Freightrain Posted 10 hours ago Share Posted 10 hours ago Ok, I need some assistance getting the proper part number for the exhaust clamp on my 300. It is 4 7/16" diameter flange. Mack turbo 631GC5134P4X. Dealership are pretty worthless so I haven't even tried there. I googled V band clamps but couldn't come up with a chart of sizes. Of course the input side is a different size so I can't go off of that. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/76570-turbo-exhaust-clamp/ Share on other sites More sharing options...
Geoff Weeks Posted 8 hours ago Share Posted 8 hours ago (edited) Sounds like you need a 4.5" Marmon clamp. Have you tried Grand Rock or other exh supplier? Edit Marman is the correct spelling. Edited 8 hours ago by Geoff Weeks spelling Quote Link to comment https://www.bigmacktrucks.com/topic/76570-turbo-exhaust-clamp/#findComment-594514 Share on other sites More sharing options...
Freightrain Posted 4 hours ago Author Share Posted 4 hours ago I've seen both Marmon and Marman listed. More then one person has a spelling for it. I found a 4.5" clamp but from the runaround I went through on the 237 exhaust clamp 10 yrs ago, there are different widths of taper?? Not universal one size fits all. Or is it?? I went through this with Tip turbine clamp. Found manufacturer but they don't make clamps anymore. The clamp on the intake side of turbo has R.G. Ray on it. Lots of variations. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/76570-turbo-exhaust-clamp/#findComment-594520 Share on other sites More sharing options...
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