Cooling Systems – From Radiators to AC

Keeping your truck cool isn’t just about comfort – it’s about performance, safety, and protecting your load.

At STTR, we offer expert service and repairs for all things cooling — from engine radiators and A/C systems, or just trying to beat the heat in your cab, we’ve got your cooling systems covered from front to back.

Engine Cooling Systems: Keep Your Powertrain in Check

The radiator and engine cooling system are your first line of defense against overheating. Our team handles:

• Radiator service and replacement

• Water pumps, thermostats, and hoses

• Coolant flushes and system diagnostics

• Fan clutch repair or replacement

• Overheating diagnostics and repairs

Whether you’re dealing with a small leak or a full-on boil-over, we’ll diagnose the problem fast and get your rig back to peak operating temperature.

Cab Air Conditioning: Comfort You Can Count On

Cabin climate control isn’t a luxury – it’s essential, especially during long shifts and summer hauls. We service:

• AC compressors and condensers

• Cab blower motors and fans

• AC recharge and refrigerant leak repair

• Heater cores and HVAC controls

Stay cool when the pressure’s on with a fully functional HVAC system.

Why Choose STTR for Cooling System Service?

✅ Certified techs with experience across all major systems
✅ Quick diagnostics and repairs to minimize downtime
✅ Preventative maintenance that saves you money in the long run
✅ 24/7 emergency roadside assistance available for reefer failures and overheating events

Serving Pacific, WA and the greater South Sound region, STTR is your one-stop shop for heavy-duty cooling system maintenance and repair.

Schedule Service Today

Call us at (253) 691-6645 or request service online.
Let’s keep your truck — and your driver— cool, safe, and on the move.