Hella Stop Lamp Switch Off Mom On Spst Contacts Rated 9A 12V Part No. 4566

The HELLA Stop Lamp Switch is a 12V switch with contacts rated at 9A, supplied as Part No. 4566. It is a stop lamp switch with an Off - Mom On - SPST switching action and 2 terminals, so the electrical style and terminal count are clearly identified before you compare it to your existing unit.

This switch is non illuminated and uses 1 pole with 2 positions. That combination is important when you are checking the control function and wiring layout, especially where the original application depends on a specific momentary or changeover style rather than a generic universal switch.

HELLA identifies this item under the product group Fuses Breakers Relays Switches, with a unit of measure of each. The listed warranty is three years, and the switch is described as having contacts rated 9A at 12V, which gives you a clear electrical reference point when matching replacement parts.

Key Features

• HELLA stop lamp switch
• Part No. 4566
• Off - Mom On - SPST switch action
• 2 terminals
• 12V rated
• 9A contact rating

Specifications

• Brand: HELLA
• Product type: Switch
• Switch type: Stop Lamp
• Part number: 4566
• Voltage: 12
• Power rating: 9A
• Number of terminals: 2
• Number of poles: 1

Application and Buying Notes

Before ordering, compare the part number 4566, the 2-terminal layout, and the Off - Mom On - SPST switch action with the switch already in the vehicle or equipment. Those details are the strongest identifiers here, because the listing does not include vehicle-specific fitment data and the function of a stop lamp switch can vary by application.

The 12V rating and 9A contact rating are the key electrical checks. If the original switch operates at a different voltage, has a different current requirement, or uses a different number of terminals or poles, it should not be treated as a direct match without further verification.

The switch is non illuminated, so it should be matched to a setup that does not require an internal lamp. The listed 1 pole and 2 positions also help narrow the comparison when you are confirming how the switch behaves in use and how it integrates with the existing circuit.

If you are replacing a worn or faulty stop lamp switch, the safest approach is to verify the physical connector style, the terminal count, the switching action, and the part number before fitting. That reduces the risk of ordering a switch that looks similar but operates differently once installed.

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 4566 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 Three Years, Number of Terminals 2, Switch Action Off - Mom On - SPST, Lamp Colour/s Not Applicable, Number of Positions 2, Switch Illumination Non Illuminated, Product Group 2 FUSES BREAKERS RELAYS SWITCHES, Part No. 4566.

Additional published details for cross-checking include Brand HELLA, Description Hella Stop Lamp Switch Off Mom On SPST (Contacts Rated 9A @ 12V), Number of Speeds 2, Power Rating (Amp) 9, Voltage 12, Number of Poles 1, Switch Type Stop Lamp, Product Group 1 AUTO ELEC ACCESSORIES.

Hella Stop Lamp Switch Off Mom On SPST (Contacts Rated 9A @ 12V). Part number 4566 should be checked first. Listed voltage is 12. Listed output rating is 9. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 4566, 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 voltage 12 and output 9 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.

Compatibility note: Confirm compatibility by matching Part No. 4566, the 2-terminal arrangement, the Off - Mom On - SPST switching action, and the 12V 9A electrical rating against the existing switch and application details before purchase.

FAQ

What is the part number for this HELLA stop lamp switch?

The listed part number is 4566. For this listing, part number 4566 is the main reference point. Listed voltage is 12. Listed output rating is 9. These details should still be checked against the original unit before ordering.

How many terminals does the switch have?

It has 2 terminals. For this listing, part number 4566 is the main reference point. Listed voltage is 12. Listed output rating is 9. These details should still be checked against the original unit before ordering.

What is the switch action?

The switch action is Off - Mom On - SPST. For this listing, part number 4566 is the main reference point. Listed voltage is 12. Listed output rating is 9. These details should still be checked against the original unit before ordering.

Is the switch illuminated?

No. The switch illumination is listed as non illuminated. For this listing, part number 4566 is the main reference point. Listed voltage is 12. Listed output rating is 9. These details should still be checked against the original unit before ordering.

What voltage and current rating does it have?

It is rated at 12V with contacts rated 9A. For this listing, part number 4566 is the main reference point. Listed voltage is 12. Listed output rating is 9. These details should still be checked against the original unit before ordering.

Is vehicle fitment listed for this item?

No vehicle fitment data is provided, so compatibility should be confirmed using Part No. 4566, the 2-terminal layout, and the listed switch action and electrical rating. For this listing, part number 4566 is the main reference point. Listed voltage is 12. Listed output rating is 9. These details should still be checked against the original unit before ordering.