RevMax 68RFE Cooler Bypass Upgrade for 2013–2018 Cummins

Imagine hitting the road, towing heavy loads or cruising through scorching traffic, and never worrying about your transmission overheating. That’s the peace of mind the RevMax 68RFE Cooler Bypass Upgrade brings to your 2013–2018 6.7L Cummins truck. Crafted from billet 6061 aluminum and engineered as a direct bolt-in replacement, this module eliminates the restrictive factory thermal bypass and restores full cooler flow, keeping your transmission cooler—and your mind at ease. 

Let’s dive into why this upgrade is essential, what makes it stand out, and how it benefits real Cummins drivers like you.

Why Your Transmission Needs This Upgrade (And Why Fast)

Don't Let the Factory Valve Slow You Down: The original 68RFE thermal bypass valve restricts cooler flow by about 87%, bottlenecking your system and letting heat build up quickly—especially under heavy loads or towing.

Say Goodbye to Valve Failure: These valves can fail in the closed position, leaving your transmission dangerously overheated and risking catastrophic damage.

Immediate Cooling at Startup: Instead of waiting for the valve to open, RevMax’s design starts cooling instantly—even from a cold start.

Easier Maintenance—No Specialty Required: Flushing lines used to demand a hot-machine just to open the bypass valve. With this upgrade, you can flush with room-temperature fluid—no extra tools required.

Built-in Cooling Fins: Aluminum cooling fins dissipate heat passively from the module itself, giving your transmission a constant edge against overheating.

What's Under the Hood: Features That Drive Results

ZeroStat Flow Technology: This patented design (US Patent #11,137,070) eliminates the factory orifice restriction for unrestricted cooler flow—a complete overhaul in thermal management.

Complete Elimination of the Bypass Valve: No valves to fail, no blockages—just constant, efficient flow.

87% Increase in Cooler Efficiency: That’s significant—think smoother heat dissipation and enhanced transmission longevity.

DIY-Friendly, No-Fuss Installation: Bolt-in design means no line cutting or permanent changes—just remove the old and install the new.

Built to Last: Crafted from durable billet aluminum, a far cry from flimsy stock parts.

What’s in the Box

- RevMax Billet Cooler Bypass Module
- Installation hardware (O-rings & clips)
- Clear, straightforward instructions

Summary: Why It’s Worth Every Penny

If your 68RFE has been running hot, this upgrade is more than just a part—you’re investing in reliability and a cooler drive every time you hit the road.