Hella Stop Lamp Switch On Mom Off Spst 5A 12V Part No. 4570

The HELLA Stop Lamp Switch, part no. 4570, is a 12V electrical switch with contacts rated at 5A. It is described as an On-Mom-Off SPST switch, with 2 terminals, 1 pole and 2 positions, making the operating style and terminal count straightforward to verify before purchase.

This switch is a non-illuminated unit with a 12mm mount diameter and 13mm mount length. Those mounting dimensions matter if you are replacing an existing stop lamp switch and need the new part to suit the same opening and installation space.

HELLA lists this as a stop lamp switch in the auto electrical accessories group, sold individually as each. It also carries a three-year warranty, which gives buyers a clear reference point for a replacement electrical component intended for 12V use.

Key Features

• HELLA stop lamp switch
• Part no. 4570
• Contacts rated 5A at 12V
• On-Mom-Off SPST action
• 2 terminals, 1 pole
• 12mm mount diameter

Specifications

• Type: Switch
• Switch type: Stop lamp
• Switch action: Off - Mom On - SPST
• Voltage: 12V
• Power rating: 5A
• Mount diameter: 12mm
• Mount length: 13mm
• Number of poles: 1

Application and Buying Notes

Before ordering, compare the part number 4570, the 12V rating and the 5A contact rating with the switch you are replacing. Electrical switches can look similar while differing in terminal count, mounting size or switching action, so matching the specifications is the safest way to avoid a mismatch.

The mounting details are especially important here: this HELLA switch has a 12mm mount diameter and a 13mm mount length. If the existing opening, bracket or panel arrangement does not suit those measurements, the part may not install correctly even if it appears similar externally.

The switch is listed as Off - Mom On - SPST with 2 terminals and 1 pole. That combination is useful when you are checking wiring layout, terminal style and the way the switch is meant to operate in circuit. For a stop lamp application, confirming the original switch action and terminal arrangement is just as important as confirming the physical size.

Because no vehicle model fitment is provided, the best buying check is to match the part number, voltage, amperage, mounting dimensions and terminal count against the existing part or vehicle documentation. That approach keeps the selection grounded in the verified details supplied for this item.

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 4570 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, Power Rating (Amp) 5, Voltage 12, Mount Diameter 12mm, Number of Poles 1, Switch Type Stop Lamp, Product Group 1 AUTO ELEC ACCESSORIES, Part No. 4570.

Additional published details for cross-checking include Brand HELLA, Description Hella Stop Lamp Switch On Mom Off SPST (Contacts Rated 5A @ 12V), Number of Terminals 2, Switch Action Off - Mom On - SPST, Lamp Colour/s Not Applicable, Mount Length 13mm, Number of Positions 2, Switch Illumination Non Illuminated, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Hella Stop Lamp Switch On Mom Off SPST (Contacts Rated 5A @ 12V). Part number 4570 should be checked first. Listed voltage is 12. Listed output rating is 5. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 4570, 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 5 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 HELLA part no. 4570, the 12V / 5A electrical rating, the 12mm mount diameter, the 13mm mount length, and the 2-terminal SPST switch configuration to your existing application before purchase.

FAQ

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

The part number listed is 4570. For this listing, part number 4570 is the main reference point. Listed voltage is 12. Listed output rating is 5. These details should still be checked against the original unit before ordering.

What voltage is the switch rated for?

It is rated for 12V. For this listing, part number 4570 is the main reference point. Listed voltage is 12. Listed output rating is 5. These details should still be checked against the original unit before ordering.

What is the current rating?

The contacts are rated at 5A. For this listing, part number 4570 is the main reference point. Listed voltage is 12. Listed output rating is 5. These details should still be checked against the original unit before ordering.

How many terminals does it have?

It has 2 terminals. For this listing, part number 4570 is the main reference point. Listed voltage is 12. Listed output rating is 5. These details should still be checked against the original unit before ordering.

What are the mounting dimensions?

The mount diameter is 12mm and the mount length is 13mm. For this listing, part number 4570 is the main reference point. Listed voltage is 12. Listed output rating is 5. These details should still be checked against the original unit before ordering.

Is the switch illuminated?

No. It is listed as non illuminated. For this listing, part number 4570 is the main reference point. Listed voltage is 12. Listed output rating is 5. These details should still be checked against the original unit before ordering.