2013-2018 Cummins Billet Dual Radiator Coolant Y-Pipe (I67-ENG-A001)

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.

• 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.

• (1) Dirty Billet Machined 6061 Aluminum Y-Pipe