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Part # 91015538

Stewart Components 12103 Small Block Chevy Stage 1 Water Pump, Short

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  • They are compatible with stock lines and brackets
  • Provides equal flow to left and right cylinder heads
  • It is precision ground hub for perfect pully alignment

$94.99

each

In Stock


Quantity

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Product Summary

Chevy Small Block V8, Mechanical Water Pump Type

  • They are compatible with stock lines and brackets
  • Provides equal flow to left and right cylinder heads
  • It is precision ground hub for perfect pully alignment
  • Recommended for stock, OEM, or mild performance applications
  • The castings are internally modified for performance and reliability

Key Specs

MFG. Part #12103
BrandStewart Components
Water Pump TypeMechanical
Water Pump StyleShort
Pump FlowHigh-Volume

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Details

Uses new, OEM cast iron castings precision machined and assembled by Stewart Components to their exacting standards. They feature higher flow and pressure for better cooling. They have a 3/4" bearing and 5/8" shaft. 

  • Castings are internally modified for performance and reliability 
  • Compatible with stock lines and brackets
  • Precision ground hub for perfect pully alignment
  • Equal flow to left and right cylinder heads 
  • Recommended for stock, OEM, or mild performance applications 
  • One year warranty

Note: If using a mechanical fan, we suggest using a 3/4" shaft water pump.

Learn how to choose the correct water pump for your application by reading our tech article.  SBC - Short vs Long Water Pump.   

Specifications

KEY SPECS
MFG. Part #12103
BrandStewart Components
Water Pump TypeMechanical
Water Pump StyleShort
Pump FlowHigh-Volume
GENERAL
RotationClockwise/Standard
Housing MaterialCast-Iron
Housing FinishNatural
Housing ColorNatural
Block to Hub Distance5.625 Inch (5-5/8")
Heater Inlet Size3/4" NPT on the top and 1/2" NPT
Hose ID1.81"
Shaft Length0.54"
Pilot Shaft Diameter0.63 Inch
Gasket(s) IncludedYes
Hardware IncludedNo
Weight10.3 lbs.
Sold in QuantityEach
NotesClearance from back of pump to engine block mount is .875"
GTIN Code694455000120