Amazon.com: Laisomeke 4 Pin electrical Connector Waterproof Connector,Male and Female Way 16 AWG Wire Suitable for car Truck, Boat and Other Wire Connection (5 pack) Black : Automotive
1 Kit 4 Pin Way Electrical Wire Connector Plug Set auto connectors with cable/total length 21CM - AliExpress
1 Kit 4 Pin Way Electrical Wire Connector Plug Set auto connectors with cable/total length 21CM - In1mall
4 Terminal Electrical Wiring Harness Electrical Connector for Vintage Honda Motorcycles| Common Motor Collective
Hopkins Towing Solutions 4-Wire Flat Extension at Tractor Supply Co.
Automotive Pigtails / Sockets
4 Wire quick connector
4C LED Strip RGB Wire to Tape Connector – Armacost Lighting
Dorman Conduct-Tite 1 Terminal Pigtail Connector 91443 | O'Reilly Auto
LED Strip light connector - 4 conductor with female SM connectors, black/green/red/blue