TH400 Modulator & Speedometer Block-Off Plug Kit (Aluminum)

Alright, so you're building a serious TH400 and need to clean things up?

This is the kit you're looking for.

We’ve got a sweet aluminum block-off plug that deletes both the modulator and speedometer hole on your TH400 transmission.

It's made right here in the USA from solid aluminum, so it’s lightweight but tough as nails.

Comes with a 5-year warranty, so you know it's legit.

Whether you're going for a race setup or just a cleaner look, this plug is a direct fit and gets the job done.

Grab the WCM kit and button up that transmission the right way.