The NAPA 44057HD Water Pump delivers reliable cooling system performance for heavy-duty trucks by helping regulate engine temperature and maintain consistent coolant flow. Built to handle demanding operating conditions, it supports long-term durability and dependable performance.
Type: Heavy-duty engine water pump
Function: Circulates coolant to maintain proper engine temperature and prevent overheating
Construction: Heavy-duty housing with precision-engineered pump components
Application: Direct-fit replacement for select Class 6–8 trucks
Includes: Pump assembly (accessories may vary by application)
Freightliner
M2-112: 2011–2019
Columbia: 2008–2011
Coronado: 2010–2016
Coronado SD: 2010–2016
Century: 2008–2011
Cascadia: 2008–2024
Cascadia Evolution: 2014–2016
122SD: 2014–2023
114SD: 2012–2024
Sterling Truck
A9500: 2008–2009
L9500: 2009
Western Star (Selected Models)
4700: 2012–2024
4800: 2009–2024
4900: 2009–2024
5700XE: 2016–2023
6900: 2009–2024
Note: Verify compatibility with your specific year, engine, and configuration before purchasing.
Designed for heavy-duty cooling performance under demanding conditions
Helps protect engines from overheating with consistent coolant circulation
Durable construction supports extended service life
Direct-fit replacement for proper alignment and sealing
Confirm fitment by year, model, engine, and cooling system specifications before ordering
Replace gasket or seal as needed during installation
Refill and bleed the cooling system after installation for best performance
The NAPA 44057HD Water Pump delivers reliable cooling system performance for heavy-duty trucks by helping regulate engine temperature and maintain consistent coolant flow. Built to handle demanding operating conditions, it supports long-term durability and dependable performance.
Type: Heavy-duty engine water pump
Function: Circulates coolant to maintain proper engine temperature and prevent overheating
Construction: Heavy-duty housing with precision-engineered pump components
Application: Direct-fit replacement for select Class 6–8 trucks
Includes: Pump assembly (accessories may vary by application)
Freightliner
M2-112: 2011–2019
Columbia: 2008–2011
Coronado: 2010–2016
Coronado SD: 2010–2016
Century: 2008–2011
Cascadia: 2008–2024
Cascadia Evolution: 2014–2016
122SD: 2014–2023
114SD: 2012–2024
Sterling Truck
A9500: 2008–2009
L9500: 2009
Western Star (Selected Models)
4700: 2012–2024
4800: 2009–2024
4900: 2009–2024
5700XE: 2016–2023
6900: 2009–2024
Note: Verify compatibility with your specific year, engine, and configuration before purchasing.
Designed for heavy-duty cooling performance under demanding conditions
Helps protect engines from overheating with consistent coolant circulation
Durable construction supports extended service life
Direct-fit replacement for proper alignment and sealing
Confirm fitment by year, model, engine, and cooling system specifications before ordering
Replace gasket or seal as needed during installation
Refill and bleed the cooling system after installation for best performance
