| Chassis |
Engine |
Years |
Part
# |
Bracket Type |
Pulley |
PCM |
| Kodiak/TopKick C4500/C5500 |
6.6 Diesel Duramax |
2003 - 2010 |
6600526 |
OE position, or aftermarket bracket |
52 mm 6-groove
pulley. |
Non-PCM |
| Savana/Express G3500/C4500 |
6.6 Diesel Duramax |
2003 - 2010 |
66GMCSC6-FS |
OE position, or aftermarket bracket |
52 mm 6-groove
pulley. |
Non-PCM |
| Kodiak/TopKick C4500/C5500 |
8.1 Vortec |
2003 - 2010 |
8100526 |
OE position, or aftermarket bracket |
52 mm 6-groove
pulley. |
Non-PCM |
| Savana/Express G3500/C4500 |
8.1 Vortec |
2003 - 2010 |
8100526 |
OE position, or aftermarket bracket |
52 mm 6-groove
pulley. |
Non-PCM |
| Savana/Express G3500/C4500 |
6.0 Vortec |
2003 - 2010 |
66GMCSC6-FS |
OE position, or aftermarket bracket |
52 mm 6-groove
pulley. |
Non-PCM |
| Topkick C5500/Jayco |
6.6 Vortec |
2008 |
6600526-648 |
OE position |
48 mm 6-groove
pulley. |
Non-PCM |
| Savana/Express G3500/4500 |
6.0 Vortec |
2003 - 2010 |
66GMCSC6-FS-BSI |
aftermarket bracket with reclock |
52 mm 6-groove
pulley. |
Non-PCM |