Jamaican Bulldog Posted June 10, 2020 Share Posted June 10, 2020 I learnt on here that the Superliner had external air cleaners as an option. The Australian models mostly seem to have it I am assuming to have higher air in takes in dusty areas. What influenced the different preferences in the U.S models? Did certain specs such as engine type influence which one was chosen? Quote Link to comment Share on other sites More sharing options...
kscarbel2 Posted June 10, 2020 Share Posted June 10, 2020 As always, it all had to do with requirement. In the US with the standard 6-cylinder engine, the 11-inch Donaldson underhood unit was adequate. And it could fit. The optional cowl mounted air cleaners, available single or dual, in 13 or 15 inch diameter canisters, were necessary for extended service intervals, larger engines and/or harsher conditions. An inline pre-cleaner was also an option (not available with the inside-outside air intake option). 1 Quote Link to comment Share on other sites More sharing options...
Brian L Blaylock Posted June 11, 2020 Share Posted June 11, 2020 I think it is more of a personal preference I have driven one with a six cylinder that had two external breathers and the one that I currently own has the internal breather with an E9 1 Quote Link to comment Share on other sites More sharing options...
autocardc Posted June 11, 2020 Share Posted June 11, 2020 1989 rw713 1 Quote Link to comment Share on other sites More sharing options...
Back In Black Pulling Posted June 11, 2020 Share Posted June 11, 2020 More wind noise cruising with the window open with externals 1 Quote Link to comment Share on other sites More sharing options...
superliner500 Posted June 13, 2020 Share Posted June 13, 2020 They look cool but. 1 Quote Link to comment Share on other sites More sharing options...
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