Mishimoto Thermostat for Chrysler 300 5.7L & 6.1L NAG1, Dodge Challenger 5.7L

Mishimoto Thermostat for Chrysler 300 5.7L & 6.1L NAG1, Dodge Challenger 5.7L Direct-fit high-performance thermostat engineered by Mishimoto to optimize cooling for Chrysler and Dodge HEMI engines. Precision-machined and thoroughly tested to deliver reliable temperature control, faster warm-up, and improved engine efficiency under daily driving and spirited use. Key Benefits Accurate temperature regulation for stable engine operating temps and reduced thermal stress. Durable construction with corrosion-resistant components for long service life. Enhanced coolant flow to help prevent hot spots during high-load driving. Direct OEM fit for an easy, bolt-in replacement—no modification required. Fitment & Compatibility Designed for multiple Chrysler and Dodge applications including Chrysler 300 (5.7L & 6.1L NAG1), Dodge Challenger (5.7L), Charger, Durango, Ram and more. See the full application guide to confirm fitment for your model and year. Why Choose Mishimoto Mishimoto is a leader in thermal management. This thermostat is manufactured to strict tolerances, bench-tested for durability, and backed by Mishimoto's reputation for performance cooling products. Install tip: Replace coolant and inspect hoses when installing the thermostat to ensure optimal system performance.