EWP150 - Remote Electric Water Pump (24V)

Muscle up your engine cooling system with the Davies Craig EWP150 alloy Electric Water Pump. Like all EWPs, this advanced unit is designed for remote mounting in the engine bay to satisfy those higher horsepower, turbocharged, supercharged and ‘worked’ engines which develop excessive heat.

The compact EWP150 alloy unit is manufactured with -AN16 ORB internal inlet and outlet fitting for neat, tight screw-in fitting applications. This rugged alloy hi-flow electric water pump is designed to complement or replace the engine’s existing mechanical water pump, increasing power and improving coolant temperature control.

Purchase options

• Option: Pump Only; Part DC: DC8161; Notes: EWP® 150 Alloy 24V pump only.
• Option: Kit; Part DC: DC8061; Notes: Pump kit option with essential components.
• Option: Combo with Controller; Part DC: DC8971; Notes: Combo pack with controller solution.

Contents (Part DC8161)

• EWP® 150 Pump 24V: 1

Technical specifications

• Voltage: 24 Volt Pump
• Operating voltage: 20V DC to 27V DC
• Maximum current: 5.5A @ 24V
• Flow rate (max): 162 L/min (42.8 US gal/min) @ 24V DC
• Operating temp.: -40° to 120°C (-40° to 248°F)
• Pump design: Clockwise centrifugal with volute chamber
• Pump weight: 1,170 grams (2.6 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”) | -16AN ORB
• Push-on fitting size: EWP Inlet & Outlet 38mm; with 3mm Sleeve (DC8510) 44mm; with 6mm Sleeve (DC8511) 51mm

Installation demonstration & controller overview

EWP & Controller Installation Demonstration

Combined with an LCD EWP/Fan Digital Controller (Sold separately Part DC8002 or EWP Combo Pack), the system manages both EWP and Thermatic fan operation:

• Varies pump speed in response to coolant temperature.
• Multiple temperature targets for performance or fuel efficiency.
• Activates Thermatic fan(s) at 3°C (5.4°F) above the set temperature.
• Runs on after shutdown for up to 3 minutes (or until 10°C / 14°F below the set point) to reduce heat soak and help extend engine life.
• Combo Pack includes a DIY kit with everything needed for fitment, plus an instruction booklet.

Key benefits

The world’s most advanced total engine cooling management system:

• 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

• Leave the mechanical water pump in place and 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 circulation when the thermostat is closed. Refit with clean sealing surfaces and a new gasket if required.

EWP® installation – disabling the mechanical water pump

• Install the EWP into the bottom radiator hose and remove the manufacturer’s thermostat.
• Bypass the water pump pulley using an appropriate length belt (not supplied).
• If running the pump continuously, drill two approx. 3mm (1/8") holes in the thermostat plate to allow some circulation. Refit with clean sealing surfaces and a new gasket if required.

In both cases, the EWP pumps past the impeller of the mechanical water pump.

Disengaged mechanical water pump (recommended)

• Remove the thermostat and mechanical water pump.
• Remove the impeller from the pump shaft, then refit the pump and pulley as an idler to avoid re-routing the drive belt.
• Block bypass passages and refit with clean gasket surfaces and correctly installed gaskets to prevent leaks.
• Install the EWP into the bottom radiator hose.

Removed mechanical water pump (ideal)

• Remove the mechanical water pump and thermostat.
• Install a Davies Craig EWP header adaptor or blanking plate (not supplied), using the correct gasket or sealant on clean surfaces.
• Install the EWP into the bottom radiator hose (hose modification/replacement may be required).
• Fit an appropriate length belt (not supplied) to drive accessories.

In most cases the EWP® is supported by the radiator hose. If mounting is required, soft-mount the pump to protect against vibration. For EWP® 115, EWP® 140 and EWP® 150, mounting bracket Part DC8700 or DC8710 is recommended.