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ACDelco 251-591 Engine Water Pump

ACDelco 251-591 Engine Water Pump

ACDelco
Brand:ACDelco
Part Number: 251-591
UPC: 00036666841220
Weight: 15 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

PUMP KIT-WATER

An ACDelco GM Original Equipment Engine Water Pump circulates coolant through your vehicle's radiator and engine system to help maintain proper engine temperature and performance. This original equipment water pump has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Coated seals with a stainless steel spring for durability
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Manufactured to GM OE specification for fit, form, and function
  • Offering the quality, reliability, and durability of GM OE
  • Thoroughly tested for reliable, leak-resistant performance
  • Uniform wall sections and smooth coolant-flow cavities for efficient operation

Specifications:

Fan Clutch Included:
No
Grade Type:
Regular
Housing Material:
Aluminum
Hub Flange Mount Hole Quantity:
8
Hub Height:
125.1 mm
Impeller Material:
Steel
Impeller Rotation:
Standard
Includes Back Housing:
No
Includes Thermostat and Housing:
No
Mounting Hardware Included:
No
Outlet Port Quantity:
3
Pulley Included:
No
Pump Mount Hole Quantity:
7
Related Cooling Fan Components:
None
Timing Belt Included:
No
Water Pump Drive Type:
V-Belt

Features and Benefits:

  • – 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.
  • – After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
  • – Clean all excess dirt and debris from the water pump housing.
  • – 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 for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole.
  • – 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.
  • – Run your vehicle to increase engine temperature, and ensure the system is pressurized.
  • – 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.
  • Before purchasing and installing an engine water pump, make sure it is the correct fit for your vehicle.
  • Tips for Water Pump Inspection:
  • Tips for Water Pump Servicing & Installation:

Specifications:

Country of Origin:
US

Select a vehicle to narrow ACDelco 251-591 Engine Water Pump fitment info!

Last Updated: 03/10/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes
Chevrolet Blazer

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet Blazer



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet C10

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet C10



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet C10 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet C10 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet C20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet C20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet C20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet C20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet C20 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet C20 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet C30

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet C30



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet G20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet G20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet G30

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet G30



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet K10

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet K10



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet K10 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet K10 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet K20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet K20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet K20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet K20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet K20 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet K20 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet K30

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet K30



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet K5 Blazer

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet K5 Blazer



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet P20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet P20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet P20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet P20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet P30

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet P30



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet R10

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet R10



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet R10 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet R10 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet R1500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet R1500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet R20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet R20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet R20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet R20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet R20 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet R20 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet R2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet R2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet R2500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet R2500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet R30

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet R30



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet R3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet R3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet V10

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet V10



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet V10 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet V10 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet V1500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet V1500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet V20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

Chevrolet V20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
Chevrolet V20

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet V20



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet V20 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet V20 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet V2500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet V2500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet V30

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet V30



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
Chevrolet V3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

Chevrolet V3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC C1500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC C1500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC C1500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC C1500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC C2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC C2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC C2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC C2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC C2500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC C2500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC C3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC C3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC G2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC G2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC G3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC G3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC Jimmy

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC Jimmy



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC K1500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC K1500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC K1500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC K1500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC K2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC K2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC K2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC K2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC K2500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC K2500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC K3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC K3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC P2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC P2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC P2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC P2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC P2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC P2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC P3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC P3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC R1500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC R1500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC R1500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC R1500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC R2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC R2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC R2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC R2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC R2500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC R2500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC R3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC R3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC V1500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC V1500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC V1500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC V1500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC V2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: C
 

GMC V2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: C

1 Per Vehicle
GMC V2500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC V2500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC V2500 Suburban

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC V2500 Suburban



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle
GMC V3500

6.2L V8 Diesel OHV
1
 
W/GSKT
8th VIN Digit: J
 

GMC V3500



6.2L V8 Diesel OHV W/GSKT
8th VIN Digit: J

1 Per Vehicle