.060 (In thousandths of an inch)
This year has 3 different engines listed.
The spark plug gap in your 1999 Chevrolet suburban is dependent upon the type of engine. The standard engine spark plug gap is .011.
The standard spark plug gap for a 99 Plymouth Breeze is between 0.035 and 0.040 inches. The specific gap varies based on the type of size of plug used.
the specified gap for a 99 for explorer is (.054). If you set it a little closer the spark plug will last longer. exp.(.045).
Br9eix
.060
0.043 inch
.40
.060
What's the gap size for a 1.6 Mazda
between 50 and 57
0.044
.052-.056