![background image](/i/gmc/151865/gmc-sierra-2500hd-2015/h/gmc-sierra-2500hd-2015-495.png)
Black plate (4,1)
GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 6/5/14
12-4
Technical Data
Engine Specifications
Engine
VIN Code
Spark Plug Gap
4.3L V6 (LV3)
H
0.95
–
1.10 mm (0.037
–
0.043 in)
4.3L V6 (LV1)
P
0.95
–
1.10 mm (0.037
–
0.043 in)
5.3L V8 (L83)
C
0.95
–
1.10 mm (0.037
–
0.043 in)
6.0L V8 (L96)
G
0.95
–
1.10 mm (0.037
–
0.043 in)
6.2L V8 (L86)
J
0.95
–
1.10 mm (0.037
–
0.043 in)