Improve your Cummins' transmission performance with the RevMax 68RFE Transmission Cooler Thermostatic Bypass Upgrade. Expertly machined from billet 6061 aluminum and designed as a direct bolt-in replacement, this upgrade eliminates the factory thermal bypass valve—restoring full cooler flow and keeping your transmission running smarter and cooler.

Key Features & Benefits

-ZeroStat Technology – Replaces the factory orifice and allows unrestricted cooler flow, reducing transmission temperatures from startup.
- 87% Improved Flow – Eliminates a restrictive bottleneck for vastly better cooling efficiency.
- Extended Component Life – Without a cold bypass valve, your transmission avoids heat buildup that can lead to long-term failure.
- Simplified Maintenance – Flush cooler lines using room-temperature fluid—no heat machine needed.
- Integral Cooling Fins – Provides passive heat dissipation directly from the module.
- Direct Bolt-In Install – No cutting, no modification—just remove the factory part and install.

Why Choose It?

- Dramatically improves reliability and temperature management for your 6.7L Cummins.
- Maintenance-friendly design allows easier line flushing and avoids thermal valve failures.
- Enjoy peace of mind with a DIY-friendly, performance-focused upgrade that’s built to last.

What’s in the Box?

- 1 × RevMax Billet Cooler Bypass Module
- Installation Hardware (O-rings & Clips)
- Installation Instructions

FAQs

1. What’s the purpose of this upgrade?
Enhances cooler flow by removing the factory thermal bypass valve, leading to lower transmission temps and better reliability.

2. Is installation difficult?
No—it’s a direct bolt-in replacement with no modifications required.

3. Will this help with overheating?
Yes. It starts cooling immediately at startup, instead of delaying due to the closed bypass valve.

4. How much more cooler flow?
Approximately 87% greater flow, drastically reducing transmission heat.

5. Can I flush the cooler lines more easily now?
Absolutely. Flushing with normal-temperature fluid works—no hot machine needed.

6. Does it aid maintenance?
Yes. Removable module, better flush access, and no valve to fail improves serviceability.

7. Does it include cooling fins?
Yes—integrated aluminum fins help passively dissipate heat.

8. Which vehicles is it for?
Dodge Ram 2500/3500 with 6.7L Cummins and 68RFE or AS69RC transmission, model years 2013–2018.

9. Will it void my warranty?
It's a mechanical upgrade—always check with your provider, but typically it shouldn’t void warranty unless documented.

10. Why choose RevMax?
Their billet, performance-forward components are made in America and designed to outlast factory parts.

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