Munn Diesel Repair & Sales

07/29/2026

PDI tuners on sale while supplies last! Normally $2150 on sale right now for $1150 plus free mount with the purchase. These won’t last long so call in and we can hold yours for you!
They work on Cummins, cat, Detroit and paccar all sales final

07/04/2026

04/10/2026

02/20/2026

🚛 TRANSMISSION & CLUTCH PROBLEMS? WE’VE GOT YOU COVERED. 🔧

At Munn Diesel Repair & Sales, we specialize in transmission and clutch repairs for:

✔ Heavy-Duty Trucks
✔ Light-Duty Trucks
✔ Farm & Work Trucks

From clutch replacements to full transmission repairs, our experienced diesel technicians get you back on the road fast with quality work you can trust.

📍 923 Hwy 42, Sumrall, MS
📞 769-307-7066

👉 Don’t wait until it fails — call today and schedule your service!

02/19/2026

🔥 TURN UP THE POWER 🔥

FullTilt Performance Manifolds are built to handle the heat, boost, and horsepower your diesel demands. Whether you’re towing, racing, or building a serious street truck, FullTilt delivers the flow and durability you can trust.

✔ Improved exhaust flow
✔ Increased turbo efficiency
✔ Reduced EGTs
✔ Heavy-duty cast construction

👉 Available at Munn Diesel
🌐 Shop online at www.munndieselrepair.com

Message us today for availability and pricing 💪

02/18/2026

🚛💪 HERD Heavy-Duty Truck Bumpers
Built for maximum protection and premium strength.
Perfect for work trucks that don’t back down.
📦 Shipping available!
📍 Available at Munn Diesel
923 Hwy 42, Sumrall, MS 39482
🌐 www.munndieselrepair.com
Stop by or message us for details!

02/17/2026

🔧 Munn Diesel Repair & Sales 🔧

When your diesel equipment needs reliable service or quality parts, we’ve got you covered. From diagnostics and repairs to filters, fuel system parts, and more — we keep you working, not waiting.

📍 923 Hwy 42, Sumrall, MS 39482
📞 769-307-7066

Get back to work with confidence.