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Granatelli Dodge 5.7L/6.1L/6.2L Hellcat/6.4L 180 Deg Thermostat

GMS43080T
802735040111
Thermostats
20+ Units In Stock - Ships Next Business Day
$ 52.50 $ 49.88
$ 49.88

SKU: 43080T   |   UPC: 802735040111


Granatelli Motor Sports High Flow Thermostat – Dodge 5.7L / 6.1L / 6.4L HEMI

The Granatelli Motor Sports 43080T High Flow Thermostat is a performance cooling upgrade for Dodge, Chrysler, Jeep, and Ram vehicles equipped with 5.7L, 6.1L, and 6.4L HEMI engines. This precision-engineered thermostat opens at a lower temperature than stock, allowing increased coolant flow for reduced heat soak, faster warm-up, better throttle response, and improved overall engine efficiency. Ideal for performance builds, towing, track use, or hot climates, it provides superior cooling without sacrificing normal operating temperatures.

Key Features

  • Lower Opening Temperature – Opens earlier than OEM for quicker coolant circulation and reduced peak temperatures
  • High-Flow Design – Larger ports and improved valve allow up to 50% more coolant flow for superior heat dissipation
  • Precision Calibration – Manufactured to exact tolerances for consistent performance and reliable operation
  • Direct Replacement – Fits factory housing with no modifications required
  • Durable Construction – High-quality brass and stainless components resist corrosion and wea
Spec Detail
Part Number 43080T
Brand Granatelli Motor Sports
Type High Flow Thermostat
Compatibility Dodge, Chrysler, Jeep, and Ram with 5.7L, 6.1L, and 6.4L HEMI engines
Material Brass / Stainless Steel
Opening Temperature Lower than OEM (typically 160-170°F – verify application)
Flow Improvement Up to 50% increased coolant flow
Country of Origin United States
Warranty Limited Lifetime Warranty

Whats Included

  • 1 x Granatelli High Flow Thermostat

Product Notes

  • Application-specific – confirm exact opening temperature for your HEMI model
  • Ideal for performance builds, towing, or hot climates – reduces heat soak and improves cooling efficiency
  • Compatible with stock or aftermarket cooling systems

Installation Notes

  • Estimated time: 30–60 minutes, moderate difficulty
  • Drain coolant, replace stock thermostat, refill and bleed system thoroughly
  • Professional installation recommended

This Part Fits

Year Range Make Model Trim / Engine Notes
2011-2024 Chrysler 300 5.7L Hemi / 6.4L 392 High Flow Thermostat
2012-2024 Chrysler 300 6.4L 392 High Flow Thermostat
2005-2010 Chrysler 300C 5.7L Hemi / 6.1L SRT8 High Flow Thermostat
2009-2023 Dodge Challenger 5.7L Hemi / 6.1L SRT8 / 6.2L Hellcat / 6.4L 392 High Flow Thermostat
2005-2023 Dodge Charger 5.7L Hemi / 6.1L SRT8 / 6.2L Hellcat / 6.4L 392 High Flow Thermostat
2004-2025 Dodge Durango 5.7L Hemi / 6.2L Hellcat / 6.4L 392 High Flow Thermostat
2005-2008 Dodge Magnum 5.7L Hemi / 6.1L SRT8 High Flow Thermostat
2002-2010 Dodge Ram 5.7L Hemi High Flow Thermostat
2005-2025 Jeep Grand Cherokee 5.7L Hemi / 6.1L SRT8 / 6.2L Trackhawk / 6.4L SRT High Flow Thermostat
2021-2025 Jeep Wrangler 6.4L 392 High Flow Thermostat

Why Choose Granatelli High Flow Thermostats?

  • Precision engineering delivers lower operating temps and improved cooling efficiency
  • High-flow design supports performance mods, towing, or hot climates
  • Limited lifetime warranty ensures long-term reliability

Frequently Asked Questions

  • Q: What temperature does it open?
    A: Lower than stock (typically 160-170°F) – exact temp varies by application for optimal cooling.
  • Q: Will it cause over-cooling?
    A: No, calibrated for proper warm-up while improving high-load cooling.
  • Q: Is it compatible with supercharged Hemi?
    A: Yes, excellent for Hellcat/Redeye; reduces heat soak under boost.
  • Q: Does it require special tools?
    A: Basic hand tools drain coolant, replace thermostat, refill and bleed system.

Shipping & Handling

  • Method: UPS/FedEx Ground
  • Availability: In stock – ships same or next business day
  • Packaging: Official Granatelli retail box

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