SKU: SD-RADTUBE-CUMN Sinister Diesel Radiator Pipe for 2010-2018 Dodge/RAM Cummins 6.7L

Sinister Diesel Radiator Pipe – 2010–2018 Ram 2500 / 3500 Cummins

⚠️ High Demand – Restock in Progress
This item is moving fast and currently out of stock—we’re working to get more on the shelf.
Estimated ship date: 6/29/26
Orders ship first-come, first-served, and we’ll get yours out as quickly as possible.
Expedited shipping applies after shipment and does not move your order ahead in line.
We truly appreciate your patience and support—it means a lot to us.

Fitment Note
Fits 2010–2018 Ram 2500 / 3500 Cummins
Does NOT work with dual radiator setups. Please verify your truck does not have the factory dual radiator Y-pipe before ordering.

Key Features
• Upgraded Radiator Pipe – Replaces failure-prone factory coolant tubing
• 6061 Aluminum Construction – Strong, crack-resistant, and built for long-term durability
• Mandrel-Bent Tubing – Precision-formed for proper fitment and smooth coolant flow
• 4-Ply Silicone Boots – High-strength boots rated to 400 PSI for durability under pressure and heat
• Stainless Steel Hose Clamps – Maintains a secure, leak-free seal
• Sinister Blue Powder Coat – Corrosion-resistant finish with a clean, aggressive appearance
• Direct Bolt-On Installation – No cutting or modifications required
• 2-Year Warranty – Backed for quality and reliability

Product Overview
The Sinister Diesel Radiator Pipe for the 2010–2018 Ram Cummins is designed to replace the weak factory coolant tube with a stronger, more reliable solution built for the demands of a turbo diesel engine.

Factory coolant tubing is known to become brittle and fail over time, especially in high-heat environments and tuned applications. This upgraded radiator pipe replaces those weak points with durable 6061 aluminum tubing and high-strength silicone boots designed to handle long-term heat and pressure without cracking or deterioration.

Precision mandrel bends ensure a proper fit while maintaining smooth coolant flow throughout the system. Combined with stainless steel clamps and 4-ply silicone boots, this setup delivers a secure, dependable seal built for daily driving, towing, and performance applications.

Finished in Sinister Blue powder coat, this pipe not only improves durability but adds a clean, finished appearance under the hood.

Installation is straightforward with a direct-fit design requiring no cutting or modifications.

What’s Included
(1) Aluminum Radiator Pipe
(2) 4-Ply Silicone Boots
(4) Stainless Steel Hose Clamps

Why Choose Sinister Diesel
Since 2009, Sinister Diesel has been focused on building parts that solve factory weak points and improve real-world reliability. Our cooling system upgrades are engineered for stronger construction, long-term durability, and dependable performance when your truck needs it most.