Well.....over the years he has used a lot of different kit.
For the last few years he has used a selection of Telecasters.....most fitted with a Gibson PAF in the neck.............the bridge pups are normally standard fitment.
As a slight aside here are my pair............
Keith rarely uses any pedals or effects............he plugs directly into Fender Twins and Bassman...................he runs them in pairs and likes to have one clean and the other dirtied up a bit and then blends them to get the tone he wants................although on 'Satisfaction' he did use a fuzz box......don't think he uses one live on that song, now, though.
I do not know why he has the Gibsons fitted to the Teles', it has always been a mystery to me, as I have never seen a photograph of him playing and the switch being in anything other than the bridge position........even on video's...always the bridge.
I happen to think the Telecaster looks cool with the humbucker in the neck though.
I play mine through a Bassman and my AD50 Vox on the Twin setting and they are just awesome...............My 52ri is fitted with a CS Nocaster in the bridge....not your normal 7.2k one but one of the earlier 10k ones........it is an awesome guitar..............
A few of Keefs........