6.7L Cummins Aluminum Coolant Y-Pipe | 2013-2019 RAM

Avoid unexpected coolant failures on your dual-radiator 6.7L Cummins by replacing the factory plastic Y-pipe with this billet aluminum unit. The OEM piece is a well-documented weak spot — it hardens with age, can crack under system pressure, and may cause sudden coolant loss and overheating.

This precision-machined aluminum Y-pipe is designed as a long-term solution, offering stronger construction, improved internal flow and added durability exactly where your cooling system needs it most.

Vehicle Compatibility

Years: 2013, 2014, 2015, 2016, 2017, 2018, 2019
Makes: RAM
Models: 2500, 3500, 4500, 5500
Engine: 6.7L Cummins (diesel)
Body: Pickup, Cab & Chassis, and Heavy Duty
Configuration: Dual radiator setup only

Key Features

• Billet Aluminum Construction: Swaps out the weak factory plastic Y-pipe for a robust aluminum piece that resists cracking, deforming and fatigue under heat and system pressure.
• Optimized Coolant Path: Designed with a refined internal passage to promote consistent coolant flow and support steady operating temperatures.
• Heavy-Duty T-Bolt Clamps: Upgrades the stock single-use clamps to durable, reusable T-bolt clamps that deliver a tight, reliable and leak-resistant seal.
• Direct-Fit Replacement: Built to match the OEM layout so it drops into place without cutting, trimming or additional modifications.

Stop Coolant Issues Before They Happen

That OEM Y-pipe looks harmless right up until it fails. Once it splits, coolant can escape in seconds, putting your engine at risk of overheating and serious damage.

The Aluminum Coolant Y-Pipe removes this weak link entirely, delivering a durable, worry-free solution whether you're towing heavy, commuting every day or pushing a tuned Cummins hard.