What is the Best Wiring Harness for a 2018 Toyota Corolla iM?

Updated 01/15/2025 | Published 11/04/2023

Products Featured in This Question

1-7/8" Hitch Ball - 3/4" Diameter x 1-9/16" Long Shank - Chrome - 2,000 lbs

(2626)

$15.24

2" Hitch Ball - 3/4" Diameter x 1-9/16" Long Shank - Chrome - 3,500 lbs

(2626)

$17.53

Draw-Tite Sportframe Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4"

(40)

$166.86

Draw-Tite Drawbar for 1-1/4" Hitch - 2-1/8" Rise, 2-3/4" Drop - 6-5/8" Long - 2K

(2331)

$32.85

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(28)

$61.13

Question:

Im looking for a plug and play trailer wiring kit. No splicing in factory wires. Which option is best. 2018 Corolla IM. Thanks in advance for you help

asked by: Ken M

Expert Reply:

The best plug and play wiring harness for a 2018 Toyota Corolla iM is the Curt item # C56309. Curt makes some of the best and most reliable wiring harnesses in the towing business. Multiple manufactures use them as suppliers of their OEM towing harnesses.

The Curt item # C56309 has a custom-fit T-connector that plugs into your Corolla's wiring harness, which is located behind the tail lights. It will provide you with a 4-flat connector that will power your trailer or accessories lighting functions.

Listed below are some other parts you will need to tow a trailer with your 2018 Toyota Corolla iM:

Trailer Hitch - Draw-Tite item # 24952

Ball Mount - Draw-Tite Drawbar item # 3593

Hitch Balls - 2' item # 19258 or 1-7/8" item # 19256

expert reply by: Jerred H

Dave

1/15/2025

I keep losing ground all the time what is the deal? Ive used better screws, different locations and they work fine then a month or so goes by no ground what can i do differently?