Walker Original Part, a halogen light kit.
Fits walker Models T, D
The kit includes the following:

1 1 7993-1 Mount Bracket, Lights
2 2 7989-2 Light Assembly (Halogen)
3 1 n/a --LIGHT KIT WIRE ASSY
4 1 5996-4 16-14 GA Bullet Cntr. (M) (Insulated), 5996-5 (F)
5 1 5975-1 Cable Tie (18#x3-3/4")
6 2 5977-1 Grommet (1/8x3/8)
8 2 F009 5/16-18 Whiz Locknut
9 2 F052 5/16 Ext. Star Lock Wshr
10 8 7834-2 Wire Saddle (2 Wires)
12 2 7993-2 Light Bar Doubler
13 2 F226 5/16-18x7/8 Hex Bolt
This kit has been replaced by 7989-14. The new light bar uses LED Lights