2014 GMC Yukon and Yukon XL Spark plugs

Depends on your version. Choose yours, or compare them here.
- 5.3L V8 (LMG) 0.040 in gap
- 6.0L V8 (L96) 0.040 in gap
0.040in
Gap · 5.3L V8 (LMG)
0.040in
Gap · 6.0L V8 (L96)
2014 GMC Yukon and Yukon XL Owner's Manual, PDF page 451
1.02mm (0.040 in)Open the manual at this page ↗Added Oct 15, 2026 · Updated
See where it's printed
Spark plugs (gap) · 5.3L V8 (LMG) · PDF page 451
1.02mm (0.040 in)
Spark plugs (gap) · 6.0L V8 (L96) · PDF page 451
1.02 mm (0.040 in)
2014 GMC Yukon and Yukon XL Owner's Manual, PDF page 451
1.02mm (0.040 in)Open the manual at this page ↗Added Oct 15, 2026 · Updated
See where it's printed
Spark plugs (gap) · 5.3L V8 (LMG) · PDF page 451
1.02mm (0.040 in)
2014 GMC Yukon and Yukon XL Owner's Manual, PDF page 451
1.02 mm (0.040 in)Open the manual at this page ↗Added Oct 15, 2026 · Updated
See where it's printed
Spark plugs (gap) · 6.0L V8 (L96) · PDF page 451
1.02 mm (0.040 in)

See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 5.3L V8 (LMG) | 0.040 ingap | “1.02mm (0.040 in)” | PDF page 451 ↗ |
| 6.0L V8 (L96) | 0.040 ingap | “1.02 mm (0.040 in)” | PDF page 451 ↗ |
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