DC8105

This part has been discontinued. Please see the replacement options below:

Discontinued Part #	Direct Replacement	Alternative Replacement
8105 (Pump Only)	#8106	#8109
8005 (Kit)	#8006	#8009
8907 (Combo)	#8908	#8919

The EWP^®80 is available for purchase in following options:

• Pump Only (Part #8105)
• Kit (Part #8005)
• Combo with Controller (Part #8907)

The EWP^®80 Electric Water Pump – simple, do-it-yourself, easy to install, designed to complement or replace your existing belt-driven, mechanical water pump. It will fit most vehicle makes and models fitted with naturally-aspirated or turbo engines up to two litres.

Contents

Part description	Units
EWP®80 - Nylon 12V Assembly	1
5x12 Flanged Hex Set Screw Zinc Silver	6
5x16 Flanged Hex Set Screw Zinc Silver	6
M5 FLANGE NUT ZINC SILVER	6

Technical specifications

Operating voltage	3V DC to 15V DC
Maximum current	7.5A @ 13V
Flow rate (max)	90 L/min (23.8 US gal/min) @ 13V DC
Operating temp.	-40° to 120°C (-40° to 248°F)
Pump design	Clockwise centrifugal with volute chamber
Pump weight	900 grams (2.0 lb)
Pump material	Nylon 66, 30% glass-filled
Burst pressure	350 kPa (50 psi)
Seal	Ceramic face seal
Fits hose size	32mm to 51mm (1⅜” to 2”)

EWP & controller installation demonstration

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.
• Block any bypass passages and re-install the disengaged water pump.
• 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).
• Install the EWP^® into the bottom radiator hose.

In most cases EWP^® will be adequately supported by the radiator hose. For the EWP^®115, EWP^®140 and EWP^®150 Part #8700 or #8710 Mounting bracket is recommended.