMC Envoy , GMC Envoy XL and Envoy Denali Owner's Manual, PDF page 456
0.042 inches (1.07 mm)Open the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed
Spark plugs (gap) · VORTEC 4200 L6 · PDF page 456
0.042 inches (1.07 mm)
Spark plugs (gap) · VORTEC 5300 V8 · PDF page 456
0.040 inches (1.01 mm)
2005 GMC Envoy , GMC Envoy XL and Envoy Denali Owner's Manual, PDF page 456
0.042 inches (1.07 mm)Open the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed
Spark plugs (gap) · VORTEC 4200 L6 · PDF page 456
0.042 inches (1.07 mm)
2005 GMC Envoy , GMC Envoy XL and Envoy Denali Owner's Manual, PDF page 456
0.040 inches (1.01 mm)Open the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed
Spark plugs (gap) · VORTEC 5300 V8 · PDF page 456
0.040 inches (1.01 mm)
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| VORTEC 4200 L6 | 0.042 inchesgap | “0.042 inches (1.07 mm)” | PDF page 456 ↗ |
| VORTEC 5300 V8 | 0.040 inchesgap | “0.040 inches (1.01 mm)” | PDF page 456 ↗ |
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