Mahle part numbers

dpetteng · 02-21-2015, 07:21 AM

I am looking for a euro set of 3. pistons from mahle and there seems to be a few different part numbers, any idea what the differences are:

930 103 989 07
930 103 990 01
930 103 990 4

dpetteng · 02-22-2015, 02:07 PM

Anyone?

Steve@Rennsport · 02-22-2015, 03:56 PM

The differences are mainly compression ratio.

dpetteng · 02-22-2015, 04:36 PM

Thanks Steve, the weird thing is they are all listed as "Euro" 10.3:1 sets.

Strange..

Steve@Rennsport · 02-22-2015, 10:16 PM

What year is your engine?

dpetteng · 02-23-2015, 04:10 AM

Mine is a 1987

Steve@Rennsport · 02-23-2015, 07:18 AM

Ahhhh,..you have a 3.2, not a 3.0 engine (read your original post).

Still,...the differences are CR so your choice will depend on what octane fuels you use.

dpetteng · 02-23-2015, 10:18 AM

Thanks Steve, I can see my typo thanks. I can get 99 octane fuel in the UK so just trying to figure the best cylinders and pistons for that

dpetteng · 02-24-2015, 04:43 AM

So after a bit more research I found that 930 103 990 01 is the US 217hp version (even though they are advertised as the euro versions).

the ones I am looking for are 930 103 989 07 which are the 10.3:1 euro 231hp versions.

Thanks Steve!

Steve@Rennsport · 02-24-2015, 10:41 AM

Quote:

Originally Posted by dpetteng

So after a bit more research I found that 930 103 990 01 is the US 217hp version (even though they are advertised as the euro versions).

the ones I am looking for are 930 103 989 07 which are the 10.3:1 euro 231hp versions.

Thanks Steve!

Contact me directly since I have more questions.