The T-Man Transmission Top Cover has multiple applications and is a great way to help your M8 motor breathe more efficiently. Primarily, we route the Transmission Top Cover to the cylinder heads as an external breather drain. Here at T-Man, we drill all of our M8 cylinder heads for External Breathers, which we typically run down to the oil pan. The Trans Top Cover is an easier way to accomplish this without having to drill and tap your oil pan for a seamless and cleaner installation.

Another option we offer is to run our External Breather Spacer Kit from behind the No Loss Air Cleaner to the Trans Top Cover. This setup enables your cylinder heads to breathe through the breather bolts to the Trans Top Cover rather than into your air cleaner. This approach prevents oil from getting into the air cleaner, helping to maintain a clearer lens and will extend the lifespan of your filter between cleanings.

This Transmission Top Cover will help your motor breathe more efficiently, but it does create a near vacuum seal and excess cranking pressure, which needs to be relieved. Therefore, with either application, you MUST vent your motor with a vent kit of some kind when running this cover. We offer an Oil Pan Vent Kit and a Vented Dipstick to accomplish this. Be sure to take a look at those when considering our Transmission Top Cover.

Lastly, this kit CAN be used as a vent for your motor. This cover can vent the oil pan to either the atmosphere with a filter or to our T-Man Oil Mist Catch Can. If you own a Softail, this kit is also compatible with our T-Man Softail Catch Can. Please look at the options carefully when ordering to be sure you select the correct application you are looking for and feel free to give us a call with any questions you may have.

For M8 only.