Reddot Switch - Rotary 3 Speed, Part No. RD537790P

The Reddot Switch - Rotary 3 Speed is a replacement switch supplied as a single unit, sold each, with part number RD537790P. It is listed under the cooling product group and AC units, which makes it relevant for applications where a rotary 3-speed control switch is required for the air conditioning system.

This is a straightforward switch component rather than a complete control assembly. If you are replacing a faulty rotary selector, matching the part number RD537790P and confirming the physical style of the original switch are the most important checks before ordering.

The unit is backed by a 12 months warranty and is identified as a Reddot product. For workshop, trade, or DIY use, it is best treated as a specific replacement part for compatible AC unit applications rather than a universal switch.

Because no vehicle fitment is provided, the safest approach is to compare the original switch, the part number, and the application in the vehicle or AC unit before purchase. That is the most reliable way to avoid ordering the wrong rotary control.

Key Features

• Rotary 3-speed switch
• Reddot brand
• Part No. RD537790P
• Sold each
• Designed for AC units
• Listed in cooling product group

Specifications

• Product type: Switch
• Description: Switch - rotary 3 speed
• Brand: Reddot
• Part number: RD537790P
• Unit of measure: Each
• Warranty: 12 months
• Product group 1: Cooling
• Product group 2: AC Units

Application and Buying Notes

When replacing a rotary 3-speed switch, the part number RD537790P is the key identifier to verify first. A switch can look similar to another unit but still differ in terminal layout, mounting style, or intended AC application, so matching the existing part exactly is the safest approach.

This item is listed for cooling and AC units, which indicates it belongs in an air conditioning control application rather than a general-purpose electrical switch. If the original unit is damaged or unreadable, remove it carefully and compare the switch style, connector arrangement, and any markings before ordering.

The product is supplied each, so if the vehicle or equipment uses more than one control switch, confirm the quantity required before checkout. Checking the original part number, the physical configuration, and the AC unit application will save time and reduce the chance of a return.

A 12 months warranty is provided, but warranty cover does not replace the need to confirm the correct application. The best practice is to compare the old switch, the vehicle or equipment details, and the RD537790P reference together before fitting.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number RD537790P helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type SWITCH, Unit of Measure EACH, Warranty 12 Months, Product Group 2 AC UNITS, Part No. RD537790P, Brand REDDOT, Description SWITCH - ROTARY 3 SPEED, Product Group 1 COOLING.

SWITCH - ROTARY 3 SPEED. Part number RD537790P should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number RD537790P, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a switch in workshop, fleet, trade, agricultural, or construction service, the listed electrical specification should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

The listed warranty is 12 Months. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm compatibility by matching part number RD537790P with the original switch, physical style, connector arrangement, and the AC unit application before ordering. Fitment has not been verified here, so do not rely on the product name alone.

FAQ

What is this part used for?

It is a rotary 3-speed switch listed for cooling and AC units. It is intended as a replacement switch component, sold each. For this listing, part number RD537790P is the main reference point. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is RD537790P. For this listing, part number RD537790P is the main reference point. These details should still be checked against the original unit before ordering.

Is this a complete control assembly?

No. It is listed as a switch, not as a complete control assembly. For this listing, part number RD537790P is the main reference point. These details should still be checked against the original unit before ordering.

How many come in a pack?

The unit of measure is each, so one switch is supplied per order. For this listing, part number RD537790P is the main reference point. These details should still be checked against the original unit before ordering.

Does it have a warranty?

Yes. The listed warranty is 12 months. For this listing, part number RD537790P is the main reference point. These details should still be checked against the original unit before ordering.

How should I check fitment before buying?

Match the part number RD537790P, compare the original switch style and connector arrangement, and confirm it suits the AC unit application before ordering. For this listing, part number RD537790P is the main reference point. These details should still be checked against the original unit before ordering.