http://4btswaps.com/forum/showthread.php?t=750The Pump in the picture has the Wax Motor KSB. Its the cylinder looking part with the tube coming off the top and the electrical contact on the right end. You may have the selinoid type KSB which does look a little different.
Regarding your question on the KSB Solenoid. In the picture the KSB is the Wax Motor Style, not Solenoid. Its purpose/function is as follows;'
Quote from Cummins Shop Manual B3.9 and B5.9 Series Engines
Section 5 - Fuel System - Group 5
"Cold Start Timing Advance System (KSB)
Need for KSB on VE Pumps
Emission requirements for 1988 prompted the need for a cold start timing advance system (KSB) to minimize white smoke.
After the engine starts, the Wax Motor Style KSB fully advances the ignition timing at low idle until the engine warms up. The KSB is not functional after the engine reaches 71 degrees C or 160 degrees F coolant temperature."