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GM Genuine Parts 251-2065 | Engine Water Pump Gasket
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GM Genuine Parts 251-2065 | Engine Water Pump Gasket

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$4.99
Part Number
ACD251-2065
UPC:
808709081852
Condition:
New
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Description

GM Genuine Parts Engine Water Pump Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These gaskets are used between the water pump housing and the engine block or another component to seal the interface between the components. The gasket may be made of fiber or a rubberized composite material that provides a liquid-tight connection. The gasket helps keep the engine coolant in and keeps air out. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

BRAND: GM Genuine Parts

FEATURES:

  • Cadillac;Chevrolet;GMC
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • May be made from fiber or a rubberized composite material
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • Water Pump Gasket

SPECIFICS:

Center Bore Diameter (in)3.915 in
Center Bore Diameter (mm)99.45 mm
FAQ - Answer 1Yes. Always consult the Vehicle Owner's manual or an expert technician before making any repairs or adjustments
FAQ - Answer 2Yes. ACDelco GM Original Equipment parts are equivalent to your GM vehicle's original factory components.
FAQ - Answer 3No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.
FAQ - Answer 4Yes. The water pump is responsible for moving coolant through your vehicle's cooling system, keeping the heat generated by your engine at acceptable levels, and helping prevent overheating. A malfunctioning water pump can cause your engine to overheat, which may result in severe and costly engine damage.
FAQ - Answer 5Yes. As part of regular cooling system operation, the water pump sends hot coolant to the heater core of your engine, which transfers heat into the passenger cabin of your vehicle. If this hot coolant is unable to reach the heater core, then this heat transfer cannot occur, and your passenger compartment remains colder than you want.
FAQ - Answer 6No. Your vehicle's water pump keeps coolant moving as long as the engine is running and stops when the engine is turned off. If you want to be able to circulate coolant for a short time after the engine has been turned off, an auxiliary electric water pump is needed.
FAQ - Question 1Should the Vehicle Owner's manual or an expert technician be consulted before making any repairs or adjustments?
FAQ - Question 2Will ACDelco GM Original Equipment Water Pumps, Kits and other components match the quality of my GM vehicle's original factory parts?
FAQ - Question 3Do all water pumps look the same?
FAQ - Question 4Can a malfunctioning water pump harm my engine?
FAQ - Question 5Does the water pump affect the temperature inside the passenger compartment of my vehicle?
FAQ - Question 6Does the water pump work when my vehicle is turned off?
Good Maintenance Practices - Section 1 - HeaderBefore purchasing and installing an engine water pump gasket, make sure it is the correct fit for your vehicle.
Good Maintenance Practices - Section 2 - Bullet 1Clean all excess dirt and debris from the water pump housing.
Good Maintenance Practices - Section 2 - Bullet 2Run your vehicle to increase engine temperature, and ensure the system is pressurized.
Good Maintenance Practices - Section 2 - Bullet 3Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole.
Good Maintenance Practices - Section 2 - Bullet 4A stain around the weep hole is acceptable. However, if a weep occurs with the engine running and the coolant system pressurized, then the water pump should be replaced.
Good Maintenance Practices - Section 2 - HeaderTips for Water Pump Inspection:
Good Maintenance Practices - Section 3 - Bullet 1Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
Good Maintenance Practices - Section 3 - Bullet 10Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
Good Maintenance Practices - Section 3 - Bullet 2Flush the cooling system completely, using power flush equipment or thermal cycling the system with clean water three times. The most effective method of system flushing is to use a coolant exchanger, following the manufacturer's operating instructions.
Good Maintenance Practices - Section 3 - Bullet 3Do not use any non-approved flush agents and replace the coolant according to manufacturer's specifications.
Good Maintenance Practices - Section 3 - Bullet 4Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
Good Maintenance Practices - Section 3 - Bullet 5Never strike the water pump shaft, since this will damage the new water pump.
Good Maintenance Practices - Section 3 - Bullet 6Torque all bolts according to the manufacturer's specifications and adjust belts to proper tension (if applicable) to manufacturer's specifications.
Good Maintenance Practices - Section 3 - Bullet 7Use sealant tabs only if recommended. Some sealant tabs or similar compounds may restrict coolant flow through the passages of some cooling systems.
Good Maintenance Practices - Section 3 - Bullet 8With the new pump installed, turn the hub by hand and check for rotation.
Good Maintenance Practices - Section 3 - Bullet 9After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
Good Maintenance Practices - Section 3 - HeaderTips for Water Pump Servicing & Installation:
Height (in)0.4
Length (in)5.8
Mount Hole Diameter (mm)7.5 mm
Mount Hole Quantity7
Programming RequiredNo
Signs of Wear & Troubleshooting - Section 1 - Bullet 1Leaking Coolant - Puddles of coolant under your vehicle, a constant drip or stream of coolant from the water pump's weep hole, or a constantly empty or low coolant reservoir are all signs of potential water pump wear, and may be caused by cracks in the pump, or seal or gasket failures.
Signs of Wear & Troubleshooting - Section 1 - Bullet 2Engine Overheating - If your vehicle's engine overheats, it may not be receiving the required coolant flow. Make sure that your vehicle's cooling system contains the proper level of coolant.
Signs of Wear & Troubleshooting - Section 1 - Bullet 3Rumbling Noise in the Pump - A rumbling, squeaking, or screeching noise near the front of your vehicle when you start it may indicate a malfunctioning water pump bearing.
Signs of Wear & Troubleshooting - Section 1 - Bullet 4Visible Component Wear - Worn seals, corrosion, cavitation/pitting of pump components, or a loose or wobbly pump shaft are all signs of wear that may lead to water pump failure and should be addressed.
Signs of Wear & Troubleshooting - Section 1 - HeaderSigns of wear for engine water pump seals include but are not limited to:
Weight (lb)0.02
Width (in)5.2

Attributes
Product type:
Aftermarket
Brand Description:
Water Pump Gasket
Programming Required:
No
Thickness (Inch):
0.014
Hazardous Material:
No
Minimum Order Quantity:
1
Features & Benefits - Bullet 2:
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Features & Benefits - Bullet 4:
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features & Benefits - Bullet 3:
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
Features & Benefits - Bullet 1:
May be made from fiber or a rubberized composite material
Weight (lb) (Pound):
0.02
Height (in) (Inch):
0.4
Width (in) (Inch):
5.2
Length (in) (Inch):
5.8
Signs of Wear & Troubleshooting - Section 1 - Bull:
Rumbling Noise in the Pump - A rumbling, squeaking, or screeching noise near the front of your vehicle when you start it may indicate a malfunctioning water pump bearing.
Signs of Wear & Troubleshooting - Section 1 - Bull:
Engine Overheating - If your vehicle's engine overheats, it may not be receiving the required coolant flow. Make sure that your vehicle's cooling system contains the proper level of coolant.
Signs of Wear & Troubleshooting - Section 1 - Bull:
Visible Component Wear - Worn seals, corrosion, cavitation/pitting of pump components, or a loose or wobbly pump shaft are all signs of wear that may lead to water pump failure and should be addressed.
FAQ - Question 4:
Can a malfunctioning water pump harm my engine?
FAQ - Answer 2:
Yes. ACDelco GM Original Equipment parts are equivalent to your GM vehicle's original factory components.
FAQ - Question 3:
Do all water pumps look the same?
FAQ - Question 1:
Should the Vehicle Owner's manual or an expert technician be consulted before making any repairs or adjustments?
Life Cycle Status:
Announced
FAQ - Question 2:
Will ACDelco GM Original Equipment Water Pumps, Kits and other components match the quality of my GM vehicle's original factory parts?
Life Cycle Status Description:
Announced - Part has been announced to customers on a paper “New Number Announcement”. Part is active.
Signs of Wear & Troubleshooting - Section 1 - Head:
Signs of wear for engine water pump seals include but are not limited to:
Item Level GTIN:
00808709081852
Features & Benefits - Bullet 5:
GM regularly updates production and service part designs to integrate new materials and technologies
FAQ - Question 6:
Does the water pump work when my vehicle is turned off?
FAQ - Question 5:
Does the water pump affect the temperature inside the passenger compartment of my vehicle?
FAQ - Answer 1:
Yes. Always consult the Vehicle Owner's manual or an expert technician before making any repairs or adjustments
FAQ - Answer 3:
No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.
Good Maintenance Practices - Section 1 - Header:
Before purchasing and installing an engine water pump gasket, make sure it is the correct fit for your vehicle.
Good Maintenance Practices - Section 2 - Bullet 1:
Clean all excess dirt and debris from the water pump housing.
Good Maintenance Practices - Section 2 - Bullet 2:
Run your vehicle to increase engine temperature, and ensure the system is pressurized.
Good Maintenance Practices - Section 2 - Bullet 3:
Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole.
Good Maintenance Practices - Section 2 - Bullet 4:
A stain around the weep hole is acceptable. However, if a weep occurs with the engine running and the coolant system pressurized, then the water pump should be replaced.
Good Maintenance Practices - Section 3 - Bullet 1:
Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
Good Maintenance Practices - Section 3 - Bullet 3:
Do not use any non-approved flush agents and replace the coolant according to manufacturer's specifications.
Good Maintenance Practices - Section 3 - Bullet 4:
Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
Good Maintenance Practices - Section 3 - Bullet 5:
Never strike the water pump shaft, since this will damage the new water pump.
Good Maintenance Practices - Section 3 - Bullet 6:
Torque all bolts according to the manufacturer's specifications and adjust belts to proper tension (if applicable) to manufacturer's specifications.
Good Maintenance Practices - Section 3 - Bullet 7:
Use sealant tabs only if recommended. Some sealant tabs or similar compounds may restrict coolant flow through the passages of some cooling systems.
Thickness (Millimeter):
0.35
Good Maintenance Practices - Section 2 - Header:
Tips for Water Pump Inspection:
Mount Hole Quantity:
7
Mount Hole Diameter (mm):
7.5 mm
Center Bore Diameter (in):
3.915 in
Center Bore Diameter (mm):
99.45 mm
Good Maintenance Practices - Section 3 - Header:
Tips for Water Pump Servicing & Installation:
Good Maintenance Practices - Section 3 - Bullet 8:
With the new pump installed, turn the hub by hand and check for rotation.
Good Maintenance Practices - Section 3 - Bullet 9:
After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
Good Maintenance Practices - Section 3 - Bullet 10:
Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
Country of Origin:
United States
Weight - Each (Gross Pounds):
00.02
Height - Each (Inch):
00.50
Length - Each (Inch):
06.30
Width - Each (Inch):
05.70



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