Product Summary

Mechanical Water Pump Type, Clockwise/Standard Rotation

  • Fits GM Gen III / IV LS
  • Twin Volute Design
  • Balanced Coolant Flow To Each Side Of The Engine
  • Replaceable Cartridge
  • Heavy Duty Bearing and Hub
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Key Specs

Water Pump TypeMechanical
Water Pump StyleShort Depth
RotationClockwise/Standard
Housing MaterialAluminum
Housing FinishNatural
See more specs

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Stewart Components 50025S Details

EMP/Stewart Components Pro Series Water Pumps are the latest technology for Professional Racing. By utilizing a Twin Volute housing and replaceable water pump cartridge, they offer a perfectly balanced flow between both sides of the block. They use less horsepower and can move more water than any other pumps. Pro Series pumps are cost efficient by allowing just the cartridge to be replaced, making it no longer necessary to change the whole water pump. The cartridge can be changed out very fast, by removing the pulley and four bolts. All Pro Series water pumps use an o-ring to seal the cartridge and do not use a backing plate, so there is no gasket to leak. Whether you race circle track, road race or drag race, professional or amateur you will benefit from these water pumps. Developed by EMP Stewart Components with Wegner Racing Engines, this pump offers more water flow and less horsepower draw than any other LS1 or LS6 pump. Using the factory mounting bolts and doing away with the restrictive thermostat allows this pump to flow up to 140 gallons per minute.

  • Fits GM Gen III / IV LS
  • Twin Volute Design
  • Balanced Coolant Flow To Each Side Of The Engine
  • Replaceable Cartridge
  • Heavy Duty Bearing and Hub
  • Clockwise Rotation
  • Short Version
  • LS1 and LS6 requires different pulleys and hoses
  • Not a direct replacement for street cars

Stewart Components 50025S Specifications

KEY SPECS
MFG. Part #50025S
BrandStewart Components
Water Pump TypeMechanical
Water Pump StyleShort Depth
RotationClockwise/Standard
Housing MaterialAluminum
Housing FinishNatural
GENERAL
Pilot Diameter.750"
Overall Length6.65"
Sold in QuantityEach
Noteshub height 6.255 inch

Questions & Answers

1 Question • 1 Answer

what is pump spacing? from block to pulley face?

by JC

• 2 years ago

1 answer

1 of 1 questions shown

Fitment

  • GM LM4

  • GM LS6

  • GM LS2

  • GM LSA

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM L9H

  • GM L94

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM L9H

  • GM L94

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM L9H

  • GM L76

  • GM LC9

  • GM LMG

  • GM LY5

  • GM LY5

  • GM LM7

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • GM LS1

  • GM LS3

  • GM LS1

  • GM LS1

  • GM LS6

  • GM LS2

  • GM LS3

  • GM LS4

  • GM LS4

  • 4.8 Chevy LS V8

  • GM LM7

  • 4.8 Chevy LS V8

  • GM L20

  • GM LM7

  • GM LY2

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • GM LQ4

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  • GM LQ9

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  • GM LM7

  • GM LQ4

  • GM LQ9

  • GM LQ4

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  • GM LS3

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  • GM L77

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  • GM LC9

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  • GM LMG

  • GM LY5

  • GM LQ4

  • GM L96

  • GM LMG

  • GM LY5

  • 4.8 Chevy LS V8

  • GM L59

  • GM LM7

  • 4.8 Chevy LS V8

  • GM LMG

  • GM LY5

  • 6.2 Chevy LS V8

  • GM L9H

  • GM LC9

  • GM LMG

  • GM L9H

  • GM LC9

  • GM LMG

  • GM LC9

  • GM LMG

  • GM LMG

  • GM LY5

  • GM LH6

  • GM LS2

  • GM LM4

  • GM LM4

  • GM LM4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM L94

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM L94

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM L94

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM L94

  • GM LQ4

  • GM L20

  • GM L9H

  • GM LC9

  • GM LMG

  • GM L33

  • GM L59

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM L96

  • GM LQ4

  • GM LQ4

  • GM L96

  • GM LQ4

  • GM L96

  • GM L96

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L20

  • GM LM7

  • GM LY2

  • 4.8 Chevy LS V8

  • GM L20

  • GM L94

  • GM LM7

  • GM LY2

  • GM L94

  • GM LC9

  • GM LMG

  • GM LM7

  • GM L59

  • GM LM7

  • GM LQ4

  • GM L96

  • GM LQ4

  • GM L96

  • GM LQ4

  • 6.2 Chevy LS V8

  • GM LH8

  • GM LH9

  • GM LH8

  • GM LH9

  • GM LS1

  • GM LS3

  • GM LS1

  • GM LS2

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