Looks like my dash A/C compressor has started slinging oil so I'm on the hunt for a replacement. Looking at a few threads on here, they call out a Seltec TM-16HD compressor for my 2003 U320.
I found this thread Source for dash air compressor? (https://www.foreforums.com/index.php?topic=24177) where Jim said he has a Seltec TM-16HD model 488-46018 in his 2003 U320.
I found this thread Question about replacing dash a/c expansion valve (https://www.foreforums.com/index.php?topic=47349) where T and M Long said they also have a TM-16HD in their 2004 U270.
Looking online, I found AutoAir Online that does have these compressors, but I see both TM-16HD's and TM-16HS's. The number on my compressor now is 435-56018, which comes back to a TM-16HS with matching number 56018: Genuine Seltec TM-16HS Compressor - Auto Air Online (https://www.autoaironline.com/ac-parts/seltec-tm-16hs-compressor-338) I can see that this compressor uses the 3/4" discharge and 7/8" suction threads, like mine appears to have. Also, mine has the bolted on rear fittings, like this one.
I found this compressor in the HD line that has the same line sizes, but the fittings are integrated and it's only got a 1 rib pulley. Genuine Seltec TM-16HD Compressor - Auto Air Online (https://www.autoaironline.com/ac-parts/seltec-tm-16hd-compressor-315)
Then I also found this compressor in the HD line that has the same line sizes, bolt on fittings of the same size, 2 rib pulley and a different clutch style. Genuine Seltec TM-16HD Compressor - Auto Air Online (https://www.autoaironline.com/ac-parts/seltec-tm-16hd-compressor-337)
Does anyone know the differences between the HD and HS compressors?
HD: filled with ZXL100PG oil and Valeo green label
XD: without oil and with Valeo green label
HS: filled with ZXL100PG oil and Seltec orange label
XS: without oil and with Seltec orange label
Just for reference here's a Seltec Guide