Engineered specifically for 2017 through 2019 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-1719-COOLHOSE) permanently replaces the bulky and failure-prone factory rubber upper radiator hose assembly.

Under heavy towing conditions and extreme under-hood thermal cycles, the factory rubber hose softens and expands under pressure surges. Even worse, the OEM molded plastic quick-connect radiator adapter and thermostat neck fittings become brittle over time, developing hairline fatigue cracks that cause sudden coolant blowouts. The MPD kit solves this by swapping the flexible factory rubber for a rigid, mandrel-bent 2" 304 stainless steel hard tube connected via in-house CNC-machined 6061 billet aluminum fittings, heavy-duty 5-ply silicone couplers, and stainless steel lined hose clamps.

Key Features & Benefits

• Mandrel-Bent 2" 304 Stainless Steel Pipe: Rigid stainless construction prevents wall ballooning, heat softening, and burst failures under aggressive driving and high coolant temperatures.
• CNC Billet 6061 Aluminum Couplers: Precision in-house machined thermostat neck and radiator quick-connect adapters eliminate brittle OEM plastic failure points.
• Includes Fresh O-Ring Seal: Ships with a high-temperature sealing O-ring for a leak-free connection into the factory radiator quick-connect socket.
• 5-Ply Reinforced Silicone Boots: Heavy-duty silicone couplers absorb engine movement and vibration while providing maximum blowout resistance.
• Dramatically Cleans Up the Engine Bay: Replaces the factory rubber hose with a sleek, performance-oriented hard line that complements aftermarket intercooler piping.
• Direct Bolt-On Replacement: CAD-engineered using factory files to install directly into existing radiator and engine locations without cutting or permanent modifications.

Technical Specifications

• Manufacturer / Brand: Maryland Performance Diesel (MPD / MPP)
• Manufacturer Part Number: MPD-67-PSD-1719-COOLHOSE
• Store SKU Format: mpdMPD-67-PSD-1719-COOLHOSE / MPD-67-PSD-1719-COOLHOSE
• Pipe Construction: 2-Inch Mandrel-Bent 304 Stainless Steel Tubing
• Coupler Adapters: CNC-Machined 6061-T6 Billet Aluminum (Thermostat Neck & Radiator Quick Coupler)
• Boot Construction: Heavy-Duty 5-Ply Silicone Couplers with 304 Stainless Clamps
• Truck Platform: 2017–2019 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

• 2017–2019 Ford F-250 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2017–2019 Ford F-350 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2017–2019 Ford F-450 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2017–2019 Ford F-550 Super Duty – 6.7L Powerstroke Turbo Diesel
• Fits Model Years: 2017, 2018, 2019
• Fitment Notice: Engineered specifically for 2017–2019 single-radiator platforms. Note: For 2011–2016 models, order MPD SKU MPD-67-PSD-1116-COOLHOSE. For 2020+ dual-radiator Super Duty trucks equipped with a middle tee in the upper hose, select the dedicated dual-radiator version.
• Installation Tip: Lubricate the new radiator quick-connect O-ring with fresh engine coolant prior to sliding it into the radiator neck. Ensure the spring wire retaining clip engages completely into the billet adapter collar with a distinct click before torquing the silicone boot T-bolt clamps.