HP 419163-001 - Top cover - Surrounds keyboard and touchpad (nc4400) - Includes bracket and cable for the touchpad - Does NOT include touchpad Retail
HP 917052-001 - TouchPad assembly (Smoke Gray color) - Does not include the TouchPad bracket or the TouchPad cable Retail
HP 917051-001 - TouchPad assembly (Radiant Red color) - Does not include the TouchPad bracket or the TouchPad cable Retail
HP 419165-001 - Touchpad button kit - Contains four replacement touchpad buttons - Does NOT include touchpad, cable, or bracket Retail