Superior Diesel

Superior Diesel Superior Diesel in Edmond, OK specializes in light-duty diesel truck repair, performance upgrades, tuning, and reliability.

From injectors and turbos to full performance builds, we keep your Duramax, Cummins, or Powerstroke running stronger than ever. At Superior Diesel we specialize in diesel truck and SXS repairs and upgrades! From engine rebuilds to minor repairs. Performance upgrades and Accessories installs. Give us a call today for all your repair and performance needs.

09/23/2026

Transmission day at Superior Diesel. đź”§

This Dodge came to us after the transmission pump was accidentally damaged during a filter seal repair performed before it arrived at our shop. We’re replacing the damaged pump and getting everything back together correctly. While it’s here, the customer also brought us a Banks intake/grid heater upgrade kit to install.

The Ford F-350 came in with a failed 6R140 that had already been previously upgraded. We’re pulling it out and stepping things up with a Stage 2 built 6R140.

Whether it’s repairing what you have or upgrading to something built to handle more, we’ve got you covered.

📍 Edmond, OK
🔧 Cummins • Powerstroke • Duramax

09/22/2026

Pretty cool seeing how far Superior Diesel has come.

A huge thank you to our customers for trusting us and supporting our business, and to the Superior Diesel team for the hard work that keeps us moving forward every day.

The new office, waiting area, and parking lot are just another step forward.

We wouldn’t be here without all of you. Thank you. 👊🏻

08/31/2026

Front end work, engine swaps, and everything in between last week shop

🚨 6.7 POWERSTROKE OWNERS — WANT CP4 PROTECTION WITHOUT PAYING FOR A FULL DCR CONVERSION?For the guys wanting to keep the...
08/22/2026

🚨 6.7 POWERSTROKE OWNERS — WANT CP4 PROTECTION WITHOUT PAYING FOR A FULL DCR CONVERSION?

For the guys wanting to keep the factory CP4 but still protect themselves from a potentially expensive fuel-system failure, the SPE Disaster Prevention Kit is a great option.

Instead of replacing the CP4, this kit reroutes the fuel system so if the CP4 starts coming apart, debris is isolated instead of being sent through your injectors, rails and high-pressure fuel system.

It also gives you a way to actually monitor the health of your CP4. The return filter features a clear bowl so you can visually inspect for debris, along with a sensor that can alert you if a problem develops.

âś… Keeps the factory CP4
âś… Helps protect injectors, rails & high-pressure fuel system
âś… Clear bowl lets you monitor for CP4 debris
âś… Sensor provides warning of a potential CP4 problem
âś… Reusable return-side filter
✅ No cutting — clean, factory-style installation
âś… Reversible
âś… Much less expensive than a full DCR conversion

A DCR conversion is still the way to go if you want to eliminate the CP4 altogether, but if you’re not ready to spend that money, this gives you another level of protection and a way to keep an eye on the health of your CP4.

🔥 WE STOCK KITS FOR 2011–2026 6.7 POWERSTROKES RIGHT HERE AT THE SHOP — READY TO GO!

Pick one up and install it yourself, or have Superior Diesel install it for you.

📲 Message us for pricing or to schedule an install.

08/18/2026

A 'million-dollar' engine... held together by a five-cent piece of plastic.

08/05/2026

What causes these map sensor to get coated with soot?

07/25/2026

Who Ordered The Indoor Swimming Pool Inside The Shop?

🚨 FORD 6.7 POWERSTROKE OWNERS — DON’T WAIT FOR YOUR CP4 TO FAIL 🚨We’ve been seeing more CP4 failures come through the sh...
07/21/2026

🚨 FORD 6.7 POWERSTROKE OWNERS — DON’T WAIT FOR YOUR CP4 TO FAIL 🚨
We’ve been seeing more CP4 failures come through the shop lately, and the damage gets expensive fast.

When a CP4 fails, it can send metal through the entire fuel system—damaging the injectors, rails, lines, and tank. A preventive DCR conversion can save you from a $10,000+ fuel-system repair.

The DCR replaces the failure-prone CP4 with a more reliable high-pressure fuel pump.

Don’t wait until your truck will not start and the fuel system is full of metal.

📞 Call or text Superior Diesel now at 405-969-3312 to schedule your DCR conversion before it’s too late.

07/20/2026

We just finished a full front-end overhaul, trans service, and diff flush on this 3500. A truck that handles right and shifts smooth lasts longer and works harder. Whether you’re towing or daily driving, we make sure it’s done right.

Superior Diesel
📍 Edmond, OK
📞 405-969-3312

Message us or call to get your truck on the schedule this week!

Address

101 W Glenn Trail Drive
Edmond, OK
73025

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+14059693312

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