• Part Finders
  • Training
  • Get Napa Updates

Heavy Duty

Trust NAPA Belts/Hose Heavy Duty parts
to keep your fleet vehicles on the road.

All NAPA Belts/Hose Heavy Duty parts, including HD belts and HD hose, deliver OEM form, fit and function— and equal or longer service life. With the widest coverage of heavy duty belts, tensioners, heavy duty hose, A/C, heat exchangers, water pumps, thermostats— and our new, patented DEF hose— NAPA is the source for the auto parts you need to keep your fleet vehicles on the road, running reliably and profitably.

Access NAPA's Heavy-Duty Coolant Tubes Flyer here:

Napa Heavy Duty Coolant Tubes

Tech Tips

Looking for installation tips or automotive repair advice? Search our expansive list of technical resources. Find Tech Tips

Parts Locator/VIN Decoder

Use our extensive online auto part catalog or automotive VIN decoder to find the replacement car parts you need. Find Parts

NAPA Heating/Cooling Training

Watch videos and find info about a variety of NAPA Heating/Cooling products, from water pumps to fuel hose, on our training page. Learn More