4-Way Round to 7-Way Blade and 7-Way Round to 7-Way Round Adapter Availability

Published 11/13/2023

Products Featured in This Question

RoadMaster 4-Wire Connector - Trailer End

(33)

$7.29

12 Gauge 7 Conductor Jacketed Wire - Per Foot

(518)

$10.69

14 Gauge, 4 Conductor Jacketed Wire - Per Foot

(138)

$2.97

Pollak Heavy-Duty, 7-Pole, Round Pin, Trailer Wiring Connector - Trailer End

(124)

$20.75

Pollak Heavy-Duty, 7-Pole, Round Pin Trailer Wiring Socket - Vehicle End

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$12.65

Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End

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$14.16

Question:

I am a mobile mechanic and I need a 4 way round male to 7 way spade female that will test brakes as well as lights. I cant find one anywhere. I also need a 7 way round female to a 7 way round male. If you can make the first a cable at 6ft and the second just an adapter it would be perfect.

asked by: Edward D

Expert Reply:

Those adapter configurations aren't high enough in demand to be available but you can definitely make them. For a 4-way round male you'd need part # RM-910030-2 and for a 7-way female part # PK12703. For jacketed 4-way wiring sold by the foot you'd then want the part # DW04923-1.

Then for a 7-way male round you'd want the part # PK11700 and for female part # PK11720 and then for wiring part # DW04914-1 which is also sold by foot.