Combine Two Breather Lines Into One- When You Need More Than Three Ports
Sometimes you need to connect more than three systems to your breather. This precision wye fitting lets you combine two breather lines into one, giving you that extra connection when the Tri-Port's three ports aren't enough.
 
What It Does
Combines two 3/8" OD tube inputs into one 3/8" OD output
Clean, leak-free connections with push-to-connect design
Compact size fits in tight spaces
Durable construction for underhood conditions
 
When to Use It
Connecting four or more systems to your Tri-Port breather
Combining transmission and transfer case lines (same fluid type only!!)
Creating custom breather configurations
Upgrading existing single-port setups
 
Critical Safety Note Only combine lines with the same fluid type. Never mix different fluids like gear oil and ATF, even though cross-contamination is rare. Mount the wye as close to the breather as possible to minimize the risk of fluid mixing during extreme conditions like rollovers.
 
Installation Push your existing tubes into the two input sides, then run a single tube from the output to your breather port. The push-to-connect design makes connections secure and removable for service.

Quality Construction Built to handle the temperature and vibration of underhood environments. The fitting maintains a secure seal while allowing for thermal expansion and normal vehicle movement.

Works With
Our Tri-Port Differential Breather Kit
Any breather system using 3/8" OD tubing
Standard Nylon 11 or similar breather tubing