Sinister Diesel 7.3L Powerstroke Thermostat Housing For 1999.5-2003 - Billet Aluminum Ford Powerstroke 7.3L Thermostat Housing With Leak-Proof Seal A DIRECT FIT: Precision made to provide a perfect fit for your 1999.5-2003 Ford Powerstroke 7.3L to add a new touch to your old 1999-2003 Ford Powerstroke and prevents any leaks for an engine that lasts longer and performs better. DURABLE & LONG LASTING: Unlike OEM and Cheap Thermostat Housing for your Ford Powerstroke 7.3L engine we go the extra mile to provide you a 7.3L Powerstroke Thermostat Housing that only use high-quality Billet Aluminum that has been CNC Precision Machined to offer the perfect fit, unmatched durability and effectiveness for long lasting use. RUST FREE & LEAK PROOF SEAL: Unlike lower-quality stamped steel most manufacturers use for their Thermostat Housing that is prone to leaks we only use high-quality Billet Aluminum with a leak proof seal to ensure that youre Thermostat keeps operating without any leaks for longer without you having to worry about it rusting anytime soon. EVERYTHING YOULL NEED: Like every other Sinister Diesel Product, our 7.3L Powerstroke Thermostat Housing For 1999.5-2003 comes with all the necessary bolts youll need to replace your cheap OEM Thermostat Housing quickly and easily. A RISK-FREE INVESTMENT: We stand by the quality, durability, and performance of our 1999.5-2003 Powerstroke Thermostat Housing for a 7.3L diesel engine which is why we offer a Sinister lifetime warranty so that you can be confident that youre buying the best Thermostat Housing on the market!