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Old 01-29-2015, 08:51 PM
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semcoinc semcoinc is offline
Join Date: Dec 2014
Location: Dallas, TX
Posts: 840
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Originally Posted by spongerich View Post
I've been searching for an OEM wiring harness and I've been striking out completely.

In digging about, the only real 'trick' part appears to be the TCM which is widely available. Beyond that, it looks like it wouldn't be all that hard to fab up a suitable connector to plug into the wiring.

Anyone know what the pinouts are on the factory connector?

The part I'm thinking about building is this one:

I too was searching high and low to find this wiring harness to match up to an aftermarket hitch off ebay for ~$110!

Presto, I just found it, (I think), It is Westfalia PN 303169351001 or KWES061 01 or 303169300117

Westfalia 303169351001 KWES061 01 303169300117 Trailer Wiring Harness Kit New | eBay

Been looking nearly a year to find this and all the junkyards I've called didn't have one.

Good Luck Folks.


Dallas, TX & Appleton, WI
2003 E53 4.4i Pearl Beige
2003 E46 330Xi Monaco Blue
2007 E90 335Xi Black Sapphire Metallic
2011 F25 X3 28i Black Sapphire Metallic

Last edited by semcoinc; 01-29-2015 at 08:57 PM.
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