When adding a tach to my 17 RK I ordered 2 male and 2 female connectors plus 10 pins and sockets, plus couple other connectors. Ended up costing about $100. Pins and sockets were like 2-3 buck each.

Well got tired of it and I spent some time looking for the connectors used. I think I found them but still need to verify..

You can get 25 pins for 2.86 from here..

https://www.digikey.com/product-deta...7-1-ND/1840013

One connector. Digikey shows links to the other side.

https://www.digikey.com/product-deta...675-ND/1839986

If you want to make your own extensions these should work. I've not verified yet but will have some on order soon.

 

Those should be the ones ...JAE MX1900,

Just replaced my front turn signals and got mine off ebay, but you will have more and cheaper options still over that side of the pond

 

Got the order. They are the correct connectors.

 

----------------------
PART: 670-1677-1-ND

MFG : JAE Electronics (VA) / MX19P10K451

DESC: CONN PIN 20-22AWG CRIMP TIN 0.09800 4.90
------------------------------------------------------------------------
PART: 670-1675-ND

MFG : JAE Electronics / MX19004P51

DESC: CONN PIN HOUSING 4POS MX19 0.89300 8.93

COO : JAPAN ECCN:
-------------------------------------------------------------------------
PART: 670-1676-ND

MFG : JAE Electronics / MX19004S51

DESC: CONN SOCKET HOUSING 4POS MX19 1.32300 13.23

COO : JAPAN
-----------------------------------------------
PART: 670-1678-1-ND

MFG : JAE Electronics (VA) / MX19S10K451

DESC: CONN SOCKET 20-22AWG CRIMP TIN 0.09480 4.74

COO : JAPAN ECCN:


Both Digikey's and JAE part numbers.