What Wiring Harness Fits The 2013 Toyota Sienna?
Updated 11/03/2025 | Published 01/01/2025 >
Question:
Hi all! 118498 seems to be listed on your webpage as fitting the non-SEinch models of the Toyota Sienna see pic, but the QandA says that it doesnt fit. Which is right?
asked by: Jason C
Expert Reply:
Hello Jason, thanks for reaching out. The Tekonsha # 118498 will fit all models of the 2013 Toyota Sienna. It was only after 2015 that Toyota added different plugs for the SE models. I can see how the way we have it listed is a bit confusing. Basically it says the # 118498 wiring harness will fit both the SE and non-SE models. I used to have a 2013 Sienna XLE (great van by the way) and it used the same wiring harness as the base SE and base models. I also triple checked with the manufacturer and they confirm the # 118498 is for all models of the 2013 Sienna. Sorry for any confusion and feel free to comment below if you have any questions or need anything else.
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Wiring
- Video: Mount: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2013 Toyota Sienna
- Video: Let’s Check Out the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector-118498
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Troubleshooting T-One Tee Connectors Not Fitting a 2016 Toyota Sienna
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Q&A: Comparing Pacbrake to Firestone and Air Lift Air Bags
- Q&A: Recommended Best Trailer Hitch Receiver for Ground Clearance on 2018 Toyota Sienna
- Q&A: Which Trailer Wiring Harness for 2015 Toyota Sienna XLE
- Q&A: Can Redarc Tow Pro Liberty Brake Controller Install 2012 Toyota Sienna LE
- Article: Rooftop Cargo Carriers
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: Comparison of Available Class III Hitches for 2020 Toyota Sienna
- Article: My Trailer Hitch Doesn't Fit
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)


Jesse M.
11/3/2025
Hey Jason, did the Tekonsha wiring harness end up working well with your 2013 Sienna? Knowing how it fit could really help others sorting through the same SE and non-SE confusion.