If you're running a Cummins with a 5R110W, this is the foundation of a proper build.

Destroked has been doing this longer than most — and it shows. The parts fit, the parts work, and there’s no drama getting it together.

Cummins to 5R110 Adapter Kit — The Foundation of a Proper Fummins Swap

This Cummins to Ford 5R110 adapter kit allows you to correctly mate your Cummins engine to a 5R110 automatic transmission. Designed for 12 valve, 24 valve, and common rail engines, this kit ensures proper alignment, fitment, and long-term reliability in your swap.

⚠️ If your engine and transmission aren’t aligned correctly — nothing else in your build will work right.

This adapter kit eliminates the guesswork and fabrication issues that come with pieced-together setups, giving you a clean, proven solution that works.

What This Kit Does:

✔ Mates Cummins engine to Ford 5R110 transmission

✔ Ensures proper engine-to-transmission alignment

✔ Maintains correct starter and flexplate positioning

✔ Provides a strong, reliable mounting interface

Why This Matters:

Improper adapter setups can lead to:

- Transmission failure due to misalignment

- Starter engagement issues

- Flexplate damage or premature wear

- Vibration and driveline stress

This kit is designed to prevent those problems from the start.

Fitment:

• Cummins 12 Valve, 24 Valve, and Common Rail engines

• Ford 5R110 automatic transmission

• Common Fummins swap applications

Install Notes:

• Designed for engine swap applications — mechanical experience required

• Must be used with proper flexplate and supporting components

• Transmission control strategy (tuning or standalone) required for full operation

Why Buy From Fummins Tuning:

✔ Real-world Fummins swap experience

✔ Proven parts that fit and function correctly

✔ Support from people who actually build these trucks

Included is a CNC-machined billet adapter plate, the correct 5R110W hybrid flexplate, and all required hardware. Everything you need, nothing you don’t.

The 5R110W is one of the best transmission options for a Fummins — but only if it’s set up right. This kit ensures proper input depth and engagement, eliminating the issues that take out pumps, converters, and transmissions in poorly planned swaps.

Built for real trucks — towing, power, and daily abuse — not just something that looks good in a parking lot.

Compatible with Cummins 12V (5.9L) and Common Rail (5.9L / 6.7L) engines. Uses a Ford 6.0/6.4/6.7 Powerstroke-style starter and works with factory-style 5R110W torque converters.

👉 “Pair with engine mounts + transmission tuning for a complete Fummins drivetrain setup."

⚠️ Caution: this kit won’t make your truck prettier — but it will make it work exactly the way it should.