Cummins Duramax Powerstroke Diesel & Automotive Repair – Cottontown, TN – Swag Performance

Apr 2nd 2026

If you’re searching for reliable diesel repair near White House, Tennessee, Swag Performance is your trusted local shop. Conveniently located at 4007 Highway 31W in Cottontown, TN — just one mile north of White House on Highway 31W and only a couple miles off Interstate 65 in Northern Middle Tennessee, we provide expert service for light-duty diesel trucks and everyday vehicles.

Cummins, Duramax & Powerstroke Diesel Specialists

At Swag Performance, we specialize in Cummins, Duramax, and Powerstroke diesel engines. Whether you drive a Dodge Ram, Chevy/GMC Duramax, or Ford Super Duty, our technicians have the experience and diagnostic knowledge to handle everything from minor repairs to complete engine and turbocharger work. We understand the unique needs of diesel trucks and deliver reliable, performance-focused repairs you can trust.

Your Local Diesel & Auto Repair Experts

At Swag Performance, we proudly serve car & truck owners from:

White House, TN
Cottontown, TN
Cross Plains, TN
Portland, TN
Northern Middle Tennessee

Whether you’re local or passing through via I-65, our experienced, trusted technicians deliver dependable repairs at competitive prices.

⚠️ Appointment Only – Text to Schedule

To provide focused, high-quality service, Swag Performance operates by appointment only.

? Text to schedule your service visit: 615-348-8049

This ensures your vehicle gets the time and attention it deserves—without long wait times.

Full-Service Automotive & Diesel Repair Shop

We handle everything from routine maintenance to major repairs—all under one roof.

? General Repairs & Maintenance

Brake service and replacement
Tire sales, mounting, and balancing
Battery testing and replacement
Oil leak and coolant leak repairs
Check engine light diagnostics

? Suspension & Performance Upgrades

Precision wheel alignments
Lift kit installation
Suspension upgrades

⚙️ Major Repairs & Replacements

Engine replacement
Transmission replacement
Clutch replacement
Cylinder head gasket repair
Water pump replacement
Turbocharger service and replacement

? Advanced Diagnostics

We use modern diagnostic tools to quickly identify issues and provide accurate, cost-effective repairs. We’ll diagnose and repair your truck efficiently and correctly the first time.

Used Car Reconditioning Services for Dealers

We also offer professional used car and truck reconditioning services to help dealerships and resellers get vehicles lot-ready and sale-ready.

Perfect for dealer lots, wholesalers, and independent sellers looking to maximize vehicle value and sell faster.