EMP Stewart Components Electric Water Pump E558A-BK
This lightweight, robust pump provides features and benefits not currently available in any other electric water pump. Stewart's Electric Water Pump has a 10,000+ hour lifespan and includes universal remote mounting with single speed flow up to 55 GPM. These pumps are available hand-polished, or anodized in red or black, and are set to revolutionize the performance racing industry.
Features:
Computer Controlled, Brushless Motor
High Efficiency Flow-Through In-Line Design
Liquid Cooled Motor
Compact, Lightweight Design
Comes in Anodized Black or Red
Note: Electric pumps utilizing special sized AN Fitting inlets and outlets are only available in red.
Benefits:
Decreased Energy Draw
Drive Mechanism Independent of Engine RPM
Cools Engine after Shutdown
Easy Remote Mounting - No Weight Penalty
Can be used with 12 and 16 Volt Applications
Weight: 5 lbs.
Dimensions: 6.3” long x 4.25” wide
Inline Booster Pump - Stewart's inline booster pump is intended for vehicles that experience overheating problems in low RPM situations. Since mechanical water pump speed is directly linked to engine speed, overheating becomes a major problem in situations such as parades, cruises, and stop-and-go traffic. The inline booster pump solves this problem by working in conjunction with the mechanical pump to create constant added flow to the engine block; the pump has been proven to increase flow by more than 300% at idle!
These pumps are currently being used by NHRA Pro Stock Champion Warren Johnson and Kurt Johnson by Dart Industries, and Jim Yates — as well as road racing American Lemans and SCCA World Challenge.
This lightweight, robust pump provides features and benefits not currently available in any other electric water pump. Stewart's Electric Water Pump has a 10,000+ hour lifespan and includes universal remote mounting with single speed flow up to 55 GPM. These pumps are available hand-polished, or anodized in red or black, and are set to revolutionize the performance racing industry.
Features:
Computer Controlled, Brushless Motor
High Efficiency Flow-Through In-Line Design
Liquid Cooled Motor
Compact, Lightweight Design
Comes in Anodized Black
1.750" INLET AND OUTLET SLIP ON'S
Benefits:
Decreased Energy Draw
Drive Mechanism Independent of Engine RPM
Cools Engine after Shutdown
Easy Remote Mounting - No Weight Penalty
Can be used with 12 and 16 Volt Applications
Weight: 5 lbs.
Dimensions: 6.3” long x 4.25” wide
Inline Booster Pump - Stewart's inline booster pump is intended for vehicles that experience overheating problems in low RPM situations. Since mechanical water pump speed is directly linked to engine speed, overheating becomes a major problem in situations such as parades, cruises, and stop-and-go traffic. The inline booster pump solves this problem by working in conjunction with the mechanical pump to create constant added flow to the engine block; the pump has been proven to increase flow by more than 300% at idle!
These pumps are currently being used by NHRA Pro Stock Champion Warren Johnson and Kurt Johnson by Dart Industries, and Jim Yates — as well as road racing American Lemans and SCCA World Challenge.
Block / Remote Mount | Remote Mount |
Pump Flow | 55 GPM |
Weight | 5 lbs |
Voltage | 12-16 volt |
Amp Draw | 8 amps |
Inlet Size | 1-3/4 in |
Inlet Fitting Style | Hose Barb |
Outlet Size | 1-3/4 in |
Outlet Fitting Style | Hose Barb |
Material | Aluminum |
Color | Black |
Finish | Anodized |
Quantity | Each |


