chilge01 Posted July 24, 2019 Share Posted July 24, 2019 I've got an '84 Mack MH613. A couple days ago the brake valve under the foot pedal broke off where the three bolts hold the assembly to the floor of the cab. I've checked around a few places and so far i've been told that nobody can get the part and it's discontinued. I've attached a diagram below. The piece that's broke is on the top left, with the three bolt holes. It's the casting piece that contains the plunger. That piece bolts between the actual air valve and the cab floor. Does anybody know of a place where I could order this? Or possibly a junk yard/used truck that has one? Or, if it's impossible to find, is there a way to swap out the entire brake pedal assembly to something more common? Thanks! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58281-mack-mh613-brake-pedal-valve/ Share on other sites More sharing options...
MHfred Posted July 25, 2019 Share Posted July 25, 2019 Your best bet is to find a junked MH and get what you need. I could have probably gotten that for you up until a couple of years ago but the cab I had found has been scrapped. Good luck. Where are you? Quote Link to comment https://www.bigmacktrucks.com/topic/58281-mack-mh613-brake-pedal-valve/#findComment-428710 Share on other sites More sharing options...
chilge01 Posted July 26, 2019 Author Share Posted July 26, 2019 Southern Minnesota Quote Link to comment https://www.bigmacktrucks.com/topic/58281-mack-mh613-brake-pedal-valve/#findComment-428768 Share on other sites More sharing options...
KKERGALL Posted November 1, 2019 Share Posted November 1, 2019 what is part number to the "Right" on sheet by the green box?? valve and spacer two different part numbers. Rich Quote Link to comment https://www.bigmacktrucks.com/topic/58281-mack-mh613-brake-pedal-valve/#findComment-434963 Share on other sites More sharing options...
Vladislav Posted November 1, 2019 Share Posted November 1, 2019 The brake valve iself is a common type threadle valve. The part you need is a kind of spicer. Same general design as say R-model but longer to suit MH cab. The plunger which is actually a tappet is longer also. If no options to purchase a good part I would try alu welding and than grind the edges into the shape and drill 3 holes. Vlad 1 Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/58281-mack-mh613-brake-pedal-valve/#findComment-434983 Share on other sites More sharing options...
KKERGALL Posted November 8, 2019 Share Posted November 8, 2019 P/N# 8MY293M BOOT P/N# 29QE45AM ADAPTER P/N# 17MY205M PLUNGER Quote Link to comment https://www.bigmacktrucks.com/topic/58281-mack-mh613-brake-pedal-valve/#findComment-435436 Share on other sites More sharing options...
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