I am needing to replace my SAI Pump on my 2004 Disco.
Where is the best place to pick up on of these and is there really a difference between the to-2002 and 2003-2004 unit?

Thank you in advance,

 

I think it's just the bracket that is different.

 

I replaced mine last winter with a rebuilt unit from a company in CA. You have to send your old one to them within a couple of weeks of recieving theirs. I can't remember the name of the company. I think I found them on Ebay. I've had no problems with it so far and I saved a lot of money over purchasing new. I will continue looking. They provided rebuilt units for other European vehicles (BMW) as well.

 

I found the website. They are out of Maryland.

Rebuilt Air Pump.com

 

UPDATE - I purchased a rebuilt SAI pump from rebuiltairpumps.com and it seems to be good value. Rubuilt with a 2 year warranty for $149.00.
Bolted it in and she's running perfectly. Now i just have to replace the two check valves that control the system. Hope this helps.