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2000 Chevrolet Silverado 1500

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ACDelco 12551905 Engine Water Pump O-Ring
for 2000 Chevrolet Silverado 1500

ACDelco 12551905 Engine Water Pump O-Ring - 2000 Chevrolet Silverado 1500

ACDelco
Brand:ACDelco
Part Number: 12551905
UPC: 00707773947388
Weight: 0.05 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the ACDelco 12551905 Engine Water Pump O-Ring for your 2000 Chevrolet Silverado 1500. Buy now and secure your purchase online!

GM Genuine Parts Engine Water Pump O-Rings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These o-rings are used in some applications instead of paper or composite gaskets to seal the water pump housing. The interface between components will have a machined groove to accept the O-ring. The O-ring is slightly compressed when assembled to provide a liquid-tight seal, keeping engine coolant in and air and dirt 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

Features and Benefits:

  • 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
  • Made from heat and chemical-resistant materials
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • Tips for Water Pump Inspection:
  • – 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.
  • – Clean all excess dirt and debris from the water pump housing.
  • – Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole.
  • – Run your vehicle to increase engine temperature, and ensure the system is pressurized.
  • Tips for Water Pump Servicing & Installation:
  • – After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
  • – Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
  • – Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
  • – Do not use any non-approved flush agents, and replace the coolant according to manufacturer's specifications.
  • – Flush 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.
  • – Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
  • – Never strike the water pump shaft, since this will damage the new water pump.
  • – Torque all bolts according to the manufacturer's specifications, and adjust belts to proper tension (if applicable) to manufacturer's specifications.
  • – Use sealant tabs only if recommended. Some sealant tabs or similar compounds may restrict coolant flow through the passages of some cooling systems.
  • – With the new pump installed, turn the hub by hand and check for rotation.
  • Tips to Help Prevent Water Pump Failure:
  • – 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 necessary.
  • – 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.
  • – 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.
  • – Inspect the thermostat and radiator cap. Examine your thermostat and radiator cap, and replace if they show signs of sticking or leaking.
  • – 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.
  • – Utilize 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.

Specifications:

Color:
Black
Height:
1.6 in.
Informational Chart 1:
PL25_PL26_IC_WaterPumpComposition.jpg
Informational Chart 2:
PL25_PL26_IC_CoolingSystemOperation.jpg
Length:
5 in.
Material:
Rubber
Maximum Diameter:
4.44 in.
Minimum Diameter:
4.24 in.
Pack Of:
5
Programming Required:
NO
Rim Shape:
Round
Thickness:
0.10 in.
Weight:
.05 lb
Width:
2 in.

Manufacturer Warranty:

24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see ACDelco.com.

ACDelco 12551905 Engine Water Pump O-Ring compatibility with your 2000 Chevrolet Silverado 1500...

Last Updated: 08/31/2022

Years Vehicle Per Vehicle Fit NotesFitment Notes

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 
Chevrolet Silverado 1500

4.8L V8 Gas OHV
1
 
WATER PUMP BACKPLATE
8th VIN Digit: V
 

Chevrolet Silverado 1500



4.8L V8 Gas OHV WATER PUMP BACKPLATE
8th VIN Digit: V

1 Per Vehicle

2001

 

2000

 

1999

 

2001

 

2000

 

1999

 
Chevrolet Silverado 1500

5.3L V8 Gas OHV
1
 
WATER PUMP BACKPLATE
Eng: LM7
8th VIN Digit: T
 

Chevrolet Silverado 1500



5.3L V8 Gas OHV WATER PUMP BACKPLATE
Eng: LM7
8th VIN Digit: T

1 Per Vehicle

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