I am in the market once again to replace the motor in my X5 since the last one has no compression in #6 cylinder. My question is that I have seen motors with 'Interchange part number' 300-70330B for the 2001-2003 X5 and 300-70530B for 2004-2006.


They are both M54 engines so would the motor with the number 300-70530B work in my 2001 X5 and is there a site that details the differences between the two?