View Full Version : TR2/3/3A TR3A Steering Control Head Harness

01-01-2018, 08:00 PM
Anyone here ever build a replacement control head harness? Tips? If so how easy was it to do, what wire sizes did you use, and did wrap it and if so with what?


01-01-2018, 08:28 PM
I just bought one instead, they're readily available from the usual suspects.

One problem I see is that the tiny ring terminals that go inside the control head are "specials", they have a locating tab that sticks into a hole in the Bakelite to keep the terminal from turning and perhaps shorting out.

01-01-2018, 09:01 PM
I've searched two of the suppliers and haven't found the item. Did you have to ask for it specifically?

01-01-2018, 09:19 PM
British Wiring in Bally, PA has the harness:


01-01-2018, 09:28 PM
So, it looks like no one has attempted a build?

01-01-2018, 09:38 PM
I've searched two of the suppliers and haven't found the item. Did you have to ask for it specifically?
No, I just ordered it the way I always do: Look up the factory part number in the factory parts book, then order that number from TRF. Web site says it's still available: 51849
Moss shows in stock, too.

If you don't have a factory parts manual, I suggest you get one. TRF will sell you a paper copy, or you can download a PDF from
https://drive.google.com/open?id=0B2H2NJt34OffMWQ4N2EzZGQtNjc0Ny00YmE2LWFiN 2UtZWYzMjNjNGFiYzY4

(I just added some bookmarks, circles and arrows ... to be used as evidence against us.)

01-02-2018, 07:52 AM
I recall that the new harness that came with my new head had an orderly twist in the wires to facilitate twisting the harness down the tube.

01-02-2018, 10:08 AM
Yeah, the wire size is critical, as is the thickness of the wrapping. This is just one of those parts I wouldn't personally consider doing myself unless it wasn't available otherwise. Moss shows it for $38...which is higher than it used to be. I found mine on ebay for $22 and it's cloth wrapped. I could not build for that price.