Will The Curt T-Connector Vehicle Wiring Harness C56300 Fit A 2024 Mazda MX-5 Miata?

Updated 01/03/2026 | Published 09/14/2025

Question:

WILL THIS WIRING FIT A 2024 MAZDA MX5??

asked by: DOC C

Expert Reply:

What's up Doc! (sorry, I couldn't help it)

The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56300 will fit a 2016 to 2025 Mazda MX-5 Miata, so you are good to go!

What are you going to be using this for?

expert reply by: Lazer S

Lazer S.

9/29/2025

Hey, did you get the Curt wiring harness installed on your Mazda? I'd love to hear how it worked out for your project!

Doc C.

9/29/2025

@LazerSNO I HAVE NOT FOUND A HARNESS THAT WILL FIT A 2024 MAZDA MX5.. THEY CHANGED THE HARNESS FOR A 2020 AND A 2022 MX5..

Lazer S.

10/1/2025

@DocC Curt lists the # C56300 I mentioned as fitting all versions for a 2024 Mazda MX-5 Miata. What do you mean they changed the harness for the 2020 and 2022 models? I went through a bunch of replacement taillight pictures for 16 to 25 MX-5s and they all use the same rectangular plug/port that this wiring harness tees into.

Anonymous

1/3/2026

@LazerS 2024+ Miatas (ND3) now use an 8 pin connector. ND2s use the 6 pin connector that comes with Curt. The change apparently has something to do with additional wires on account of the reverse lights being relocated.