jeffbyrne Posted September 1, 2008 Share Posted September 1, 2008 (edited) Hey Guys, I have been looking for a Mack to buy and later put a dump bed on but. What the heck do all the numbers and letters mean? DM, R600, RS686LS, RS, R686ST, and it seems like ther are a lot more mumbers out there too! Maybe there is a book out there that explains it! Any help would be greatly appreciated by this rookie!Regards, Joel hi wacko, in Australia we've always had a limited range of Macks available, but i'm sure the # are all the same. The 1st letter is the model followed by mayb another to denote a variation of that model. Then the 1st# is the capacity of the truck, i.e. 600 is usually lighter duty in some way than a 700 or an 800. The 2nd 2 # are the engine. In the 70's a 711 would be an R609 or 709or F609,709 etc, a 673Cwould be an R611, a 237 an R685 a truck with an END864T would always be at least a 700, F719 or R719. If there is a 4th # it is often a 4 or a 6, this is 4x4 or 6x6. The next letters are, in Aust an R is for RHD, you probably wouldnt see this much in the US. Next is an S ,T,ST,X,SX. T is a single drive, ST is Tractor, usually a light weight rear like a 34,000lb, S is like 44,000lb an SX or an RSX is usually 55 or 65,000lb rears. In Australia we have A8-FR712RST, A8 is Australian twin steer tandem drive. I think you'll find exceptions to every rule. Hope this explains a bit more. Jeffro. Edited September 1, 2008 by jeffbyrne Quote Link to comment Share on other sites More sharing options...
HarleyD Posted March 19, 2020 Share Posted March 19, 2020 Model number cross reference https://www.macktrucks.com/parts-and-services/support/body-builders/news-and-events/new-mack-model-description-cross-reference-chart/ Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.