EWP115 Alloy - Remote Electric Water Pump (24V)

The EWP115 is a performance product that improves engine cooling control and capacity whilst giving you more power and torque and improved fuel economy. It is a practical alternative to the mechanical belt-driven pump or fitted as an auxiliary pump.

Mechanical belt-driven water pumps run directly off the motor and sap engine power … the EWP115 is hardwired into your electrical system, by-passing the engine and releasing up to an additional 10kW (13hp).

Purchase options

• Option: Pump Only; Part DC: DC8141; Notes: EWP® 115 Alloy 24V pump only.
• Option: Kit; Part DC: DC8041; Notes: Pump kit option (see kit details for full contents).
• Option: Combo with Controller; Part DC: DC8951; Notes: Combo pack with controller solution (controller also available separately).

Kit contents

• EWP® 115 (Alloy) 24V: 1

Technical specifications

• Voltage: 24 Volt Pump
• Operating voltage: 20V DC to 27V DC
• Maximum current: 5.5A @ 24V
• Flow rate (max): 139 L/min (36.7 US gal/min) @ 24V DC
• Operating temp.: -40° to 130°C (-40° to 266°F)
• Pump design: Clockwise centrifugal with volute chamber
• Pump weight: 920 grams (2.03 lb)
• Pump material: Aluminium (Powder Coated)
• Burst pressure: 500 kPa (72.5 psi)
• Seal: Ceramic face seal
• Self priming: No, none of our pumps are self-priming
• Fits hose sizes: 35mm to 51mm (1⅜” to 2”) | Inlet/Outlet: -16AN
• Push-on fitting size: EWP Inlet & Outlet 38mm with 3mm Sleeve: 44mm | with 6mm Sleeve: 51mm

EWP & controller installation demonstration

Combined with an LCD EWP/Fan Digital Controller (Sold separately Part DC8002 or EWP Combo Pack) will manage both the EWP and Thermatic fan operation. The Digital Controller will vary the speed of the EWP in response to the engine’s coolant temperature. Multiple temperature settings are provided on the Controller for either maximum power or fuel efficiency.

Key benefits

• universal fit
• more power
• more cooling
• increase fuel efficiency
• extend engine life
• world-leading technology

EWP® installation options

Installing an EWP® as an AUXILIARY PUMP

• Leaving the mechanical water pump in place, install the EWP into the bottom radiator hose.
• Remove the thermostat and drill two approx. 3mm (1/8") holes in the thermostat plate to allow some coolant circulation when the thermostat is closed. Re-install ensuring that the thermostat housing is clean and a new gasket is used if required.

EWP® installation – disabling Mechanical water pump

• Leaving the mechanical water pump in place, install the EWP into the bottom radiator hose and remove the manufacturer’s thermostat.
• You will need to bypass the water pump pulley by installing an appropriate length belt (not supplied). This method makes for an easy installation.
• If running the pump continuously remove the thermostat and drill two approx. 3mm (1/8") holes in the thermostat plate to allow some coolant circulation.

Disengaged mechanical water pump (recommended)

• Remove the mechanical water pump and remove the thermostat.
• Then remove the impeller from the mechanical pump shaft. Retain the mechanical water pump using the pump pulley as an idler to avoid re-routing the drive belt.
• Block any bypass passages and re-install the disengaged water pump ensuring that all gasket surfaces are clean and the new gaskets are properly fitted to prevent leaks.
• Install the EWP into the bottom radiator hose.

Removed mechanical water pump (Ideal)

• Remove the mechanical water pump and thermostat from the engine.
• Install a Davies Craig EWP Header Adaptor or blanking plate (not supplied). Ensuring the gasket surfaces are clean and the appropriate gasket or sealant is used to prevent leaks.
• Install the EWP into the bottom radiator hose. This method will require you to modify or replace the standard radiator hose.
• Install an appropriate length belt (not supplied) to drive the accessories.

In most cases EWP® will be adequately supported by the radiator hose. Where mounting is required, the EWP® must be soft mounted to protect against vibration. For the EWP® 115, EWP® 140 and EWP® 150 Part DC8700 or DC8710 Mounting bracket is recommended.