- Either original equipment in the Comet drive clutches or a popular replacement for trail riding or racing
- 102-C, 108-C and 108-EXP clutches all use the same basic cam arm
- 108 4-PRO clutches use FOUR cam arms. (To find the required cam arm weight, add the weight of three cam arms used in a 108-EXP or other three-post clutch, add 14%, then divide by FOUR. This will give you the required new cam arm weight.)
- When ordering cam arms for a 108 4-PRO clutch, you must order FOUR cam arms to get the correct weight
- Comet arm weight objective is within .75 grams of that listed. Certified weights would be significantly more expensive. The variance may occasionally exceed 2 grams and is a result of greater or lesser arm density.
Fixed Weight: 49.5 g
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2009-2010 | Arctic Cat | Crossfire 600 | |
| 2007-2008 | Arctic Cat | Crossfire 600 EFI | |
| 1994-1996 | Arctic Cat | EXT 580 | |
| 1996-1998 | Arctic Cat | EXT 580 Deluxe EFI | |
| 1997 | Arctic Cat | EXT 580 EFI | |
| 2007-2008 | Arctic Cat | F6 EFI | |
| 2004 | Arctic Cat | F6 Firecat 600 | |
| 2010 | Arctic Cat | M6 153in | |
| 2006 | Arctic Cat | M6 Challenger EFI 141in | |
| 2006 | Arctic Cat | M6 Challenger EFI 153in | |
| 2005 | Arctic Cat | M6 EFI 141in | |
| 2007 | Arctic Cat | M6 EFI 141in | |
| 2005 | Arctic Cat | M6 EFI 153in | |
| 2007-2009 | Arctic Cat | M6 EFI 153in | |
| 2003-2004 | Arctic Cat | Mountain Cat 570 | |
| 2004 | Arctic Cat | Mountain Cat 600 EFI | |
| 2002-2003 | Arctic Cat | Pantera 600 ESR EFI | |
| 1998 | Arctic Cat | Powder Extreme 600 | |
| 1997-1999 | Arctic Cat | Powder Special 600 | |
| 2004-2006 | Arctic Cat | Sabercat 600 LX EFI | |
| 1999-2000 | Arctic Cat | Triple Touring 600 | |
| 2001 | Arctic Cat | Triple Touring 660 | |
| 2000 | Arctic Cat | ZL 580 ESR EFI | |
| 1999-2003 | Arctic Cat | ZL 600 EFI | |
| 1994-1996 | Arctic Cat | ZR 580 | |
| 1998-2002 | Arctic Cat | ZR 600 EFI | |
| 1996-2002 | Arctic Cat | ZRT 600 | |