Tridon Stop Light Switch M12 X 1.5 Dual Circuit Part No. TBS049

The Tridon Stop Light Switch is a switch-type electrical component supplied as each, with part number TBS049 and a two-year warranty. It is listed under auto elec accessories and fuses, breakers, relays and switches, which is useful context when matching it to the correct brake lamp circuit arrangement.

Key physical and electrical identifiers are provided: M12 x 1.5 thread, dual circuit operation, and normally open / normally closed contacts. Those details matter when you are replacing a stop light switch because the thread size and switching style need to line up with the vehicle’s brake pedal or hydraulic switch application.

The brand is Tridon, and the product is described simply as a Tridon Stop Light Switch. If you are comparing options, the part number TBS049 is the clearest reference to use alongside the thread and circuit details before ordering.

Fitment information is present for selected Audi and Volkswagen applications, including Audi A4, Audi A6, Audi A8, Audi Allroad and Volkswagen Passat references across multiple model years. As always with a stop light switch, confirm the exact application against the part number and the vehicle’s original switch specification before purchase.

Key Features

• Tridon stop light switch
• Part No. TBS049
• M12 x 1.5 thread
• Dual circuit operation
• Normally open / normally closed contacts
• Supplied each

Specifications

• Brand: Tridon
• Product type: Switch
• Description: Tridon Stop Light Switch
• Unit of measure: Each
• Part number: TBS049
• Thread: M12 x 1.5
• Circuit: Dual - Normally Open - Normally Closed
• Warranty: Two Years

Fitment references supplied

• Audi A4 – multiple model years listed, including 1995 to 2001 in the supplied preview
• Audi A6 – multiple model years listed, including 1994 to 1996 in the supplied preview
• Audi A8 – listed in the supplied fitment data
• Audi Allroad – listed in the supplied fitment data
• Volkswagen Passat – multiple model years listed, including 1996 to 2005 in the supplied preview

Application and Buying Notes

When replacing a stop light switch, the safest checks are the part number, thread size, and circuit type. This unit is identified as TBS049 with an M12 x 1.5 thread and a dual circuit arrangement using normally open and normally closed contacts, so those details should be matched against the vehicle’s original switch before fitting.

The fitment data supplied includes Audi and Volkswagen references, but the safest buying decision still depends on confirming the exact vehicle application. A stop light switch can look similar across models, yet small differences in thread pitch, contact logic, or pedal switch design can prevent correct operation if the wrong version is fitted.

If your vehicle uses a brake light circuit that relies on dual contact switching, the normally open / normally closed specification is one of the most important identifiers here. That specification is more useful than appearance alone, especially on older European applications where several switch variants may exist across the same model range.

The unit is supplied each, which suits a direct replacement approach rather than a kit-based repair. With electrical switches, it is also worth checking the connector style, physical thread engagement, and whether the existing switch is hydraulic or pedal-mounted in your application before you place an order.

A two-year warranty is listed for this Tridon stop light switch. Warranty coverage does not replace fitment checking, so the part number TBS049 and the M12 x 1.5 thread remain the main reference points for confirming the right component for the vehicle.

For workshop use or at-home replacement, keep the original switch until the new one is checked against it. Matching the thread, switching style, and application details before installation helps reduce the chance of an avoidable return or a brake light fault after 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 TBS049 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. TBS049, Brand TRIDON, Description Tridon Stop Light Switch, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Tridon Stop Light Switch. Part number TBS049 should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number TBS049, 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 AUDI A4, AUDI A4 1995, AUDI A4 1996, AUDI A4 1997, VOLKSWAGEN PASSAT, VOLKSWAGEN PASSAT 1996. 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: Confirm compatibility by matching part number TBS049, M12 x 1.5 thread, and the dual normally open / normally closed circuit arrangement to the vehicle’s original stop light switch and application details before ordering.

FAQ

What is the part number for this stop light switch?

The part number listed is TBS049.

What thread size does this switch use?

It uses an M12 x 1.5 thread.

Is this a single or dual circuit switch?

It is listed as a dual circuit switch with normally open and normally closed contacts.

What vehicles are shown in the fitment information?

The supplied fitment references include Audi A4, Audi A6, Audi A8, Audi Allroad and Volkswagen Passat applications across multiple model years.

How is the item supplied?

It is supplied each, meaning one switch per order unit.

What warranty is listed?

A two-year warranty is listed for this Tridon stop light switch.