Arctic Cat, ECU assembly. This is a brand new genuine arctic cat part. Never installed on a snowmobile.

part #3006-683 This ECU is the same as #3006-842 has code 99B50

PLEASE CHECK THE EXISTING ECU IN YOUR SNOWMOBILE BEFORE ORDERING

Fits the following arctic cat snowmobiles, 

• 2004 T660 TURBO TOURING BLACK [S2004ACFTTUSB]
• 2004 T660 TURBO TOURING BLACK INTERNATIONAL [S2004ACFTTOSB]
• 2004 T660 TURBO TOURING TAUPE [S2004ACFTTUSU]
• 2004 T660 TURBO TRAIL BLACK [S2004ACFTSUSB]
• 2004 T660 TURBO TRAIL BLACK INTERNATIONAL [S2004ACFTSOSB]
• 2004 T660 TURBO TRAIL TAUPE [S2004ACFTSUSU]
• 2005 T660 TURBO ST EFI EARLY BUILD [S2005ACFTBEBR]