Spark Plug Specifications
SPARK PLUG SPECIFICATIONS
| Application | Specification | ||
|---|---|---|---|
| Spark Plug Type | |||
| 4.2L | |||
| AC | 41-965 | ||
| 5.3L | |||
| AC | 25171803 | ||
| NGK | 12567759 | ||
| Gap | |||
| 4.2L | 0.0425" (1.08 mm) | ||
| 5.3L | Iridium .040 in. (1.04 mm) Platinum .060 in. (1.52 mm) |
||
| Tightening Torque | |||
| 4.2L | 13 Ft. Lbs. (18 N.m) | ||
| 5.3L | 11 Ft. Lbs. (15 N.m) | ||
| Firing Order | |||
| 4.2L | 1-5-3-6-2-4 | ||
| 5.3L | 1-8-7-2-6-5-4-3 | ||