Firewall Plug Connectors - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**NewBayColony** · 12-15-2018, 11:05 AM

Is there a source for the Male (Engine Side) wire connectors within the main firewall plug? I have two that are deteriorating. Thanks!

davepl · 12-15-2018, 12:01 PM

I replaced mine with a junkyard block replacing each fuse terminal pin for pin, turned out nice because I found a like-new one. But I've not seen them sold separately, unfortunately.

I don't know for sure but I bet if you called M&H or similar where they MAKE the harnesses, they might be able to hook you up with the connector for one end.

**HO455** · 12-15-2018, 12:11 PM

They are available through NAPA (#725444 for 14AWG) and other sources. Known as Packard 56 or GM 56 connector pins. They come in different wire sizes. I have some information posted in my WMB thread (link below) from when I replaced one of the pins in my connector.

http://67-72chevytrucks.com/vboard/s...698377&page=16

**NewBayColony** · 12-15-2018, 01:38 PM

Thanks!!!

12-15-2018, 11:05 AM	#1
NewBayColony Senior Member Join Date: Mar 2017 Location: Northbridge,MA Posts: 494	Firewall Plug Connectors Is there a source for the Male (Engine Side) wire connectors within the main firewall plug? I have two that are deteriorating. Thanks! __________________ 72 C20 292 3OTT 77 GMC 2500 4x4 Longstepper 350 4sp 50 3100 ex Airforce/Town of Mendon fire truck 72 GMC 1500 2wd short stepside 250 4sp 78 GMC 2500 4x Longstepper 292 4sp 54 6400 Chevy 5 window 4 sp 2sp vac rear end Shell oil truck/dump truck (Norman)

12-15-2018, 12:01 PM	#2
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: Firewall Plug Connectors I replaced mine with a junkyard block replacing each fuse terminal pin for pin, turned out nice because I found a like-new one. But I've not seen them sold separately, unfortunately. I don't know for sure but I bet if you called M&H or similar where they MAKE the harnesses, they might be able to hook you up with the connector for one end. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

12-15-2018, 12:11 PM	#3
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 11,393	Re: Firewall Plug Connectors They are available through NAPA (#725444 for 14AWG) and other sources. Known as Packard 56 or GM 56 connector pins. They come in different wire sizes. I have some information posted in my WMB thread (link below) from when I replaced one of the pins in my connector. http://67-72chevytrucks.com/vboard/s...698377&page=16 Attached Images __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

12-15-2018, 01:38 PM	#4
NewBayColony Senior Member Join Date: Mar 2017 Location: Northbridge,MA Posts: 494	Re: Firewall Plug Connectors Thanks!!! __________________ 72 C20 292 3OTT 77 GMC 2500 4x4 Longstepper 350 4sp 50 3100 ex Airforce/Town of Mendon fire truck 72 GMC 1500 2wd short stepside 250 4sp 78 GMC 2500 4x Longstepper 292 4sp 54 6400 Chevy 5 window 4 sp 2sp vac rear end Shell oil truck/dump truck (Norman)



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