The factory plastic Y-pipe on 2013–2018 dual radiator Cummins trucks is a notorious weak point, known to crack and leave drivers stranded. We designed this upgraded billet Y-pipe in-house to provide a permanent solution that will far outlast the rig itself.
Machined from solid 6061 billet aluminum, this Y-pipe features a knife-edge transition and polished internals for superior flow characteristics compared to the OEM unit. It’s not just a durability upgrade, it’s an engineering improvement that eliminates the risk of catastrophic plastic failure while cleaning up your cooling system’s appearance.
Part Number: I67-ENG-A001
Why Shop Dirty?
Canadian-Made Performance: High-performing parts made in-house in our shop in West Kelowna and sourced from across North America with the highest quality standards
Born in the Shop: Our parts are engineered with real-world experience. Whether it's an OEM fix or a performance upgrade, we build what we know works. We make our parts to solve real-world problems.
Dirty Made Quality: We aren’t just designing the kits; we are installing them every day in our own shop. We use our own products every day. From the first weld to the last bolt, we build tough gear that actually fits, handles abuse, and looks the part.
Features
Permanent replacement for the fragile factory plastic coolant Y-pipe.
Knife-edge internal Y-transition reduces turbulence and optimizes coolant flow.
Polished internal transitions ensure maximum efficiency through the dual radiator circuit.
Embossed "DIRTY" logo on both sides for a clean, professional shop-built look.
Includes
(1) Dirty Billet Machined 6061 Aluminum Y-Pipe
Specifications
Material
6061 Billet Aluminum
Internal Finish
Polished / Knife-Edge Transition
Origin
Canada
Warranty
We overengineer everything we make. It's manufactured to last and tested to prove it, and if by some strange anomaly it ever lets you down, we'll fix it, have a word with whoever built it, and come back stronger. That's the Dirty Lifetime Warranty. Click here for all the details.
Questions and Answers
Don't see your question? Ask us anything about this product.
Does this come with t-bolt clamps or worm gear clamps?
Worm Gear.
?
Is this for the inlet side or outlet side? Or does this work for both.
This product is for the upper coolant hose, which would be the inlet side of the radiators!
Vehicle Fitment
- Part No: I67-ENG-A001
For trucks with dual radiators.
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Customer Reviews
Overall rating: 4.9 / 5 from 17 reviews.
The stock plastic one developed a pin hole. This was the obvious route to go. Fit as it should.
Removed the 3 hoses and brought the piece into the garage to cut the factory hose clamps off & re-install.
If you choose to not capture & reuse your coolant, expect just over 1 jug lost
Easy install but I only received one large hose clamp and one small hose clamp. I needed two large hose clamps and one smaller clamps for the install and the smaller one they sent was too small to fit for the small hose connection. Easy fix but I had to run to the store to get the proper clamps
Changing out the old peice for this want to bad, it’s easier to pull the small line off and unhook the 2 bigger ones and change it outside the truck so when the brittle plastic one breaks you don’t have to fish the broken plastic out of the lines. Very solid peice, really nice for peace of mind that there won’t be having to change out broken plastic ones anymore!
Nice solid hunk of aluminum. A must have for these truck as mine started to leak and could have left me stranded. Hardest part of the install is getting the old one out. Very functional and looks awesome.
Was pretty disappointed when I first got my package and opened it to see a totally different part not even remotely close to what I ordered. But after a phone call it was made right and sent back and the correct one came immediately and was super happy with it. Easy install and looks and works awesome.