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

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

Chevy Small Block V8, Mechanical Water Pump Type, Short Water Pump Style, High-Volume Pump Flow

7 Reviews | 5 Answered Questions
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Stewart Components 12103 Small Block Chevy Stage 1 Water Pump, Short
Stewart Components 12103 Small Block Chevy Stage 1 Water Pump, Short
Stewart Components 12103 Small Block Chevy Stage 1 Water Pump, Short
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Stewart Components 12103 Small Block Chevy Stage 1 Water Pump, Short
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Part # 91015538
$84.99
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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
  • Recommended for stock, OEM, or mild performance applications
  • The castings are internally modified for performance and reliability

Details

Water Pump Type:
Mechanical
Water Pump Style:
Short
Rotation:
Clockwise/Standard
Pump Flow:
High-Volume
Housing Material:
Cast-Iron
Housing Finish:
Natural
Housing Color:
Natural
Block to Hub Distance:
5.625 Inch (5-5/8")
Heater Inlet Size:
3/4" NPT on the top and 1/2" NPT
Hose ID:
1.81"
Shaft Length:
0.54"
Pilot Shaft Diameter:
0.63 Inch
Gasket(s) Included:
Yes
Hardware Included:
No
Weight:
10.3 lbs.
MFG. Part #:
12103
Sold in Quantity:
Each
Notes:
Clearance from back of pump to engine block mount is .875"
GTIN Code:
694455000120

Info

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.   

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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