






⚙️ Upgrade your 4WD breather game — breathe easy, drive harder!
This Differential Axle Breather Replacement kit features robust 8mm polyethylene tubing that ensures high flow, zero back pressure venting for drivetrain assemblies including differentials, transmissions, and transfer cases. Engineered for durability against oil, water, and heat, it offers a straightforward installation and compatibility with a wide range of 4×4 4WD vehicles, delivering premium performance at a smart price.




| ASIN | B07V3C77HY |
| Best Sellers Rank | #314,327 in Automotive ( See Top 100 in Automotive ) #99 in Automotive Replacement Differential Assembly Kits |
| Brand | GREATUS |
| Customer Reviews | 4.4 4.4 out of 5 stars (344) |
| Date First Available | July 9, 2019 |
| Item Weight | 1.04 pounds |
| Item model number | 170112 |
| Manufacturer | GreatUs |
| Manufacturer Part Number | 170112 |
| OEM Part Number | 170112 |
| Product Dimensions | 10.8 x 10.2 x 2 inches |
T**N
Every bit as good as the name brand.
I suspect this is in fact the ARB device just without the logo since the parts are identical right down to the packaging. having said that, this is a fantastically put together system. The tubing is a bit stiff and a little difficult to work with as it has a mind of its own but overall, very good product, does exactly what it says it will and as far as installs go, pretty straightforward. self tapping screws could be a teensy bit longer. only a few threads are able to go into the panel.
K**R
Money saver
2019 tacoma. Some people didn't use the included nylon tubing but I had no issues. It took a little effort to get it on the differential nipple but it should be tight anyway so no water intrusion. I installed my breather behind the left taillight so I didn't have to worry about exhaust and heat damaging the line. Solid quality product looks exactly the same as the higher priced name brand product. Same some money, buy this. Worth
J**.
Nice quality
Update. It’s installed and worked great. Installed breaker at a high point in the engine bay.....Have not installed yet , packaged in nice box. No instructions but it’s self explanatory! Once installed I’ll rate better or worse who know. But overall looks to be good quality.
I**M
Works well. Mounted aft of battery in 5th Gen 4Runner.
Hose is stiff, but avoids the possible $1-2k repair of differential or axle leak. Bolts can mount to factory threaded holes. Shark bite fittings are snug, but you can silicone the hose if you want to be overly cautious.
H**0
Works great. Easy to install
Works great! Keeps my ARB front diff in my Toyota Tacoma safe and water-free
K**R
Bad hose almost makes it not worth buying
The hose is so bad it's probably not really worth buying this. As others have mentioned the hose is so hard it is nearly impossible to route it, and it cracks if bent very much. I had to spend another $15 to get some different hose. Also the cover on the breather falls off easily. I ended up safety wiring it on so I wouldn't lose it.
J**S
Good customer support
Kit fit well in my 4Runner and works fine, tubing was plenty flexible for me. I didn't get around to installing the breather until 7 months after I bought the kit, and then I noticed one of the holes in the aluminum manifold wasn't threaded well. I contacted the seller, and they sent a whole new kit, no problem. That's pretty good customer service.
J**H
Great product, easy installation
Easy to install, quality and just like the kits that cost more than double.
Trustpilot
1 month ago
1 month ago