Tridon Stop Light Switch TBS033 M12 X 1 Dual Circuit

The Tridon Stop Light Switch, part number TBS033, is a vehicle switch supplied as each and listed with a two-year warranty. It uses an M12 x 1 thread, a 15 mm spanner size, and a dual circuit arrangement with normally open and normally closed operation.

This is a practical electrical switch for brake light control where the thread size and circuit type need to match the vehicle exactly. The key identifiers here are the Tridon brand, the TBS033 part number, and the M12 x 1 thread, which are the first details to check before ordering.

The switch is grouped under auto electrical accessories and fuses, breakers, relays, switches. If you are replacing an existing stop light switch, comparing the thread size, spanner size, and circuit configuration against the vehicle’s original component will help avoid unnecessary returns and installation delays.

Key Features

• Tridon stop light switch
• Part number TBS033
• M12 x 1 thread
• 15 mm spanner size
• Dual circuit: normally open and normally closed
• Supplied as each

Specifications

• Brand: Tridon
• Product type: Switch
• Description: Stop Light Switch
• Part number: TBS033
• Thread: M12 x 1
• Spanner size: 15 mm
• Circuit: Dual - Normally Open - Normally Closed
• Warranty: Two Years

Fitment guidance

• Fitment information provided includes Mercedes-Benz applications.
• Listed fitment families include Mercedes-Benz 124, Mercedes-Benz 190, and Mercedes-Benz S-Class.
• Sample applications shown include Mercedes-Benz 124 model years 1985, 1986, 1987, and 1988.
• The fitment data also includes Mercedes-Benz 190 model years 1982, 1983, 1984, 1985, and 1986.
• Confirm the existing switch thread, circuit type, and part number before fitting.

Application and Buying Notes

Before buying, check the original switch against the TBS033 details: M12 x 1 thread, 15 mm spanner size, and a dual circuit arrangement with normally open and normally closed operation. Those physical and electrical details matter because stop light switches are not interchangeable by appearance alone.

If your vehicle is one of the Mercedes-Benz applications listed, compare the model family and year carefully with the fitment notes. The supplied fitment includes Mercedes-Benz 124, Mercedes-Benz 190, and Mercedes-Benz S-Class, but the safest check is still the part number and the switch specifications on the vehicle already fitted.

The two-year warranty applies to the supplied part, but it does not replace fitment checking. Make sure the thread pitch, operating circuit, and mounting dimensions are the same as your existing switch before installation, especially if the vehicle has been modified or had prior repairs in the brake light circuit.

As a stop light switch, this part sits in the brake light control circuit, so matching the electrical function is as important as matching the thread. If the vehicle uses a different switching arrangement, the lights may not operate as intended even if the thread appears to suit.

For the most reliable result, compare the old switch to the TBS033 marking, verify the M12 x 1 thread, and confirm the 15 mm spanner size suits the installation space. Those checks are the best way to confirm you have the right replacement before the vehicle is apart.

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 TBS033 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 Two Years, Product Group 1 AUTO ELEC ACCESSORIES, Part No. TBS033, Brand TRIDON, Description Tridon Stop Light Switch, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Tridon Stop Light Switch. Part number TBS033 should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number TBS033, 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.

Available application references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1985, MERCEDES-BENZ 124 1986, MERCEDES-BENZ 124 1987. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Please confirm fitment by matching part number TBS033, M12 x 1 thread, 15 mm spanner size, and the vehicle application details before purchase or installation.

FAQ

What is the part number for this stop light switch?

The part number is TBS033. For this listing, part number TBS033 is the main reference point. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1985, MERCEDES-BENZ 124 1986. These details should still be checked against the original unit before ordering.

What thread does this switch use?

It uses an M12 x 1 thread. For this listing, part number TBS033 is the main reference point. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1985, MERCEDES-BENZ 124 1986. These details should still be checked against the original unit before ordering.

What type of circuit does it have?

It is a dual circuit switch with normally open and normally closed operation. For this listing, part number TBS033 is the main reference point. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1985, MERCEDES-BENZ 124 1986. These details should still be checked against the original unit before ordering.

Which vehicle applications are listed?

Listed fitment includes Mercedes-Benz 124, Mercedes-Benz 190, and Mercedes-Benz S-Class applications. For this listing, part number TBS033 is the main reference point. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1985, MERCEDES-BENZ 124 1986. These details should still be checked against the original unit before ordering.

What is the spanner size?

The listed spanner size is 15 mm. For this listing, part number TBS033 is the main reference point. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1985, MERCEDES-BENZ 124 1986. These details should still be checked against the original unit before ordering.

What warranty is supplied with this part?

It carries a two-year warranty. For this listing, part number TBS033 is the main reference point. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1985, MERCEDES-BENZ 124 1986. These details should still be checked against the original unit before ordering.