Semi Truck Engine Overhauls
Complete engine rebuilds and overhauls for all semi truck makes and models, built with precision machining and quality parts.
Advanced ECM Diagnostics
Specialized ECM repair, mail-in service & calibration
Advanced Diesel Diagnostics
Expert Engine & Equipment Repair
Modern diagnostic tooling paired with deep electrical and mechanical expertise—focused on solving the problems other shops can’t. Select rebuild and diagnostic work by request.
Your trusted partner in Linden, TN.
25
Years Experience
1 on 1
Attention to Detail
100%
Quality Guaranteed
Our Services
Comprehensive diesel engine and equipment repair services backed by decades of experience and cutting-edge diagnostic technology.
Equipment Repair
Comprehensive repair services for heavy-duty equipment. From diagnostics to complete repairs, we keep your fleet running.
7.3 Powerstroke Performance
Specialized performance tuning and upgrades for 7.3 Powerstroke engines to enhance power, reliability, and fuel efficiency.
Computer Diagnostics & Electrical
State-of-the-art diagnostic equipment for precise troubleshooting. Expert electrical system repair and wiring solutions.
ECM Service & Calibration
Advanced ECM service with specialized calibration tools for heavy diesel control systems.
On-Site Diagnostics & Calibration Tools
Bring your unit in and we will run advanced diagnostics and calibration support in our shop when needed.
Recent Work
A quick look at the kind of heavy diesel rebuilds and ECM diagnostics & calibration work we support.
Why Choose Shafer Diesel
We combine traditional craftsmanship with modern technology to deliver unparalleled diesel engine and equipment repair services.
Quality you can count on
Every repair is backed by our commitment to excellence and customer satisfaction, so you get results you can trust.
- Quality Guaranteed
- Fast Turnaround
- Expert Technicians
- Customer-Focused, Transparent Communication
Modern Diagnostics Meet Expert Craftsmanship
At Shafer Diesel, we pride ourselves on combining decades of hands-on experience with the latest diagnostic technology. Our facility in Linden, TN is equipped with state-of-the-art computer diagnostic tools that allow us to quickly and accurately identify issues.
Whether you need a complete engine overhaul, performance upgrades for your 7.3 Powerstroke, or complex electrical repairs, our team has the expertise and equipment to get it done right.