Radiator Pressure Testor (2003-2006) XKR's
 

Does anyone know what pressure tester or adapters are needed to pressure test our 2003-2006 XKR's? Since I don't have a pressure tester, I need to buy a kit / adapters anyhow. So if anyone has done it successfully on a 4.2 liter SC, let me know what you used. Thanks.
I did see links for the Assenfacher fz 37 from others that had earlier models, and everything I find online say it only fits Jaguar - XK8 1998 - 2001.

I am using the Stant system w/ part nos. 12023 adapter and it works great!

Radiator Pressure Testor (2003-2006) XKR's
 

Thanks Gordo,
But does that one work on 2003-2006 XKR's? I know that the XKR expansion tank is different than the XK8, and not sure if they are both different on the 4.2L's vs the 2002 and earlier 4.0L's.

Many auto parts stores will 'loan' you one for FREE!

Of course you have to buy the kit and they will give you your money back when you bring it back. The kit from my local Advance AP store has 19 conversion pieces and only the universal one worked on my car. But it did work.

Use the Stant homepage parts locator:

Parts Locator