thomastractorsvc Posted January 28, 2016 Share Posted January 28, 2016 Any one have the part # for the Blue Knob on dash that takes the roll pin?It does not take the 3/8" knob it is 1/4" with roll pin Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/ Share on other sites More sharing options...
j hancock Posted January 28, 2016 Share Posted January 28, 2016 #291172 Blue Tractor Parking Pull to Apply / Push to Release Knob shaft size .26 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-321962 Share on other sites More sharing options...
thomastractorsvc Posted January 28, 2016 Author Share Posted January 28, 2016 Thanks! Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322006 Share on other sites More sharing options...
Vladislav Posted January 28, 2016 Share Posted January 28, 2016 What's about one to fit 3/8 shaft?Has a roll pin either. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322045 Share on other sites More sharing options...
j hancock Posted January 28, 2016 Share Posted January 28, 2016 That is a 290997 knob. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322064 Share on other sites More sharing options...
Vladislav Posted January 29, 2016 Share Posted January 29, 2016 Thanks a lot Jim.Will try to find one, had no luck in the past. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322134 Share on other sites More sharing options...
m16ty Posted January 30, 2016 Share Posted January 30, 2016 Just ordered one from Napa. Thought it was the right one but when I got it it was for the 3/8 shaft. Simple fix was I found that a piece of 3/8 plastic air line worked great for a bushing. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322239 Share on other sites More sharing options...
thomastractorsvc Posted January 30, 2016 Author Share Posted January 30, 2016 The Mack dealer has the 1/4 blue knob for $12.88 next day as they did not stock it. There was one on ebay for $10 =$7.50 for shipping, if you bought all three knobs from the guy be worth it (combined shipping) but not for just one.New Mack # 25152255 that crossed from the one Jim posted. 1 Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322240 Share on other sites More sharing options...
Vladislav Posted January 31, 2016 Share Posted January 31, 2016 If anybody put part ## of all three knobs (and of the both 1/4 and 3/8 styles) on here it would be too appreciated.I'd like to have all 3 knobs new in the cab since some of them are broken and some have the scripts gone. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322453 Share on other sites More sharing options...
thomastractorsvc Posted January 31, 2016 Author Share Posted January 31, 2016 Vlad, My truck has two 3/8" and one 1/4", theses were the part numbers I needed but I got local around $12-$18 a piece. I saw them on line but figured i wanted them sooner, but probably would have saved some money as he does combined shipping.The Yellow Knob is MACK # 25MY32P19 PAI # LVK-3603 3/8" with roll pinhttp://www.ebay.com/itm/Push-Pull-Valve-Parking-Brake-Knob-Qty-1-PAI-LVK-3603-Ref-Bendix-248502-101471-/251873247998?hash=item3aa4d0c2fe:g:a3AAAOSwcu5UPXnE&vxp=mtrThe Red Knob is MACK # 745-248600 PAI # LVK-1373 3/8" with roll pin http://www.ebay.com/itm/Push-Pull-Valve-Red-Trailer-Emergency-Knob-PAI-P-N-LVK-1373-Ref-Bendix-248600-/261862497092?hash=item3cf8389b44:g:CmUAAOSwPhdVOBRw&vxp=mtrThe Blue Knob is MACK # 25152255 PAI # LVK-3604 1/4" with roll pinhttp://www.ebay.com/itm/Pull-To-Apply-Tractor-Parking-Push-To-Release-Knob-LVK-3604-Ref-Bendix-291172-/252094148714?hash=item3ab1fb706a:g:R~4AAOSwiLdV-fRf&vxp=mtr Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322459 Share on other sites More sharing options...
Vladislav Posted January 31, 2016 Share Posted January 31, 2016 Thanks a lot.I rifled through ebay but haven't found any blue ones.It looks though like my truck differs a bit from yours.All my 3 knobs seat on 3/8 shafts and at least the red and the blue have the shoulder along the edge like the blue one you found.(The yellow's are gone on the both R's I have). My R-models are of 1988 so it may be related to that.I found a couple of yellow from Midland wich look right but can't count out the shaft size.They're KN20901 http://www.ebay.com/itm/Haldex-Midland-KN20901-Yellow-Diamond-Parking-Brake-Knob-for-Push-Pull-Valves-/171772641070?hash=item27fe727f2e:g:KAkAAOSwPgxVQVFC&vxp=mtrand KN20903 http://www.ebay.com/itm/Midland-Parking-Brake-Pull-Knob-Part-KN20903-/141883504579?hash=item2108ea77c3:g:tjwAAOSwf-VWaI0A&vxp=mtr Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322467 Share on other sites More sharing options...
thomastractorsvc Posted January 31, 2016 Author Share Posted January 31, 2016 Haldex Midland site say they are both 3/8" roll pin, so you should be good.http://www.haldex.com/en/North-America/Applications-Products/Brake--Suspension-Systems/Product-Catalog/Valves/Hand-Control-Valves/Haldex-NewRemanufactured/Push-Pull-Parking-Brake--/Replacement-Knob/KN20903http://www.haldex.com/en/North-America/Applications-Products/Brake--Suspension-Systems/Product-Catalog/Valves/Hand-Control-Valves/Haldex-NewRemanufactured/Manifold-Dash-Style-A/TractorTrailer-Knob/KN20901Here is the Red one with 3/8" roll pin http://www.ebay.com/itm/Haldex-Midland-KN20900-Red-Octagon-Trailer-Air-Supply-Knob-for-Push-Pull-Valves-/181730931258?hash=item2a5001f23a:g:E2kAAOSwv0tVQVFB&vxp=mtrhttp://www.haldex.com/en/North-America/Applications-Products/Brake--Suspension-Systems/Product-Catalog/Valves/Hand-Control-Valves/Haldex-NewRemanufactured/Manifold-Dash-Style-A/TractorTrailer-Knob/KN20900Here is the Blue one 3/8" roll pin http://www.ebay.com/itm/KN20902-MIDLAND-BLUE-TRACTOR-PARKING-KNOB-FREE-SHIPPING-/141883909535?hash=item2108f0a59f:g:bVcAAOSwL7VWocuShttp://www.haldex.com/en/North-America/Applications-Products/Brake--Suspension-Systems/Product-Catalog/Valves/Hand-Control-Valves/Haldex-NewRemanufactured/Push-Pull-Tractor-Parking--/Replacement-Knob/KN20902 Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322469 Share on other sites More sharing options...
Vladislav Posted January 31, 2016 Share Posted January 31, 2016 Wow! Now the deal looks 50% done.I will probably go a hoggish way and order two sets.Surprized seeing so many ebay options.Have spent more than an hour there but haven't seen a half of what you posted.Thanks again. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322474 Share on other sites More sharing options...
j hancock Posted January 31, 2016 Share Posted January 31, 2016 Part numbers circa 1985.http://www.bendixvrc.com/itemDisplay.asp?documentID=2764 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322480 Share on other sites More sharing options...
Vladislav Posted January 31, 2016 Share Posted January 31, 2016 This link doesn't want to work by some reason. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322482 Share on other sites More sharing options...
j hancock Posted January 31, 2016 Share Posted January 31, 2016 This link doesn't want to work by some reason.OK try this one.http://www.plazafleetparts.com/uploads/2/1/9/0/2190100/haldex_knobs.pdfI will try to get the other to post because it has better info.Loaded into the wiki. See if you can get it to open through there. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322484 Share on other sites More sharing options...
Vladislav Posted January 31, 2016 Share Posted January 31, 2016 Thanks Jim, this does work fine. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/43750-push-pull-knobs-on-dash-one-is-broken/#findComment-322490 Share on other sites More sharing options...
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