Vehicle Fitment - This vehicle-side dual-output T-connector RV wiring harness provides both a 7-way RV-style and a 4-pole flat connector for select 2007 - 2013 Toyota Tundra with Factory Tow Package Stable Connection - This trailer replacement harness is designed to plug into existing vehicle wiring by pluging in OEM plug to output the taillights, left turn brake, right turn brake, ground, bakc up, electric trailer brake and aux power Durable Construction - This trailer light connector comes a dust cap for 4 way flat to keep the plug socket clean when not in use. Weathertight spring-loaded cover on 7 way blade keeps out water and debris. The pigtail wiring guage is from 14-18ga, and is well-protected with the included split loom Simple Installation - Equiped with OEM plugs for quickly and easily assembly, put your carrofix T-connector wiring kit to plug directly into OEM factory tow package wiring harness, no cutting, splicing or tapping required, up to 34 inches pigtails