Hella Door Light Switch Off Mom On Spst 2A 12V Part No. 4553

The Hella Door Light Switch is a 12V switch with an Off - Mom On - SPST action, rated at 2A, and identified as Part No. 4553. It is a non-illuminated door light switch with 1 pole, 1 terminal, and 2 positions, which makes it a straightforward option where a compact on/off style door-operated switch is required.

Mounting is through a 12mm diameter opening and screw, and the plunger is noted to automatically adjust to the door gap on initial operation. That detail matters when checking whether the switch will suit the panel or door-side setup you are working with, especially where mounting space is limited or the switch needs to sit neatly in an existing opening.

The listed maximum load is 12V 3.5A, while the contact rating is 2A at 12V. In practical terms, that means the electrical load and intended use need to stay within the stated ratings, and the switch should be selected with the application in mind rather than assumed to suit every door light circuit.

This is supplied as a Hella switch, sold as each, and carries a three-year warranty. For buyers comparing replacement switches, the most useful identifiers here are the 12mm mounting size, the Off - Mom On - SPST action, the 12V specification, and Part No. 4553.

Key Features

• Hella door light switch
• Off - Mom On - SPST switch action
• 12V rated switch
• Contact rating: 2A at 12V
• Maximum load: 12V 3.5A
• 12mm diameter mounting opening with screw

Specifications

• Brand: Hella
• Part No.: 4553
• Product type: Switch
• Switch type: Door Light
• Voltage: 12V
• Power rating: 2A
• Maximum load: 12V 3.5A
• Mount diameter: 12mm

Application and Buying Notes

Before ordering, check the mounting point against the 12mm diameter opening and screw mounting requirement. If the existing switch hole is not 12mm, or the panel arrangement uses a different fixing style, this switch may not be the right physical replacement even if the electrical ratings look close.

The electrical side also needs to match the job. This switch is listed at 12V, with contacts rated 2A at 12V and a maximum load of 12V 3.5A, so it should only be considered where those figures suit the circuit. The switch action is Off - Mom On - SPST, which is a specific operating style rather than a generic universal switch function.

The plunger automatically adjusts to the door gap on initial operation, which can be useful where the switch is being set up as a door light actuator. Even so, it is still important to compare the part number, the 12mm mounting size, the 1 terminal layout, and the 2-position action against the switch being replaced.

Because this is a non-illuminated switch, it will not provide a lamp or indicator light function. The listed lamp colour is not applicable, so if the original switch includes illumination, that difference should be checked before purchase.

For replacement work, the safest approach is to match Part No. 4553 and confirm the physical and electrical details together. A door light switch can look similar to another style, but the mounting diameter, terminal count, load rating, and switch action are the details that decide whether it is the correct choice.

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 4553 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) 2, Voltage 12, Mount Diameter 12mm, Number of Positions 2, Switch Illumination Non Illuminated, Product Group 1 AUTO ELEC ACCESSORIES, Part No. 4553.

Additional published details for cross-checking include Brand HELLA, Description Hella Door Light Switch Off Mom On SPST (Contacts Rated 2A @ 12V), Number of Terminals 1, Switch Action Off - Mom On - SPST, Lamp Colour/s Not Applicable, Number of Poles 1, Switch Type Door Light, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Hella Door Light Switch Off Mom On SPST (Contacts Rated 2A @ 12V). Part number 4553 should be checked first. Listed voltage is 12. Listed output rating is 2. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 4553, 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 2 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.

Compatibility note: Confirm compatibility by matching Part No. 4553, the 12mm mounting diameter, the 12V rating, and the Off - Mom On - SPST switch action with the application you are replacing.

FAQ

What is the part number for this Hella door light switch?

The listed part number is 4553.

What voltage is this switch rated for?

It is rated at 12V.

What is the mounting size?

The mounting diameter is 12mm, with mounting through an opening and screw.

Is the switch illuminated?

No. The switch illumination is listed as non illuminated.

What is the switch action?

The switch action is Off - Mom On - SPST, with 2 positions and 1 pole.

What should I check before ordering a replacement?

Match the part number, 12mm mounting diameter, 12V rating, 1 terminal layout, and the Off - Mom On - SPST action to the existing application.