Yoos Brothers Construction Posted January 18, 2011 Share Posted January 18, 2011 Name: Mack B421 (1959)Date Added: 12 June 2010 - 12:20 PMOwner: Yoos Brothers ConstructionShort Description: It was originally the second of three consecutive B421s ordered by Denton Construction. It was built with an EN401 Mack flathead engine but was replaced with an EN414 Mack [Chysler 413 industrial] V8 engine in 1971.View Vehicle Quote Link to comment https://www.bigmacktrucks.com/topic/17614-vehicle-mack-b421-1959/ Share on other sites More sharing options...
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