Looked through the WM I’ve got, but can’t find this part listed. Photos attached. I knew it as the EGR Over-run Cut-off valve, but doesn’t come up on search. The flap drive cog has lost a tooth, so it’s U/S. 2016 Vogue SE SDV8. Thanks Guys, appreciate your help.

The part in your gallery is what most would call the throttle body ... search for l405 4.4 throttle body and it will show up parts matching it. Don't know the part numbers though. On most sites, it would fall under fuel / intake sections.

Unsure if you can get specific cogs for it, but a quick look online suggests that cogs repair kits are avaliable for some makes, so you could get lucky and find something matching if you were to know the size you're looking for.

Lets be honest, its likely a common manufacturer part ( like bosch etc ) so it'll likely be used in other cars too. V8 or else ...

Thanks fisha - doh, obvious now you mention it. The one on my V8 TVR is round the side and looks totally different hence my confusion.