Posted on: - 5/4/2026

A cold-weather capable, OEM-friendly solution for grid heater failure

If you’ve been researching 6.7 Cummins grid heater upgrades, you’ve probably seen options that promise better airflow or cold-start reliability — but most come with tradeoffs like fuel line modifications or reduced heater performance in winter.

The new Fleece Performance Intake and Grid Heater Upgrade is designed to fix the real-world pain points that other kits often overlook — especially for trucks that still need to start in freezing weather and retain full OEM functionality.

✅ Key Features of the Fleece Intake & Grid Heater Upgrade

  • Direct fit for all 2007.5–2024 6.7L Cummins trucks, including Cab & Chassis models
  • Retains all factory high-pressure fuel lines — no custom fittings or adapters required
  • Cold-weather tested to –30°C, ensuring reliable starting in extreme climates
  • Cast aluminum intake horn with optimized dual-plenum design
  • Heater-integrated design without deleting factory emissions or starting aids
  • MAP: $599.00
  • Part Number: FPE-CUMM-IHK-0724

This is the first 6.7L Cummins grid heater upgrade we’ve seen that combines cold-weather reliability, clean OEM integration, and upgraded airflow in one package.

🔍 Who This Kit Is For

  • 6.7L Cummins owners replacing a failed or risky OEM grid heater
  • Cold-weather drivers who can’t delete their heater
  • Anyone looking for a clean bolt-on install that doesn’t require modifying fuel lines
  • Work truck and fleet owners who need an emissions-compliant intake solution
  • Drivers who want a smart upgrade without a complicated install or tuning

💡 Why This Kit Matters

Many grid heater kits on the market focus on performance — but at the cost of cold-start capability or compatibility with stock fuel plumbing. Others require supporting mods like new intake pipes or re-routing the fuel rail. Fleece’s new system skips the compromise.

This kit is:

  • Daily-driver ready
  • Cold-weather proven
  • Mechanic-friendly
  • Emissions-conscious
  • And built for real-world reliability

If you’ve searched for “best grid heater upgrade for 6.7 Cummins”, “intake manifold with stock fuel lines”, or “cold start friendly grid heater replacement”, this is the product you’ve been hoping would exist.

🛠 Installation and Fitment

  • Uses existing factory fuel system components
  • Mounts in the stock location with no tuning required
  • Compatible with emissions-equipped or clean-performance builds
  • Designed by diesel specialists who understand what fails and what works

Whether you're running a stock ECM, mild tuning, or a heavily used tow rig, this intake upgrade offers confidence in both airflow and starting performance.

🚨 Available Now!

Get yours today: https://www.thoroughbreddiesel.com/fleece-intake-and-grid-heater-kit-07-24-dodge-ram-2500-5500-cummins-67l/

✅ Bottom Line

The Fleece Performance Intake and Grid Heater Upgrade delivers a level of thoughtfulness and practicality rarely seen in this space. For those who want OEM fitment, emissions-friendly operation, and cold-weather confidence, this may be the most complete grid heater upgrade ever released for the 6.7L Cummins.

Adam_Blog
By: Adam