Author Topic: Heater blower motor wire rubber groument in firewall  (Read 157 times)

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Offline Badgas6228

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Heater blower motor wire rubber groument in firewall
« on: September 12, 2019, 04:34:19 pm »
Hello All,looking to I D the rubber groument in firewall that the blower motor  electricial wire passes through,been looking at the Osborn manuals,i bought the 44 piece rubber plug kit from pony ent its not in the kit. Just cant seem to find it,any help muchly app.Greg.    Seattle

Offline CaBossFan

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Re: Heater blower motor wire rubber groument in firewall
« Reply #1 on: September 12, 2019, 05:40:11 pm »
Here is a photo of the heater motor grommet on my BOSS 302 that was built at the Dearborn Plant on Feb. 26, 1970:



I measured the grommet and it was 3/4 inch.  I'd probably just buy a grommet at the hardware store as I'm sure you can find something that will fit and it was also be a lot less expensive! - Mark
« Last Edit: September 13, 2019, 08:24:10 am by CaBossFan »

Offline Badgas6228

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Re: Heater blower motor wire rubber groument in firewall
« Reply #2 on: September 13, 2019, 09:43:46 am »
Sure seems there would be production groument for that location,The old one i took out of that hole had a number on it but could not read it. My Boss is 10-21-69 N J   build.Thanks.
 Greg

Offline jhw505

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Re: Heater blower motor wire rubber groument in firewall
« Reply #3 on: September 13, 2019, 05:47:24 pm »
On my friends '70 Dearborn the hole was closer to 5/8", if you can't find any locally we got some from eBay,  search for  "Rubber Flush Plugs Grommets Without Hole Solid Grommet 5/8" Inch  Diameter". We just drilled a 1/8" hole in the center,  came out nice. 
1970 Boss 302, October 10th Metuchen
1969 Mustang GT R code March 26th Metuchen