Tridon Stop Light Switch TBS128 M10 X 1.25 Dual Circuit

The Tridon Stop Light Switch, part number TBS128, is a switch sold each and supplied under the Tridon brand. It is listed with a 14mm spanner size, M10 x 1.25 thread, and a dual circuit arrangement with normally open and normally closed operation.

This style of stop light switch is used where the brake lamp circuit needs a direct switch signal. The dual circuit detail is important because it indicates two switching states in the one unit, so matching the application and terminal arrangement matters before installation.

A two year warranty is listed for this part. If you are replacing a stop light switch, check the part number TBS128, the thread size, and the circuit type against the original component before ordering.

Key Features

• Tridon stop light switch
• Part number: TBS128
• 14mm spanner size
• M10 x 1.25 thread
• Dual circuit operation
• Normally open and normally closed circuit

Specifications

• Brand: Tridon
• Product type: Switch
• Description: Tridon Stop Light Switch
• Part No.: TBS128
• Thread: M10 x 1.25
• Spanner: 14mm
• Circuit: Dual - Normally Open - Normally Closed
• Unit of measure: Each

Fitment guidance

• Fitment data supplied references Hyundai Elantra, Hyundai i30, Kia Cerato, and Kia Cerato Koup applications.
• Sample applications listed include Hyundai Elantra 2006 to 2011 and Hyundai i30 2007 to 2010.
• Sample applications listed include Kia Cerato 2009 to 2013 and Kia Cerato Koup 2009 to 2013.
• Use the part number TBS128, thread size M10 x 1.25, and circuit type to confirm the correct replacement before purchase.

Application and Buying Notes

Before ordering, compare the original switch with TBS128 and confirm the M10 x 1.25 thread and 14mm spanner size. Those are practical checks for a stop light switch, especially where the existing unit has been removed and the physical thread and hex size are the easiest way to confirm the match.

The dual circuit arrangement is listed as normally open and normally closed, so it is worth checking the vehicle’s original switch specification rather than relying on appearance alone. A stop light switch can look similar to other electrical switches, but the circuit design is what determines whether it operates correctly in the intended application.

Fitment references supplied for this part point to selected Hyundai and Kia applications, including Elantra, i30, Cerato, and Cerato Koup variants across the years shown. That is useful guidance, but the safest approach is to match the part number TBS128 against the original part and confirm the application details on the vehicle before fitting.

If the switch is being replaced because of brake light faults, always check the rest of the circuit as well. A stop light switch is only one part of the system, and correct operation still depends on sound wiring, connectors, and the vehicle’s brake light circuit being in good condition.

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 TBS128 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. TBS128, Brand TRIDON, Description Tridon Stop Light Switch, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Tridon Stop Light Switch. Part number TBS128 should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number TBS128, 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 HYUNDAI ELANTRA, HYUNDAI ELANTRA 2006, HYUNDAI ELANTRA 2007, HYUNDAI ELANTRA 2008, KIA CERATO, KIA CERATO 2009. 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.

The listed warranty is Two Years. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by matching part number TBS128, thread size M10 x 1.25, 14mm spanner size, and the dual normally open/normally closed circuit against the vehicle’s original switch and application details before buying.

FAQ

What is the part number for this stop light switch?

The part number listed is TBS128. For this listing, part number TBS128 is the main reference point. Published fitment references include HYUNDAI ELANTRA, HYUNDAI ELANTRA 2006, HYUNDAI ELANTRA 2007. These details should still be checked against the original unit before ordering.

What thread size does this switch use?

The listed thread size is M10 x 1.25. For this listing, part number TBS128 is the main reference point. Published fitment references include HYUNDAI ELANTRA, HYUNDAI ELANTRA 2006, HYUNDAI ELANTRA 2007. These details should still be checked against the original unit before ordering.

What spanner size is required?

The listed spanner size is 14mm. For this listing, part number TBS128 is the main reference point. Published fitment references include HYUNDAI ELANTRA, HYUNDAI ELANTRA 2006, HYUNDAI ELANTRA 2007. These details should still be checked against the original unit before ordering.

What type of circuit does it have?

It is listed as a dual circuit switch with normally open and normally closed operation. For this listing, part number TBS128 is the main reference point. Published fitment references include HYUNDAI ELANTRA, HYUNDAI ELANTRA 2006, HYUNDAI ELANTRA 2007. These details should still be checked against the original unit before ordering.

Which vehicles are referenced in the fitment data?

The supplied fitment references Hyundai Elantra, Hyundai i30, Kia Cerato, and Kia Cerato Koup applications, with sample years shown across 2006 to 2013 depending on model. For this listing, part number TBS128 is the main reference point. Published fitment references include HYUNDAI ELANTRA, HYUNDAI ELANTRA 2006, HYUNDAI ELANTRA 2007. These details should still be checked against the original unit before ordering.

What warranty is listed?

A two year warranty is listed for this part. For this listing, part number TBS128 is the main reference point. Published fitment references include HYUNDAI ELANTRA, HYUNDAI ELANTRA 2006, HYUNDAI ELANTRA 2007. These details should still be checked against the original unit before ordering.