General description These 3/8' 7T rim pinions are designed for various Husqvarna and STIHL chainsaw models, providing reliable performance and compatibility. Each package includes four rim pinion gears, ensuring you have enough parts for maintenance or replacement. Technical specifications Inner hole diameter: 22mm Pitch: 3/8 inch Teeth: 7 Standard hole with 7 splines Compatibility and accessories Compatible with Husqvarna models: 61, 66, 77, 160, 162, 163, 180, 181, 185, 260, 263, 266, 268, 272, 280, 281, 285, 288, 298, 355, 357, 357EPA, 357XP, 359, 359EPA, 362, 365, 371, 372, 372XP, 372XPG, 380, 385XP, 385XPG, 390XP, 390XPW, 395X, 394XP, 3XP, 5X570, 576XPW, 1100, 2100, 2101 Compatible with STIHL models: 046, 064, 066, MS361, MS362, MS440, MS441, MS460, MS660 Other information Manual measurement may result in a deviation of 1-2mm.