2024 GMC Sierra 1500 Spark plugs
Depends on your version. Choose yours, or compare them here.
- 2.7L L4 (L3B) 0.026–0.030 in gap
- 5.3L V8 (L84) and 6.2L V8 (L87) 0.037–0.043 in gap
0.026–0.030in
Gap · 2.7L L4 (L3B)
0.037–0.043in
Gap · 5.3L V8 (L84) and 6.2L V8 (L87)
2024 GMC Sierra 1500 Owner's Manual, PDF page 446
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) · 2.7L L4 (L3B) · PDF page 446
0.65–0.75 mm (0.026–0.030 in)
Spark plugs (gap) · 5.3L V8 (L84) and 6.2L V8 (L87) · PDF page 446
0.95–1.10 mm (0.037–0.043 in)
2024 GMC Sierra 1500 Owner's Manual, PDF page 446
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) · 2.7L L4 (L3B) · PDF page 446
0.65–0.75 mm (0.026–0.030 in)
2024 GMC Sierra 1500 Owner's Manual, PDF page 446
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) · 5.3L V8 (L84) and 6.2L V8 (L87) · PDF page 446
0.95–1.10 mm (0.037–0.043 in)
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 2.7L L4 (L3B) | 0.026–0.030 ingap | “0.65–0.75 mm (0.026–0.030 in)” | PDF page 446 ↗ |
| 5.3L V8 (L84) and 6.2L V8 (L87) | 0.037–0.043 ingap | “0.95–1.10 mm (0.037–0.043 in)” | PDF page 446 ↗ |
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