DNG Diesel Truck Repair

07/16/2026

Don’t wait until inspection time catches you off guard.

For the rest of July, we are offering DOT Inspections for just $89.95 + tax!

06/09/2026

Check out the reason for this SCR conversion efficiency code!

04/14/2026

This isn’t guesswork. This is what we do.

Allison transmission replacement on a Freightliner box truck — done fast, done right.

Keep waiting… or get your truck back making money. Your call.

📞 203-751-0821
📍 Norwalk, CT

04/02/2026

04/02/2026

🔋 DEAD BATTERY? NOT TODAY. 🔋
Stop getting stranded and start your engine with confidence.
We stock Interstate Batteries — the power you can trust when it matters most.

✔ Reliable
✔ Long-lasting
✔ 18 month warranty

👉 Stop by and get powered up TODAY.

12/30/2025

Another Peterbilt back on the road 💪
ECM replacement and full reprogram on this PX-7 — no more headaches, no more ghost codes.

We don’t guess. We diagnose.
👨‍💻 Dealer-level programming
🔧 Heavy-duty expertise
🚨 Roadside + shop service

Hit us up for ANY electronic issues.

12/24/2025

From all of us at DNG Diesel, we wish you a safe and warm holiday season.
Thank you for your continued support throughout the year.
We will have availability starting the second week of January and look forward to working with you in the new year.