Please see attached photo. Does anyone know for a 6.0 V12 what comes after the 447200 number as my label in unreadable.
Jaguar compressor part No. is I believe MNA7300BA
VIN no is 724639.
The compressor needs new crankshaft bearings and they appear to be special to stop them being able to be repaired. Any clues as to where bearings could be obtained from also gratefully received.

Merry Christmas

Charlie

 

There appears to be no numbers after the 447200 & 10PA on my label also.
It appears the compressor however is Denso 10PA17C & number is most likely 447200-4141, 4143 or 4146. These numbers now appear obsolete.
A replacement unit (from Denso catalogue) is a 471-1350 & most likely way to go.Prices vary depending on supplier so shop around.

John Herbert

 

Atco, did it work? What part did you use to replace it? I find multiple versions, most of them seem not to be matchin when I compaer product pictures. Price range is from 200-1200 USD...

 

Sorry for late reply. I obtained a new compressor for the people doing the repair. It was not correct. I told them not to touch it as i would return it. They took the new one to pieces and tried to make one out of two.
They failed. I sold the car with the air conditioning still broken. Apologies i have no more suggestions apart from try FenAir in the UK.

 

I found 447200-4131 on my XJ12 compressor. That part number doesn't show on the Denso website, but they list part number 471-1349 for the XJ12. Apparently they have it available for $220. RockAuto has it for $200.

The photos of the XJ6 and XJ12 compressors seem to be swapped on the Denso site. The picture of the XJ6 compressor (471-1350) looks like the right one for the XJ12! I bet a lot of companies use the info directly from the Denso site and hence don't show the correct photo. This is true for the RockAuto listings.

I am wondering if the compressor is the same for the 6 and the 12, with the exception of the mounting bracket, hose inlet/outlet plate, and clutch/pulley. In that case those parts could be swapped between the two. I know they are both Denso 10PA.

 

This is among the saddest replies I could have imagined. I am very sorry for your loss and I hope my story turns out differently...

I bought a Denso compressor from eBay USA for abount 200 USD and had it shipped to Germany. Denso Germany could not identify this type, US seems to have different specs. I havent checked profoundly yet, but it looks similar to mine. If I find the time and you guys are interested, I could post some pics here so you can see it it would fit your cars.

 

Very interested please do so.

 

okay, good you asked. I had scheduled an appointment already for putting the parts in and havent looked in the box yet. It is a completely different part...


This is what it should have been:


and this is what I took from the box:








Okay, that didnīt work out too well.

 

Boller,

You got the 1350 for the XJ6. You need the 1349 for the XJ12. I agree, the first photo is what you wanted. John Herbert quoted the 1350 back in 2016, but he might have been thinking of the XJ6. After all this is the XJ6 section! Adding to this confusion, the photos of the two compressors on many websites are swapped. Sorry to see this happen.

I'm sure you can return it and get the correct one before the summer heat sets in. Or, go ahead and swap the pulley and hose plate with your old one!

 

I finally realize, this is the wrong forum, sorry for that. I was lured in by the title of this post...

SleekJag12, Iīm afraid you are right, Denso might have swapped the pictures for the two compressors and many retailers have continued this mistake. The original part numbers given to me by jaguar also donīt lead to the correct parts, as it seems. At least the pictures also show the narrow pulley.

Denso Germany says, all compressors are available aftermarket - but not for for the XJ12. This one only Jag is selling for 2200€.
Iīm a bit confused now. And sad.

 

Boller,
If you swap the two cover plates over between the two compressors and then do the same with the pulley and the clutch assembles, won't it bolt straight on?

New generic fit compressors are sold with a simple cover plate just to keep the internals clean and the pre-charge of oil on the inside. As for the front pulley and clutch assembly, that should be a simple swap as well as it only involves removing one bolt and a circlip. Just don't lose the small spacer shims!

You will be surprised how simple this is, I promise!

There are a lot of YouTube video showing the rebuilding of ND compressors if you want a run through beforehand on changing the pully assembly. Search Denso 10PA

If that doesn't work, have you thought about just rebuilding the old compressor? Assuming there hasn't been a catastrophic failure they don't really wear out and rebuild kits are very cheap. I've just rebuilt the one in my X300 XJ6 successfully. (Just have to replace some leaking service valves now!) I found Century Auto Air in the US good for parts.

 

the compressor works (almost) perfectly fine, it just makes a bit noise and vibration, I guess a bearing is bad. I am repairing on this jag since I have it and this is a damage now on top of the list.
I have no expertise on compressors and I am not sure where exactly the noise is coming from, so I thought the easiest is to replace as much as possible of it.

My compressor has ac cable on the bottom, the new one only one at the top. Also there seems another elecctric part on top of mine what I can not find on the new one.

 

Boller,
Does the compressor make a grumbling noise all the time or only when the compressor clutch engages and the mechanism inside the compressor housing turns as well?

If the compressor makes a noise all the time, the pulley bearing will need to be replaced before it is swapped over to your new compressor.

As for the different electrical connection, when you swap over the pulley clutch assembly, you also swap over your old magnetic clutch as well so you will end up reusing your old electrical connector as well

Since fitting the old cover plate and old pulley clutch assembly (with maybe a new bearing as well) is quick to do, it won't cost that much more for a mechanic to do the whole lot for you as you'll need a AC mechanic to regas the system anyway.

If you lived a bit closer and bought me a case of good German beer, I'd have it done in an hour!

 

Boller,
Actually, the bearing in the new pulley will probably be the same size as the one in your old pulley. So if you can remove the new bearing without damaging it, it could be reused.

 

I like your confidence, but Iīm afraid Iīm far from being able to pull this off. Iīm afraid one I loosen one bolt, all will explode in my face.

Sadly I can remember testing the noise with clutch on and off - but donīt remember the result...
If it would be that bearing - couldnīt I just replace this single one, not touching any other parts? Maybe I look out for a used compressor and try the repair on that one, before ripping apart mine.

 

Yes, if the pulley bearing is the cause of the noise, replacing it is certainly the cheapest option. I've assumed that since you have a replacement compressor your preference was to replace the existing compressor.

Instead of buying another to learn on, have a look at some of the YouTube clips like the ones from Centurybob from Century Auto Air. There are also some Russian ones which were pretty informative too, even though I had no idea on what they were saying.....