Bilstein OEM 4600 vs. Off the shelf 4600

Hi. Any differences between a Bilstein 4600 TRD package shock from the dealer vs a 4600 bought online etc?

I may need to change the front right shock. A trickle leak almost to bottom. 150k miles orig black OE shocks on there now. Truck was bought 1.5 years ago and gets off loaded frequently.

All I want is a smooth plush ride that can go off road just as well. I don't want STIFF. I don't care about that stuff. I have a Sportscar already for that. Thanks All...

 

Dealer is likely selling the same shocks as aftermarket 4600. The OE that came on the truck however is slightly smaller diameter than the ones you buy aftermarket. They are special made for Toyota , like the Wildpeaks on the new Tundras. I would verify the part numbers before buying from Toyota dealer.