Our services
At Welsh Diesel we offer, but are not limited to, the following services:
You can count on us to get your boat ready for the water. We will do anything from routine maintenance to emergency repairs. We are professional marine diesel and power systems specialists. We treat your investment as we would our own and leave everything as clean if not cleaner than it was when we started the repairs.
Aftercoolers
Battery testing and replacements
Coolant flushes or leak repairs
Electrical and alternator service
Electronic diagnostics and repair
Engine and gearbox repair + rebuilds
Engine and gearbox diagnostic services
Engine cooling
Fuel/oil additives
Fuel systems
Generator service + repairs
Hydraulic leaks
Injectors
Inverter repairs + installs
Lighting repairs, upgrades, and installs
Oil changes
On-site service + repairs
Preventative repairs
Steering system repairs
Water impellers
Welding
With over 8 years of experience working on heavy equipment, you can always be sure that you’re getting the best service for you and your equipment with no unnecessary repairs, or hidden costs.
Battery testing and replacements
Body and hardware repairs
Brakes
Coolant flushes or leak repairs
Cutting edges
DPF regenerations and repairs
Electrical and alternator service
Electronic diagnostics and repair
Engine and transmission repair + rebuilds
Engine, transmission, and brake diagnostic services
Exhaust and intake repairs
Final Drives
Front + rear differential services
Fuel/oil additives
Fuel systems
Generator service + repairs
Glass replacements
HVAC repair
Hydraulic cylinder rebuilds
Hydraulic leaks
Hydraulic repairs
Injectors
Lighting repairs, upgrades, and installs
Oil changes
On-site service + repairs
Pin + bushing repairs
Preventative repairs
Radiator + engine cooling
Tracks + Undercarriages
Welding
Wiring
Preventative maintenance is essential for keeping all vehicles running safely and reliably. By correcting existing issues and reducing breakdowns, we can extend the life of each vehicle with simple tasks such as changing oil, lubricating the chassis and moving parts, and replacing filters. At Welsh Diesel, we ensure each vehicle is serviced based on usage and specific needs.
Battery testing and replacements
Body and hardware repairs
Coolant flushes or leak repairs
DOT inspections
DPF regenerations and repairs
Electrical and alternator service
Electronic diagnostics and repair
Engine and transmission repair + rebuilds
All of our engine builds are built specific to each customer’s needs, wants, budgets and power goals. We can either order you a new/reman long block or rebuild your current engine.
As with our engine builds, all transmission builds are specific to each customer’s needs

Engine, transmission, and brake diagnostic services
Exhaust and intake
Front + rear differential services
Fuel/oil additives
Fuel systems
Generator service + repairs
HVAC repair
Hydraulic leaks and repairs
Injectors
Inverter repairs + installs
Lighting repairs, upgrades, and installs
Oil changes
On-site service + repairs
Preventative repairs
Radiator + engine cooling
Steering system repairs
Suspension repairs or replacements
Truck + trailer brakes and air systems
Welding
Wiring
Whether you’re need repairs or looking for performance upgrades, we make sure our services are affordable and reliable. With an experienced and honest team looking after you, you can always be sure that you’re getting the best service for you and your vehicle, with no unnecessary repairs or hidden costs.
You depend on your engine every minute of every day. We are dedicated to servicing your vehicle with a focus on dependable results and minimum downtime.
Battery testing and replacements
Body and hardware repairs
Brakes
Coolant flushes or leak repairs
DPF regenerations and repairs
EFI Live Tuning
Electrical and alternator service
Electronic diagnostics and repair
Engine and transmission repair + rebuilds
All of our engine builds are built specific to each customer’s needs, wants, budgets and power goals. We can either order you a new/reman long block or rebuild your current engine.

As with our engine builds, all transmission builds are specific to each customer’s needs
Engine, transmission, and brake diagnostic services
Exhaust and intake repairs or upgrades
Front + rear differential services
Fuel/oil additives
Fuel systems
Headstuds
HVAC repair
Injectors
Lift Kits
Lift Pumps
Lighting repairs, upgrades, and installs
Oil changes
On-site service + repairs
Preventative repairs
Radiator + engine cooling
Steering system repairs
Suspension repairs or replacements
Turbos
Welding
Wiring
When emergencies call, lives depend on your vehicles and equipment. Whether you need a replacement part, engine repair, or 10,000 feet of hose—consider it done.
PRIORITY SERVICE FOR EMERGENCY EQUIPMENT.
Aerial ladder service + structural repairs
Foam system repairs and installations
Fire pump and gearbox repairs (we are not currently able to do annual testing but we will be working on that soon)
Battery testing and replacements
Body and hardware repairs
Coolant flushes or leak repairs
DOT inspections
DPF regenerations and repairs
Electrical and alternator service
Electronic diagnostics and repair
Engine and transmission repair + rebuilds
Engine, transmission, and brake diagnostic services
Exhaust and intake repairs
Front + rear differential services
Fuel/oil additives
Fuel systems
Generator service + repairs
Heavy duty engine PM services
HVAC repair
Hydraulic cylinder rebuilds
Hydraulic leaks
Hydraulic repairs
Injectors
Inverter repairs + installs
Lighting repairs, upgrades, and complete installs
Oil changes
On-site service + repairs
Preventative Maintenance
Radiator + engine cooling
Steering system repairs
Suspension repairs or replacements
Truck + trailer brakes and air systems
Welding
Wiring
Before you buy a new tractor to accommodate the power demands of a new plow, planter, or other implement, you should consider saving money by uprating your current equipment. Up-rating not only adds value and capability to your current tractor, but has a minimal impact to the equipment’s reliability.
Battery testing and replacements
Body and hardware repairs
Coolant flushes or leak repairs
DPF regenerations and repairs
Electrical and alternator service
Electronic diagnostics and repair
Engine and transmission repair + rebuilds
Engine, transmission, and brake diagnostic services
Exhaust and intake repairs
Front + rear differentials
Fuel/oil additives
Fuel systems
GPS guidance repairs
HVAC repair
Hydraulic cylinder rebuilds
Hydraulic leaks
Hydraulic repairs
Injectors
Inverter repairs + installs
Lighting repairs, upgrades, and installs
Oil changes
On-site service + repairs
Preventative repairs
Radiator + engine cooling
Steering system repairs
Suspension repairs or replacements
Welding
Wiring
We are not just limited to mechanic work at Welsh Diesel.
If you have a project that you need some welding done you can count on us for the repairs.
We have the capabilities to weld steel, stainless, and aluminum both in the shop or in the field.
GMAW (Mig)
GTAW (Tig)
SMAW (Stick)
Brazing
