The EGR valve is located in the center of the engine on a F150 Lariat 5.4 liter. It is near the firewall.
Since you put this in cars and vehicles I am going to say it's a Ford f150 Lariat with all the options, then pick one of everything from the accessory aisle at the auto parts store and stick it on there.
Mine was located under the hood on the passenger side fender well close to the battery.
It's inside the plastic housing between the engine air filter and the big rubber engine air intake tube
$9,500.00
2000 F150 Harley-Davidson
25 gallons with the short wheel base / 30 gallons with the long wheel base
eBay
5W-20 engine oil in the 4.6 liter and 5.4 liter engines in a 2010 Ford F-150
Mine is 265/70r17
Under the seat ( according to the Owner Guide )
275/65/r18t