This product combines part numbers 0401 & 0409 into a convenient and economical value pack and can be used with our Thermatic Fans & Electric Water Pumps (EWP). The mechanical switch senses the coolant temperature after it passes through the engine block prior to entering the radiator & is fitted directly into the radiator hose via the adaptor. It is adjustable from 40° to 100°C (104° to 212°F). The kit comes with everything you need for a watertight and effective installation.

The Inline Sensor Adaptor simply fits into your engine’s top radiator hose. The adaptor ends for hose fitting are 35mm in size.

• With the use of our 3mm adaptor sleeve (Included in kit), this can be increased to 38mm (Part #18510)
• With the use of our 6mm adaptor sleeve (Optional), this can be increased to 41-42mm (Part #18511)

No need to squeeze the probe of the Mechanical Thermal Switch between the radiator inlet and radiator hose. This simple, economical Adaptor Kit allows easy fitting directly into the radiator hose. Just fit the probe into the compression fitting, remove about 17mm (2/3”) of radiator hose, fit the adaptor between each hose and secure the hose clamps.

KIT CONTENTS

• THERMAL SWITCH & ACCESSORIES: 1
• 3M WHITE SCOTCH LOCK: 1
• KNOB - FOR SWITCH: 1
• Adaptor - Rubber Sleeve 3mm: 2
• Brass Olive 6mm: 1
• Compression Fitting 1/4" (suits 5 & 6 mm Olive: 1
• Hose Clamp: 2
• Inline Adaptor 5/16": 1
• INSTRUCTIONS: 1

*Note: if using this switch for use with our EWP's, it will not vary the speed of the pump in response to engine temperature but rather turn the pump on and off at your set temperature. For EWP control, we would recommend the Digital Controller, part number 8002 which can manage both the EWP^® and your Thermatic Electric Fans.

Mechanical Thermal Fan Switch (12V & 24V) (Part 0401)
The Mechanical Thermal Fan Switch is adjustable from 40° to 100°C
(104° to 212°F). The thermal switch is mounted near the radiator and the stainless steel probe fitted inside the radiator hose. The thermal switch is then connected to the ignition circuit for operation. The thermal switch and relay kit enables a fan to operate both thermally and also when the air conditioning is running.

Temperature Sensor Adaptor Kit (Part 0409)
No need to squeeze the probe of the Mechanical Thermal Switch between the radiator inlet and radiator hose. This simple, economical Adaptor Kit allows easy fitting directly into the radiator hose. Just fit the probe into the compression fitting, remove about 17mm (2/3”) of radiator hose, fit the adaptor between each hose and secure the hose clamps.
The kit comes complete, as shown, for a watertight and effective probe installation. Extra rubber sleeves are supplied to enable fitment to radiator hose sizes from 32mm to 40mm (1¼” to 1½”) diameter. Suits all temperature sensors with a ¼” or 6mm outside diameter and temperature gauge senders with ¼” BSPT thread.

RELAYS 12 & 24 VOLT

The switch requires relay & wiring harness to run your fan.

*Not included in kit

For Single Fan:

• Part #1000 (12 Volt)
• Part #1001 (24 Volt)

For Dual Fan:

• Part #1002 (12 Volt)
• Part #1003 (24 Volt)