Bosch 0392020039 auxiliary water pump for the 2002-2005 Volkswagen Jetta and other vehicles circulates coolant in an auxiliary cooling circuit. This Bosch auxiliary water pump is a new, electric 10 W unit, and every pump is tested for proper function.
- Torque tested to verify the impeller-shaft mating and to detect loose impeller-shaft press fits
- Vacuum leak tested to check sealing through the housing, seals, tube binding and plug
- Checked against mating parts such as the pulley, brake plate, housing and tensioners
- Withstands engine temperatures up to 125°C and has few moving parts
- Quiet operation designed to reduce cabin noise
- Optimized coolant flow for system efficiency, which contributes to lower CO2 emissions and lower fuel use
Quick facts
- Part: Bosch 0392020039 auxiliary water pump
- Also called: engine auxiliary water pump
- Fits: 2002-2005 Volkswagen Jetta and other vehicles
- Condition: New
A coolant leak at the pump, noise coming from it or a temperature warning can mean the pump is failing. Before you replace an engine auxiliary water pump, rule out a blown fuse, a damaged electrical connector and a coolant leak elsewhere in the circuit, since those can look just like a failed pump.
Fits
The same pump suits the 2002-2006 Volkswagen Golf and the 2001-2006 Audi TT Quattro, along with a wide range of other vehicles, particularly European models with an auxiliary cooling circuit. A 2002-2005 Volkswagen Jetta takes one pump. If your car is not named here, look it up on the Buyer's Guide tab.
Specifications
Fit and size
- Quantity per vehicle: 1
- Inlet port quantity: 1
- Outlet port quantity: 1
Build and materials
- Type: electric
- Wattage: 10 W
- Withstands engine temperatures up to 125°C
- Condition: New
