Engineered specifically for 2011 through 2016 Ford F-250, F-350, F-450, and F-550 Super Duty trucks equipped with the 6.7L Powerstroke turbo diesel engine, the Maryland Performance Diesel (MPD / Maryland Performance Products) Upper Coolant Hose Upgrade Kit (MPD-67-PSD-1116-COOLHOSE) permanently eliminates the failure-prone factory rubber upper hose assembly.

Under demanding towing conditions and aggressive duty cycles, the stock flexible rubber hose expands under internal pressure surges, while the factory molded plastic quick-connect adapter and thermostat housing become brittle over time. These plastic failure points are notorious for developing hairline stress fractures and weeping coolant onto the front accessory drive. MPD completely re-engineers this critical primary cooling connection by utilizing a rigid, seamless 2" CNC mandrel-bent 304 stainless steel pipe. Paired with in-house 5-axis CNC-machined 6061 billet aluminum couplers, heavy-duty 5-ply silicone boots, and 304 stainless lined clamps, this kit ensures permanent durability and elevates under-hood styling.

Key Features & Benefits

• Mandrel-Bent 2" 304 Stainless Steel Hard Pipe: Rigid stainless construction resists wall ballooning, heat fatigue, and pressure blowouts without seams or weak welds.
• 5-Axis CNC Billet 6061 Aluminum Couplers: Precision-machined thermostat neck adapter and radiator quick-connect collar replace brittle OEM plastic components.
• Factory Retaining Clip Integration: Radiator quick coupler retains the factory three-sided wire locking clip and includes a fresh high-temp sealing O-ring for a leak-free fit.
• Heavy-Duty 5-Ply Silicone Couplers: Multi-ply reinforced silicone boots isolate engine vibration and chassis movement while handling extreme coolant temperatures.
• Cleans Up Engine Bay Aesthetics: Delivers a clean, performance-oriented look that complements aftermarket intercooler piping, cold air intakes, and turbo kits.
• Direct Bolt-On Replacement: CAD-engineered using factory Ford geometry for a seamless installation using factory thermostat hardware and mounting points.

Technical Specifications

• Manufacturer / Brand: Maryland Performance Diesel (MPD / MPP)
• Manufacturer Part Number: MPD-67-PSD-1116-COOLHOSE
• Store SKU Format: mpdMPD-67-PSD-1116-COOLHOSE / MPD-67-PSD-1116-COOLHOSE
• Hard Pipe Material: 2-Inch Mandrel-Bent 304 Stainless Steel Tubing (Raw Finish)
• Coupler Adapters: In-House CNC-Machined 6061-T6 Billet Aluminum (Thermostat Neck & Radiator Quick Coupler)
• Boot Construction: Heavy-Duty 5-Ply Reinforced Silicone with 304 Stainless Clamps
• Cooling Circuit Supplied: Primary High-Temperature Engine Loop (Thermostat Housing to Radiator Inlet)
• Truck Platform: 2011–2016 Ford Super Duty F-250, F-350, F-450, F-550
• Engine Platform: 6.7L Powerstroke V8 Turbo Diesel
• Core Requirement: None
• Warranty: MPD Lifetime Manufacturer Warranty against defects in craftsmanship

Vehicle Fitment & Installation Notes

• 2011–2016 Ford F-250 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2011–2016 Ford F-350 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2011–2016 Ford F-450 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2011–2016 Ford F-550 Super Duty – 6.7L Powerstroke Turbo Diesel
• Fits Model Years: 2011, 2012, 2013, 2014, 2015, 2016
• Fitment Notice: Engineered specifically for 2011–2016 6.7L Powerstroke trucks. For 2017–2019 applications, order MPD SKU MPD-67-PSD-1719-COOLHOSE.
• Installation Tip: Thoroughly clean the radiator inlet socket and apply a light coat of fresh engine coolant to the supplied O-ring before pressing the billet coupler into place. Ensure the factory wire spring clip snaps completely into the billet retaining groove before tightening the silicone boot clamps.