Western 52452 Dual Knob Controller Tailgate Spreader Pro-Flo 525 900

Western Spreader Controller Kit # 52452. If you need the kit with the 52345 bracket, then you need kit 52450.

This control is used with the Western Pro-flo 525 and Pro-flo 900. It has two knobs to control the width of the material spread and the speed by which it is spread, as well as buttons to turn on and off the vibrator, lights, strobe lights and the pre-wet system.

These have the 3.0 Program on them.  You can also use the 99534 with the 4.0 program in its place. 

This has a 4 pin plug that plugs into harness 69902.

Other than the name on the controller this is the same as the Snowex 52460, 52462 and Fisher 52442, 52440.

Here is a link to the owners manuals

Parts list  PRO-FLO™ 525 Low-Profile Tailgate Spreader #91800 - Hopper & Drive Components (SN# 150601- 160729)

Parts list  PRO-FLO 525/900 Serial #160801- 170503 #91800/91850