Our Diesel Truck Repair Services

We take care of every core component on your heavy-duty diesel truck. Here's what we specialize in:

Axle Repair: Worn bearings, bent axles, or differential issues? We’ll get them sorted before they turn into breakdowns.

Transmission & Clutch Repair: Whether it’s hard shifting or a clutch that’s slipping, we repair or replace critical driveline components to keep your truck running smoothly.

Brake Repair: From worn shoes to air brake leaks and compressor problems—we get your braking system back to full stopping power.

Coolant System Repair: Overheating or coolant leaks can lead to major failures. We handle radiators, water pumps, thermostats, and more.

Performance ECM Tuning: Improve fuel economy, torque, and throttle response with custom programming tailored to your fleet’s needs.

Diagnostics & Electrical Repair: Check engine lights, battery drain issues, sensor failures—we use advanced tools to diagnose and repair quickly.

Driveline Repair: If your driveshaft is vibrating, noisy, or out of balance, we’ll inspect, rebuild, or replace it fast.

EGR & DPF Repair: Regens failing or filters clogged? We clean or replace diesel emissions systems for better performance and compliance.

Engine Repair, Rebuild, Overhaul & Conversion: From minor engine issues to full overhauls, we tackle everything under the hood—including custom conversions.

Suspension Repair: Sagging leaf springs or blown shocks? We restore your suspension to proper ride height and performance.

Exhaust System Repair: Fix leaks, boost backpressure, and stay compliant with DOT rules—we handle everything from manifolds to stacks.

HVAC Systems Repair: Stay comfortable year-round with working heating and A/C systems. We repair blowers, compressors, and more.

Hydraulic Hose Repair: From farm trucks to dump bodies, we crimp and replace worn hydraulic hoses to eliminate leaks and power loss.

Oil & Fluid Services: Regular oil and filter changes protect your investment. We also service transmissions, diffs, and coolant systems.

Experience the River Valley Difference!

Service Multiple Trucks at Once: We’ve built a facility that can handle five to six trucks at the same time, so your downtime stays short and your fleet stays productive.

Customer Service Focus: You’ll get fast scheduling, real-time updates, and mechanics who treat your equipment like their own.

Transparent Pricing: We provide upfront estimates with zero hidden costs. You’ll know exactly what you’re paying for—every time.

Easily Accessible: We’re based in Mount Horeb, WI, right off I-94 and I-151. Whether you're a local operator or hauling through the region, we’re easy to reach and ready to help.

Contact Us for Diesel Repairs in Mount Horeb, WI: Call 608-574-5785!

If your truck’s down or showing signs of failure, don’t wait. Call 608-574-5785 to schedule diesel repair work at River Valley Diesel in Mount Horeb, WI. We’ll fix it right—and fast.