Koito 39000-20791 Subaru 84965AG000 Xenon Ballast

Koito 39000-20791 Subaru 84965AG000 Xenon ballast control unit.

Subaru 84965AG000 Xenon Light ballast is factory fitted to Subaru cars with Xenon Headlights and D2S or D2R 35W HID gas discharge bulbs.

Never use higher wattage bulbs as it might burnt bulb igniter, only 35W.

Koito 3900020791 ballast comes with integrated bulb holder.

If your Xenon lights are blinking, shutting down or not turning on at all it could be that xenon headlamp ballast has failed.

Before replacing ballast we always recommend to double check HID bulb as sometimes bulb fails as well.

Direct replacement for old Subaru part, no modifications are required

Koito part numbers:

• 39000-20791
• 3900020791

Subaru part numbers

• 84965AG000
• 84965-AG000

More compatible part numbers

• 39000-20953
• 3900020953
• 39000-20751
• 3900020751
• 84965-AG010
• 84965AG010
• 84965AE020
• 84965-AE020

Compatibility list

• Subaru Legacy BL 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
• Subaru Legacy BP IV MK4 Estate
• 2.0 2.5 AWD diesel
• Subaru Outback BS 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
• 3.6L Petrol Gasoline

Please note: This list is not full, it may fit other car models as well, please check provided part numbers, pictures and compare to your old parts.