【Vehicle Fitment 2】: thermostat housing assembly fits for Infiniti FX35 2004 , G35 2003 2004 2005 2006 2007, M35 2006 2007 2008. Part Number: 21200-31U1B, 2120031U1B. Please verify fitment, OE number, and product images before ordering
【Precision Temperature Control】: HHCSOP's Engine coolant thermostat housing assembly precision-calibrated thermostat opens at 82°C / 179.6 °F, In Bypass Mode (cold start), coolant stays inside faster warm-up for less wear. In Full Flow Mode (hot engine), coolant flows to the radiator — prevents overheating.
【Durable Construction】: Upgraded precision-machined engine aluminum thermostat housing — heat-resistant, corrosion-resistant, stronger than plastic, and designed for efficient heat dissipation.Leak-proof sealing surface keeps coolant where it belongs. Built to last. Prevents engine damage and costly repairs.
【Complete Kit】: Aluminum engine coolant thermostat housing assembly includes the 1x thermostat Housing, 1x pre-installed thermostat,1x rubber gasket. No extra trips to the parts store.
【1-Year Warranty】: Backed by our quality promise. If you have any issues with our aluminum thermostat housing assembly fitment or performance, contact us via Amazon — we'll make it right. Professional installation recommended.