m16ty Posted April 16, 2018 Share Posted April 16, 2018 Does anybody have the Mack part number for the dash solenoid on a 1985 RD822SX? I’m pretty sure all R models are the same. I just picked one up from my local Mack dealer and it looks nothing like the one that came off the truck. I just want to make sure the parts guy sold me a continuous duty solenoid and not a starter solenoid. The new part number he gave me is 8609-98226wr. Quote Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/ Share on other sites More sharing options...
kscarbel2 Posted April 16, 2018 Share Posted April 16, 2018 Does it look like this 2MR350 accessory relay? https://articulo.mercadolibre.com.ve/MLV-494922013-switch-msw-1242-2mr350-mack-_JM Quote Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-396840 Share on other sites More sharing options...
m16ty Posted April 18, 2018 Author Share Posted April 18, 2018 On 4/16/2018 at 3:45 PM, kscarbel2 said: Does it look like this 2MR350 accessory relay? https://articulo.mercadolibre.com.ve/MLV-494922013-switch-msw-1242-2mr350-mack-_JM No, the one they gave me has the poles around the radius. I’m just concerned that they gave me a starter solenoid, of which most can only handle intermittent use. I usually deal with Watts, but need this ASAP, and didn’t want to wait on shipping. Our local Mack Dealer (McMahon) are idiots. Quote Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-397013 Share on other sites More sharing options...
kscarbel2 Posted April 18, 2018 Share Posted April 18, 2018 I meant, what does the original look like? Quote Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-397015 Share on other sites More sharing options...
turckster Posted April 19, 2018 Share Posted April 19, 2018 The new relays look nothing like the old relays in the R models. Don't know part numbers--not my thing. Quote Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-397103 Share on other sites More sharing options...
Rob Posted April 19, 2018 Share Posted April 19, 2018 Grainger has the original style which was manufactured by White-Rogers. PAI also has the original style. PAI #MSW-1245 for four pole continuous duty. MSW-1246 for three pole. These are the original R model styles mouting under the panel on the top of the dash. Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-397106 Share on other sites More sharing options...
m16ty Posted April 19, 2018 Author Share Posted April 19, 2018 On 4/18/2018 at 7:02 AM, kscarbel2 said: I meant, what does the original look like? Yes, the original does look like that. It was a White Rogers. The one from Mack has nothing on it except a sticker that says 12v. Quote Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-397142 Share on other sites More sharing options...
kscarbel2 Posted April 19, 2018 Share Posted April 19, 2018 Typically the starter relay is a 2MR338 with 1 small post, and the accessory relay is a similar looking unit (2MR350) albeit with 2 small posts. But then your V8-equipped RD8 has a 24-volt starting system. I’d want an experience Mack parts person to double check it. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-397145 Share on other sites More sharing options...
85snowdog Posted July 13, 2021 Share Posted July 13, 2021 I just replaced the dash solenoid in one of my Macks . I told the parts man I wanted a 2MR2114 solenoid. He gave me a Mack/Volvo part # of 8609-98226WR, the same part # as the very first post. The part however looks nothing like the original. I just wanted to share this and some pics for the next person that thinks they may have the wrong part ( like me ) . Good news is it goes on no problem, and works like it should . This is the original This is the new one Quote Keith Link to comment https://www.bigmacktrucks.com/topic/53124-rd822sx-dash-relay-solenoid/#findComment-476738 Share on other sites More sharing options...
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