How to service the water pump on Chevrolet Astro?

To work on the Water Pump start by cooling the engine first and drain the coolant from the Radiator. Take out the air filter assembly the maf sensor and the upper fan protection part. You must remove the Drive Belt before taking out the fan and Fan Blade clutch parts. Loosen and take off coolant pump pulley bolts then remove the pulley from its position. Disconnect the clamps and bypass hoses from both the coolant pump and Radiator. Remove the four coolant pump bolts and take out the pump while checking the gasket surfaces for damages and burrs. Check all components and put new ones in place if needed. Insert coolant pump gaskets first and bolt the pump into place using 45 nm torque before fastening the four bolts to 33 ft. Lbs. Join both coolant components to their housing and fastening clamps and fit the Radiator Hose to the coolant pump. Fasten the coolant pump pulley using a torque of 25 nm (18 ft. Lbs.). Put back together the fan and fan blades through their mechanical connection plus the Drive Belt and Fan Shroud upper assembly with bolts. Install both the maf sensor and air cleaner assembly in their proper places. Complete the process by adding coolant to the Radiator followed by engine startup and leak inspection when the engine reaches its normal temperature.

OEM Chevrolet Astro Water Pump

H2O Pump

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6 Water Pumps found

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Chevrolet Astro Water Pump Part Number: 89060527
$232.95 MSRP: $456.07
You Save: $223.12 (49%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant
- Replaces: 12528917, 89017748, 12532528
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Water Pump Part Number: 19417097
$138.29 MSRP: $268.39
You Save: $130.10 (49%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant; Pump, Engine Coolant
- Replaces: 19201601, 88894005, 12532531, 12532529, 12369487
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1995 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Water Pump Part Number: 10032022
$87.38 MSRP: $125.03
You Save: $37.65 (31%)
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Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Astro | Base, CL, CS | 4 Cyl 2.5 L GAS
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Chevrolet Astro Water Pump Part Number: 12685965
$142.22 MSRP: $278.43
You Save: $136.21 (49%)
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Product Specifications
- Other Name: Pump Kit-Water; Pump Assembly; Water Pump Assembly; Pump Kit, Engine Coolant; Pump, Engine Coolant; Steering
- Replaces: 12522033, 12529305, 88894341
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Astro | Base, CL, CS | 6 Cyl 4.3 L GAS
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Chevrolet Astro Water Pump Part Number: 12491038
$94.23 MSRP: $230.74
You Save: $136.51 (60%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant
- Replaces: 12458920, 10181327
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1990 Chevrolet Astro | Base | 4 Cyl 2.5 L GAS
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Chevrolet Astro Water Pump Part Number: 12507784
Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Astro | Base, CL, CS | 4 Cyl 2.5 L GAS

Chevrolet Astro Water Pump

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This device found in Chevrolet Astro motor vehicles is central for regulating the engine temperature which is accomplished by moving coolant through the water jacket and toward the radiator. Today's Water Pumps are generally made of aluminum cast, which rotates with the help of belt clutch of crankshaft and has an impeller to pump water or coolant. Some signs of a bad water pump are: leakage, noise of the bearings, and high temperature due to the faulty impeller. Powerful water pumps can be procured for better coolant circulation, and Crankshaft can be between modified OE cast iron and special aluminum. Advantages such as no parasitic loss and selectable flow rates also apply to the electric water pumps, which are thus preferable in high-end car designs. The use of appropriate coolant every two years and proper replacement of damaged units are some of the most important things that should be performed to the water pump in order to serve a long and efficient time.

Chevrolet Astro Water Pump Parts and Q&A

Water Pump
89060527
Q: How to service the water pump on Chevrolet Astro?
A:
To work on the Water Pump start by cooling the engine first and drain the coolant from the Radiator. Take out the air filter assembly the maf sensor and the upper fan protection part. You must remove the Drive Belt before taking out the fan and Fan Blade clutch parts. Loosen and take off coolant pump pulley bolts then remove the pulley from its position. Disconnect the clamps and bypass hoses from both the coolant pump and Radiator. Remove the four coolant pump bolts and take out the pump while checking the gasket surfaces for damages and burrs. Check all components and put new ones in place if needed. Insert coolant pump gaskets first and bolt the pump into place using 45 nm torque before fastening the four bolts to 33 ft. Lbs. Join both coolant components to their housing and fastening clamps and fit the Radiator Hose to the coolant pump. Fasten the coolant pump pulley using a torque of 25 nm (18 ft. Lbs.). Put back together the fan and fan blades through their mechanical connection plus the Drive Belt and Fan Shroud upper assembly with bolts. Install both the maf sensor and air cleaner assembly in their proper places. Complete the process by adding coolant to the Radiator followed by engine startup and leak inspection when the engine reaches its normal temperature.