Spark Plug Specifications
SPARK PLUG SPECIFICATIONS
| Application |
Specification |
| Spark Plug Type |
| 5.3L |
AC 25171803 or NGK 12567759 |
| Gap |
Iridium .040 in. (1.04 mm)
Platinum .060 in. (1.52 mm) |
| Tightening Torque |
11 Ft. Lbs. (15 N.m) |
| Firing Order |
1-8-7-2-6-5-4-3 |