MGB & GT Forum

78 mgb wiring harness

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casinogoer stephen smith
Kittery, Maine, USA   USA
Since 1978, everyone on the east coast has had a turn at messing up my wiring. New fuses, twisted wiring, and many bad splices. Just bought it a week ago, and knew about the wiring. Where can I get a complete loom from bumper to bumper?

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Andrys Posthuma Avatar
Delft, Z-H, Netherlands   NLD
1935 MG N-Type Magnette
1969 Jaguar E-Type 2+2 "The E"
1976 MG MGB GT "The B"
"The usuals" will have one, I would expect. I have good experience with I am sure there are other (US-based) companies., victoria british, etc. Why not google on MGB wiring harness?

Limey Avatar
Limey Eric Marshall
Pentwater, Michigan, USA   USA
I have used a harness from Moss which worked fine - but if you want really good service, call British Wiring - and tell Josh that Eric told you to call. They will set you straight. A few more $$$ than Moss, but definitely worth it!

Eric Marshall

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BobG Avatar
BobG Bob Gohn
North Andover, MA, USA   USA
1969 MG MGB
1977 MG MGB
Stephen -
Welcome from a fellow New Englander. Ditto on British Wiring as supplier. I redid the entire harness on my '77 last year from them. It's a bit of work, but well worth it.

U.M.-Casey Avatar
U.M.-Casey Casey Delnick
Lowell, Michigan, USA   USA
1969 MG MGB GT ~ For Sale ! ~
X2 on British wiring. I have found them a much better fit and much better quality than the Moss looms.

Take your top off Avatar
Take your top off Colin Wheeler
Hebron Connecticut, USA   USA
1969 MG MGC GT "The C"
1970 Jaguar E-Type 2+2
1973 MG MGB "Bumble"
1974 Jensen Healey "Jasper"    & more
I got new harnesses for the Iris Roadster from MGOC in the UK, and saved a bundle. They will ask you for the VIN which I liked. Note though that some manufacturers have changed most of the bulb types, and therefore bulb holders, on new harnesses. Wedge base bulbs are more common now.

U.M.-Casey Avatar
U.M.-Casey Casey Delnick
Lowell, Michigan, USA   USA
1969 MG MGB GT ~ For Sale ! ~
Moss is notorious for changing the bulb sockets. What we used to do before we started getting our harnesses from British wiring was cut the sockets from the old harness and solder them to the new one. Kind of a pain, but at least they were correct.

Be Coming Avatar
Be Coming Kelvin Dodd
So. Calif., USA   USA
Just an FYI. Moss and British Wiring are both distributors for Autosparks of the UK. They both sell identical wiring harnesses.

Any issues, such as the royal PITA dash lamp sockets are shared.

That said. The folks at British Wiring/Triumph Rescue are really nice and are knowledgable.


PNodtvedt Avatar
PNodtvedt Paul Nodtvedt
Mount Pleasant, SC, USA   USA
Interestingly enough, Autosparks sells direct as well as through Moss, British Wiring and probably others. For some reason (favorable exchange rates?) you can land one here in the U.S for around $100 less than from the domestic suppliers - even our local Moss distributors who discount the Moss prices (this includes the across the pond shipping charge)! Doesn't make sense to me.

Simon Austin Avatar
I've used Autosparks on two cars I've done and have a couple of friends who've used them as well. Great to deal with. They go above and beyond to make sure you, the customer, are totally happy with the final result. They'll build you a stock harness or modify it to your needs.

I asked them about the modern spade-type dash bulbs on the harnesses and they told me they use these because the manufacturer of the original "screw-in" type bulb sockets wasn't around anymore. These modern bulbs will still fit all your OEM gauges.

They're a lot brighter as well. Here's a photo of the V8's dash at night.

"Speed fast you want to spend?"

White gauges at night.jpg    15.7 KB
White gauges at night.jpg

casinogoer stephen smith
Kittery, Maine, USA   USA
Thank you all very much, now to work some overtime!! Gotta get to ordering..

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