mercruiser thunderbolt 4 for 5.0lx?

[newtoboat101]

what do they call or part number for the large plug from thunderbolt to starter /altenator ,i know wiring harness, but i am not able to find on any parts listing or manual when i look up thunderbolt 4 wiring it does not show the harness with big plug that goes from thunderbolt large plug to starter /alternator thanx

 

[Bondo]

for the large plug from thunderbolt to starter /altenator

Ayuh,..... Not followin' what yer sayin',......

The ignition to wirin' harness plug,..??
That depends on which generation of T-Bolt IV ya got,......

The T-Bolt ignition isn't plugged into the starter, nor the alternator,.....

Post a picture if ya can't explain it better,.......
Odds are whatever yer lookin' for is a part of the wirin' harness, 'n not available by itself,...... hence no part #,......