Lol! The MPC says one thing and the box says another. But I didn’t see any external mechanical connections, without which I wouldn’t call it a solenoid.
Having said that, Wikipedia says a solenoid is basically an electromagnet. But then it says “In engineering, the term "solenoid" refers not only to the electromagnet but to a complete apparatus providing an actuator that converts electrical energy to mechanical energy”
My understanding fits with that. A solenoid is an electromagnet with a linkage set up to move something. And a relay is an electromagnet connected to a set of contacts that it opens or closes.
Gary, AKA "Gary fellow":
Profile
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI