Accessory Gear Lycoming 390

[Jetmart]

I have reached out to Lycoming twice now without a response. I am thinking of installing the Monkworkz generator and wondering if my Thunderbolt 390 non EXP would likely have the accessory drive installed from the factory.

 

[dmattmul]

I'm pretty sure they all are EXP or have EXP in their designation. (Some EXP60, EXP98 and EXP119, maybe more?) My 540 TB is designated EXP265. Mine was an early TB 390 and its name plate has EXP98 in it. Until the last 3 yrs. (?) all TB 390's had the accessary gear. I'm pretty sure if it's not a EXP119 it has an accessary gear installed and even it is a EXP119 most have the gear. Removing it to save weight was not a great marketing plan in my view.