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ACDelco 252-596 | Engine Water Pump
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ACDelco 252-596 | Engine Water Pump

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$64.59
Part Number
ACD252-596
UPC:
00021625495408
Condition:
New
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Description
Water Pump Kit

BRAND: ACDelco

SPECIFICS:

ACD_RemanDesNo
AltPA_360_mm150.87
Casting Number81-18361C
Fan Clutch IncludedNO
FAQ - A1Yes. ACDelco Professional Water Pump Kits and Water Pumps are for both GM and non-GM vehicle applications.
FAQ - A2Yes. ACDelco Professional Water Pump Kits and Water Pumps are packaged with the gaskets, seals, and O-rings needed for installation.
FAQ - A3No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.
FAQ - A4Yes. 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 - A5Yes. 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 - A6No. 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 - Q1Can I use ACDelco Professional Water Pump Kits and Water Pumps on my non-GM vehicle?
FAQ - Q2Do ACDelco Professional Water Pump Kits and Water Pumps come with installation components?
FAQ - Q3Do all water pumps look the same?
FAQ - Q4Can a malfunctioning water pump harm my engine?
FAQ - Q5Does the water pump affect the temperature inside the passenger compartment of my vehicle?
FAQ - Q6Does the water pump work when my vehicle is turned off?
Features & Benefits - B1All Makes water pumps fit GM vehicles as well as a wide range of non-GM vehicles
Features & Benefits - B2Thoroughly tested for reliable, leak-free performance
Features & Benefits - B3Coated seals support seal longevity and durability
Features & Benefits - B4Heat-treated shaft assemblies provide superior strength and durability over non-treated assemblies
Features & Benefits - B5High-quality bearings are permanently sealed and lubricated for greater durability and long life
Features & Benefits - B6Come with premium, high-quality replacement components needed for trouble-free and accurate installation
Features & Benefits - B7Uniform wall sections and smooth coolant-flow cavities for efficient operation
Features & Benefits - B8Cast-iron or aluminum design, depending on vehicle application
Good Maintenance Practices - S1 B1Clean all excess dirt and debris from the water pump housing.
Good Maintenance Practices - S1 B2Run your vehicle to increase engine temperature, and ensure the system is pressurized.
Good Maintenance Practices - S1 B3Inspect 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 - S1 B4A 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 - S1 HTips for Water Pump Inspection:
Good Maintenance Practices - S2 B1Determine the root cause of failure, particularly if the water pump failed prematurely.
Good Maintenance Practices - S2 B10After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
Good Maintenance Practices - S2 B11Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
Good Maintenance Practices - S2 B2Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
Good Maintenance Practices - S2 B3Flush 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 - S2 B4Do not use any non-approved flush agents, and replace the coolant according to manufacturer's specifications.
Good Maintenance Practices - S2 B5Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
Good Maintenance Practices - S2 B6Never strike the water pump shaft, since this will damage the new water pump.
Good Maintenance Practices - S2 B7Torque all bolts according to the manufacturer's specifications, and adjust belts to proper tension (if applicable) to manufacturer's specifications.
Good Maintenance Practices - S2 B8Use 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 - S2 B9With the new water pump installed, turn the hub by hand and check for rotation.
Good Maintenance Practices - S2 HTips for Water Pump Servicing & Installation:
Good Maintenance Practices - S3 B1Flush your cooling system whenever the water pump or other system components are replaced. This will help prevent contamination from entering the system, which may result in repeated failure.
Good Maintenance Practices - S3 B2Utilize quality coolant when refilling your cooling system with the recommended 50/50 coolant/water mix. Distilled water should be used, as hard tap water can leave mineral deposits in the cooling system and reduce coolant flow, or result in corrosion and seal damage. Contaminated or depleted coolant can also result in corrosion and seal damage, and lead to pump failure. Take care to select the correct coolant for your vehicle by consulting the vehicle manufacturer's service information.
Good Maintenance Practices - S3 B3Never overtighten your drive belts. Belts that are too tight may cause an overload on pump bearings, greatly reducing the life of the water pump.
Good Maintenance Practices - S3 B4Inspect the fan blade. If damage is not detected, bent blades, loose rivets, and cracks may result in premature bearing failure. If damage is found, do not try to repair the fan-the part should be replaced.
Good Maintenance Practices - S3 B5Ensure that your engine fan pulley (or clutch, if used) is seated properly on the pump's shaft. If the fan wobbles during rotation, vibration resulting in premature bearing wear may occur. Also check the fan clutch for wear and replace as necessary.
Good Maintenance Practices - S3 B6Inspect the thermostat and radiator cap. Examine your thermostat and radiator cap, and replace if they show signs of sticking or leaking.
Good Maintenance Practices - S3 HTips to Help Prevent Water Pump Failure:
Height7.5
Housing MaterialGrey Iron
Hub Height5.947
Hub Hole Quantity4
Hub Hole Thread Diameter0.3125
Impeller MaterialSteel
Impeller RotationSTANDARD
Impeller Vane Quantity6
Includes Back HousingNO
Informational Chart 1PL25_PL26_IC_WaterPumpComposition.jpg
Informational Chart 2PL25_PL26_IC_CoolingSystemOperation.jpg
Installation WarningsNO
Keyword SearchACDelco; Professional Engine Water Pump; Engine Water Pump; Water Pump; Water Pump Gasket; Water Pump Seal; Water Pump O-Ring; Water Pump Replacement Components; Automotive Replacement Engine Water Pumps; HVAC; Heating, Ventilation and Air Conditioning; Automotive Cooling; Automotive Heating; All Makes
Length11.4
Marketing Statement - Product LineWhen it comes to protecting the life of your engine, ACDelco Professional Water Pumps offer the heat control you need to keep things cool. Built to meet the latest manufacturer-specified designs, ACDelco's full line of Professional Water Pumps offers a wide range of water pump kits, ideal for your car, truck or SUV. ACDelco Professional Water Pump kits provide premium aftermarket components that fit GM vehicles as well as a wide range of non-GM vehicles on the road today. Trust ACDelco Professional Water Pumps to protect your vehicle's vital systems.
Mkt_State_Warranty_CA24 Months/40,000 KM (Parts Only). Please see ACDelcocanada.com for more details.
Mkt_State_Warranty_US24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see ACDelco.com for more details.
Mounting Hardware IncludedNo
Mounting Hole Quantity8
Outlet Quantity3
Product DescriptionAn ACDelco Professional, premium aftermarket Engine Water Pump circulates coolant through your vehicle's radiator and engine system to help maintain proper engine temperature and performance. The gaskets, seals, and O-rings packaged with this Professional, premium aftermarket water pump help guarantee that all necessary parts are available for trouble-free installation. ACDelco Professional Water Pumps are a high quality replacement for many vehicles on the road today. This premium aftermarket replacement engine water pump is manufactured to meet your expectations for fit, form, and function.
Pulley IncludedNo
Signs of Wear & Troubleshooting - S1 B1Leaking 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 - S1 B2Engine 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 - S1 B3Rumbling 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 - S1 B4Visible 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 pump failure, and should be addressed.
Thermostat And Housing IncludedNo
Vintage_Part_IndicatorN
Water Pump Drive TypeTIMING_BELT
Weight13.3
Width8.1

DOWNLOADS:

APPLICATIONS:

  • 1985-1987 Buick Regal
  • 1981-1985 Buick LeSabre
    • w/ A/C; w/ 2 Outlets
  • 1986-1990 Buick LeSabre
  • 1977-1978 Buick LeSabre
    • w/ A/C
  • 1981-1985 Buick LeSabre
    • w/ A/C
  • 1971-1972 Oldsmobile F85
    • w/ A/C
  • 1981-1983 Buick Estate Wagon
    • w/ A/C
  • 1981-1981 Pontiac Bonneville
    • w/ A/C
  • 1978-1984 Oldsmobile Cutlass Calais
    • w/ A/C
  • 1979-1982 Oldsmobile Cutlass Calais
    • w/ A/C; HD Cooling
  • 1975-1980 Oldsmobile Cutlass Salon
    • w/ A/C
  • 1979-1981 GMC C1500
    • w/ A/C
  • 1983-1984 GMC Caballero
  • 1971-1985 Oldsmobile Cutlass Supreme
    • w/ A/C
  • 1980-1983 Oldsmobile Cutlass Cruiser
    • w/ A/C
  • 1981-1981 Pontiac Grand Prix
    • w/ A/C
  • 1973-1985 Oldsmobile Toronado
    • w/ A/C
  • 1978-1978 Pontiac Bonneville
  • 1971-1972 Oldsmobile Toronado
  • 1978-1980 Pontiac Bonneville
    • w/ A/C, X
  • 1977-1978 Pontiac Grand Safari
    • w/ A/C
  • 1978-1980 Pontiac Catalina
    • w/ A/C, X
  • 1980-1980 Buick LeSabre
  • 1986-1990 Chevrolet Caprice
  • 1971-1985 Oldsmobile Cutlass Supreme
    • w/ A/C; HD Cooling
  • 1985-1985 Oldsmobile Cutlass Salon
    • w/ A/C
  • 1979-1981 Oldsmobile Cutlass
    • w/ A/C; HD Cooling
  • 1971-1981 Oldsmobile Cutlass
    • w/ A/C
  • 1971-1971 Oldsmobile 442
    • w/ A/C
  • 1977-1977 Pontiac Grand Prix
    • w/ A/C
  • 1979-1985 Cadillac Eldorado
  • 1978-1978 GMC C15
    • w/ A/C
  • 1977-1979 Buick Estate Wagon
    • w/ A/C
  • 1973-1976 Oldsmobile Omega
    • w/ A/C
  • 1980-1983 Oldsmobile Cutlass Cruiser
    • w/ A/C; HD Cooling
  • 1982-1983 Buick Regal
    • w/ A/C
  • 1980-1983 Buick Estate Wagon
    • w/ A/C; w/ 2 Outlets
  • 1981-1985 Buick Electra
    • w/ A/C
  • 1981-1981 Pontiac Catalina
    • w/ A/C
  • 1980-1980 GMC C2500 Suburban
    • w/ A/C
  • 1979-1985 Buick Riviera
    • w/ A/C; w/ 2 Outlets
  • 1975-1975 Buick Apollo
    • w/ A/C
  • 1981-1981 Buick Century
    • w/ A/C
  • 1975-1976 Buick Skylark
    • w/ A/C
  • 1971-1981 Oldsmobile 98
    • w/ A/C
  • 1978-1979 Pontiac Bonneville
    • w/ A/C
  • 1975-1975 Pontiac Ventura
    • w/ A/C
  • 1976-1977 Oldsmobile Cutlass
  • 1971-1975 Oldsmobile Vista Cruiser
    • w/ A/C
  • 1977-1977 Buick Regal
    • w/ A/C
  • 1978-1978 GMC C15 Suburban
    • w/ A/C
  • 1976-1976 Pontiac Ventura
  • 1981-1984 Pontiac Bonneville
    • w/ A/C; 2nd Design
  • 1987-1990 Cadillac Brougham
  • 1985-1987 Oldsmobile Cutlass Salon
  • 1979-1984 Cadillac DeVille
  • 1986-1987 Buick Electra
  • 1975-1977 Oldsmobile Cutlass Salon
    • w/ A/C; HD Cooling
  • 1976-1977 Pontiac LeMans
    • w/ A/C
  • 1971-1977 Oldsmobile Cutlass
    • w/ A/C; HD Cooling
  • 1982-1984 Chevrolet Monte Carlo
    • w/ A/C
  • 1982-1984 Oldsmobile 98
  • 1979-1986 Cadillac Fleetwood
  • 1979-1981 GMC C1500 Suburban
    • w/ A/C
  • 1983-1984 Oldsmobile Cutlass Calais
  • 1976-1976 Oldsmobile Cutlass Tiara
    • w/ A/C
  • 1977-1979 Pontiac Firebird
    • w/ A/C
  • 1979-1980 Oldsmobile Cutlass Salon
    • w/ A/C; HD Cooling
  • 1986-1990 Oldsmobile Custom Cruiser
  • 1980-1980 Pontiac Catalina
  • 1983-1986 Pontiac Parisienne
  • 1983-1984 Chevrolet El Camino
  • 1982-1983 Chevrolet Malibu
    • w/ A/C
  • 1978-1978 Pontiac Bonneville
    • w/ A/C, X
  • 1987-1989 Pontiac Safari
  • 1986-1988 Oldsmobile Cutlass Supreme
  • 1976-1985 Cadillac Seville
  • 1977-1977 Buick Century
    • w/ A/C
  • 1977-1978 Buick Riviera
    • w/ A/C
  • 1977-1985 Buick Electra
    • w/ A/C; w/ 2 Outlets
  • 1977-1979 Buick Electra
    • w/ A/C
  • 1978-1978 Pontiac Catalina
    • W /A.C, W/O X
  • 1982-1984 Pontiac Grand Prix
    • w/ or w/o A/C; 2nd Design
  • 1976-1976 Oldsmobile Cutlass Tiara
    • w/ A/C; HD Cooling
  • 1980-1985 Buick Riviera
    • w/ A/C
  • 1980-1985 Chevrolet Caprice
    • w/ A/C or w/o A/C; 2nd Design; w/ "4" cast in OE Pump Above Water Inlet; Distance From Pump Block Mtn. Surface to Pulley Surface is 5.95"
  • 1971-1985 Oldsmobile Custom Cruiser
    • w/ A/C
  • 1977-1977 Buick Riviera
    • w/ A/C; w/ 2 Outlets
  • 1978-1979 Pontiac Catalina
    • w/ A/C
  • 1980-1985 Chevrolet Impala
    • w/ A/C
  • 1971-1985 Oldsmobile Delta 88
    • w/ A/C
  • 1977-1979 Buick LeSabre
    • w/ A/C; w/ 2 Outlets
  • 1981-1981 Chevrolet C10
    • w/ A/C
  • 1976-1977 Pontiac Grand LeMans
    • w/ A/C
  • 1981-1981 Chevrolet Caprice
Warranty Information
1-year Replacement unlimited-mileage warranty
Attributes
Part Type:
Aftermarket
Product Description:
Water Pump Kit
Mounting Hardware Included:
No
Housing Material:
Grey Iron
Mounting Hole Quantity:
8
Outlet Quantity:
3
Pulley Included:
No
Casting Number:
81-18361C
Hazardous Material:
No
Minimum Order Quantity:
1
Features & Benefits - Bullet 2:
Thoroughly tested for reliable, leak-free performance
Features & Benefits - Bullet 4:
Heat-treated shaft assemblies provide superior strength and durability over non-treated assemblies
Features & Benefits - Bullet 3:
Coated seals support seal longevity and durability
Features & Benefits - Bullet 1:
All Makes water pumps fit GM vehicles as well as a wide range of non-GM vehicles
Weight (lb) (Pound):
13.3
Height (in) (Inch):
7.5
Width (in) (Inch):
8.1
Length (in) (Inch):
11.4
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 pump failure, and should be addressed.
FAQ - Question 4:
Can a malfunctioning water pump harm my engine?
FAQ - Answer 2:
Yes. ACDelco Professional Water Pump Kits and Water Pumps are packaged with the gaskets, seals, and O-rings needed for installation.
Life Cycle Status:
Announced
FAQ - Question 3:
Do all water pumps look the same?
Life Cycle Status Description:
Announced - Part has been announced to customers on a paper “New Number Announcement”. Part is active.
FAQ - Question 1:
Can I use ACDelco Professional Water Pump Kits and Water Pumps on my non-GM vehicle?
Item Level GTIN:
00021625495408
Features & Benefits - Bullet 7:
Uniform wall sections and smooth coolant-flow cavities for efficient operation
Features & Benefits - Bullet 6:
Come with premium, high-quality replacement components needed for trouble-free and accurate installation
FAQ - Question 2:
Do ACDelco Professional Water Pump Kits and Water Pumps come with installation components?
Features & Benefits - Bullet 5:
High-quality bearings are permanently sealed and lubricated for greater durability and long life
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. ACDelco Professional Water Pump Kits and Water Pumps are for both GM and non-GM vehicle applications.
Good Maintenance Practices - Section 1 - Bullet 1:
Clean all excess dirt and debris from the water pump housing.
Good Maintenance Practices - Section 1 - Bullet 2:
Run your vehicle to increase engine temperature, and ensure the system is pressurized.
Good Maintenance Practices - Section 1 - 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 1 - 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.
FAQ - Answer 3:
No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.
Features & Benefits - Bullet 8:
Cast-iron or aluminum design, depending on vehicle application
Good Maintenance Practices - Section 1 - Header:
Tips for Water Pump Inspection:
Good Maintenance Practices - Section 2 - Bullet 1:
Determine the root cause of failure, particularly if the water pump failed prematurely.
Good Maintenance Practices - Section 2 - Bullet 2:
Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
Good Maintenance Practices - Section 2 - Bullet 4:
Do not use any non-approved flush agents, and replace the coolant according to manufacturer's specifications.
Good Maintenance Practices - Section 2 - Bullet 5:
Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
Good Maintenance Practices - Section 3 - Bullet 1:
Flush your cooling system whenever the water pump or other system components are replaced. This will help prevent contamination from entering the system, which may result in repeated failure.
Good Maintenance Practices - Section 3 - Bullet 3:
Never overtighten your drive belts. Belts that are too tight may cause an overload on pump bearings, greatly reducing the life of the water pump.
Good Maintenance Practices - Section 3 - Bullet 4:
Inspect the fan blade. If damage is not detected, bent blades, loose rivets, and cracks may result in premature bearing failure. If damage is found, do not try to repair the fan-the part should be replaced.
Good Maintenance Practices - Section 3 - Bullet 5:
Ensure that your engine fan pulley (or clutch, if used) is seated properly on the pump's shaft. If the fan wobbles during rotation, vibration resulting in premature bearing wear may occur. Also check the fan clutch for wear and replace as ne
Good Maintenance Practices - Section 3 - Bullet 6:
Inspect the thermostat and radiator cap. Examine your thermostat and radiator cap, and replace if they show signs of sticking or leaking.
Informational Chart 1:
PL25_PL26_IC_WaterPumpComposition.jpg
Good Maintenance Practices - Section 2 - Header:
Tips for Water Pump Servicing & Installation:
Good Maintenance Practices - Section 2 - Bullet 7:
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 2 - Bullet 6:
Never strike the water pump shaft, since this will damage the new water pump.
Good Maintenance Practices - Section 2 - Bullet 8:
Use 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 2 - Bullet 9:
With the new water pump installed, turn the hub by hand and check for rotation.
Good Maintenance Practices - Section 3 - Header:
Tips to Help Prevent Water Pump Failure:
Good Maintenance Practices - Section 2 - Bullet 11:
Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
Informational Chart 2:
PL25_PL26_IC_CoolingSystemOperation.jpg
Good Maintenance Practices - Section 2 - Bullet 10:
After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
Fan Clutch Included:
No
Water Pump Drive Type:
Timing belt
Impeller Rotation:
Standard
Impeller Material:
Steel
Hub Height (Millimeter):
150.87
Includes Back Housing:
No
Impeller Vane Quantity:
6
Installation Warnings:
No
Hub Height (Inch):
5.947
Hub Hole Quantity:
4
Thermostat And Housing Included:
No
Hub Hole Thread Diameter (Inch):
0.3125
Country of Origin:
China
Weight - Each (Gross Pounds):
13.30
Height - Each (Inch):
07.50
Length - Each (Inch):
11.40
Width - Each (Inch):
08.10



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