Interchangeability of Jaguar Alloys

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Zennan101

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Interchangeability of Jaguar Alloys

Postby Zennan101 » Tue Aug 20, 2019 1:38 pm

Hi all,

I’d like to get a second set of Alloys to fit winter tyres. Searching through the various web sites, eBay, Facebook marketplace etc. throws up a lot of possibilities but are full of throw away lines which imply wheels are interchangeable between various models XF & XE, XF & XType and even XF & Ford.
Reading back through the Forum threads it would seem that there are factors such as offset which suggest that just bolting on a set of wheels that is not exactly like for like may not be such a good idea!
Can anyone set out a guide as to what Jaguar model wheels are interchangeable with the XF and are there any other manufacturers (such as Ford) that can be considered.
Wheel sizing and fitting seems to be a ‘black art’ the basics of which has passed me by!

Rod
2010 XF 3.0 Luxury Diesel

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J44EAG

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Re: Interchangeability of Jaguar Alloys

Postby J44EAG » Tue Aug 20, 2019 8:30 pm

Best to stick to Jaguar OE in my opinion. You at least know they are type tested and meet legislative requirements, Rod. Cheap after-market rims may not meet those requirements or that of your insurance company. any mods as we already know, need to be run past the insurance boys. There are plenty of used Jaguar OE rims around and where possible you should try to obtain the OE type for your particular model. It makes size selection so much easier. Correct sizes can be found in your car user manual which lists the ex-factory options in easy read format.

Eurojag would be good guys to consult as you make your choice and may even be able to supply what you need. Their advice, prices, delivery and used parts quality is excellent. Highly recommended. Have your VIN to hand if you call them.

Things to consider.
PCD (Pitch Centre Diameter) This refers to the bolt/stud spacing around the wheel hub. S-type/XF/X350 share the same hubs with a PCD of 108x5. This is the mm space distance from the centre of one stud to the next one as you go around the hub from stud to stud. 108mm is that distance and the 5 tells you the number of wheel studs ie 5 for the above cars. Not some rims have flat washer type wheel nuts whilst others have a taper seat fitting. Nip a nut off the car and see what you have. Getting rims with the wrong nut seating will require you to but an appropriate set of nuts.

Rim J ie 6J, 5J is the width of the rim from tyre bead to tyre bead. Again the manual will tell you the ex-factory options for the various models. One would expect to see a bigger J for the more poweerful cars fitted with larger tyres.

ET is the off set of the rim from the mounting face of the rim to the outside edge of the rim. The manual max J figures will indicate the biggest J rim that you can mount on the car without the outside of the rim fouling the wheel arches. I recall that is in the manual.

Things to watch for. R version cars will have the massive Brembo or Teves four piston calipers fitted. As such, they require 19" or 20" rims so that the inside of the rim does not foul the caliper. These larger rim diameters can be fitted to lesser powered models with normal size brake calipers...however, any rim less than 19" diameter WILL not fit R models. Be assured of that. My old V8 S-type had normal two piston calipers so I was able to fit 19" X350 five spoke "Custom" alloys taken from an X350. However I had to consult a tyre specialist to ascertain the correct size tyre rolling circumference and match that of the original poverty spec 16" rims originally fitted to the car. The X350 rims fitted the hubs, left minimal ET clearance at the wheel arches and needed 30% low profile tyres to retain the original final drive gearing. The set up worked, but only just. It was all a tight squeeze.I recall the widest tyre I could use on the S-type because of the ET was 275. Had I been able to obtain STR rims then typically, I would have had two narrow J rims on the front but hugely wide rims (9J) inside of the hub face. That was a special mod Jaguar did to the STR to get some decent size rubber at the back end of the car.

Does that help?

Mike
X350 Co-ordinator

2004 XJR

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Zennan101

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Re: Interchangeability of Jaguar Alloys

Postby Zennan101 » Tue Aug 20, 2019 9:04 pm

Thanks Mike. You have lightened my darkness with the basics and given me some very useful pointers as to what works for sizing up to larger wheels (which is an option for me) and the no no’s for sizing down to smaller ones (which isn’t the way I’ll be going).
2010 XF 3.0 Luxury Diesel


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