Disco 1 serpentine belt - err6191 or err4461?

I see both of those part numbers listed as the "non-ac" belt for a 3.9 efi engine, but I can't work out what the difference is between them. does anyone know?

I confess I don't even know the correct age of the 3.9 donor engine to reference chassis numbers. I do know that the alternator is an A127-100, but not sure if that is of use.

Thanks

Adam

1/ ERR 6191 is for engine from 36D 50530C and 38D 32140C
2/ ERR 4461 is for engine to 36D 50529 and 38D 32139
That info is in the parts book what the difference is I haven't a clue.

The front of you engine, going by the photo I've seen, is similar to mine, as I have AC I use belt ERR 5579 which is for engines in line 1 above, so unless I had a reason to contradict my theory I would try ERR 6191

I assume you don't have the old belt now as the number on that would help.

discool said:

1/ ERR 6191 is for engine from 36D 50530C and 38D 32140C
2/ ERR 4461 is for engine to 36D 50529 and 38D 32139

The front of you engine, going by the photo I've seen, is similar to mine, as I have AC I use belt ERR 5579 which is for engines in line 1 above, so unless I had a reason to contradict my theory I would try ERR 6191

I assume you don't have the old belt now as the number on that would help.

Click to expand...

nope, don't have the old belt sadly.... in Mr Eales' bin I suspect.

do you know what changed between those chassis numbers? Is it idler differences? alternator difference? something else?