Bosch Flasher Unit 12V 3 Pin Electronic P123

Bosch Flasher Unit 12V 3 Pin P123 is an electronic flasher unit for 12 volt automotive electrical systems. It has 3 terminals, a maximum rating of 89W, and is supplied as each. If you are replacing a flasher on a vehicle that uses a 3 pin arrangement, the part number P123 and the Bosch description are the key identifiers to check before ordering.

This unit is listed as electronic rather than thermal, which is important when matching an existing relay or flasher setup. The compact unit weighs .04kg and sits within the auto electrical accessories range, under fuses, breakers, relays and switches. Those details matter when comparing the replacement to the unit already fitted in the vehicle.

The product is identified as Bosch Flasher Unit 12V 3 Pin, with one year warranty cover and high reliability and long life noted among the features. If you are sourcing a replacement for a classic or older vehicle application, the terminal count, voltage and part number should be confirmed against the existing component, socket and wiring before purchase.

Key Features

• Electronic flasher unit
• 3 terminal design
• 12 volt application
• 89W maximum rating
• High reliability
• Long life

Specifications

• Brand: Bosch
• Part No.: P123
• Product type: Flasher Unit
• Flasher type: Electronic
• Voltage: 12V
• Number of terminals: 3
• Watts: 89W maximum
• Unit of measure: Each

Fitment guidance

• Fitment is linked to the Bosch P123 flasher unit and a 3 pin, 12V electronic application.
• Provided application references include Holden Gemini and Toyota Corolla.
• Holden Gemini applications are shown across model years from 1975 to 1985.
• Toyota Corolla applications are shown across model years from 1967 to 1977.
• No further vehicle details should be assumed beyond the supplied application references.

Application and Buying Notes

Before buying, match the existing flasher by part number P123, terminal count and operating voltage. This unit is a 12V electronic flasher with 3 terminals and an 89W maximum rating, so it needs to align with the vehicle’s electrical setup and the lamp load it is expected to handle.

If you are replacing a failed flasher, compare the old unit physically as well as on paper. The 3 pin layout, the electronic flasher type and the Bosch identification are the most useful checkpoints here. A different terminal arrangement or flasher style can prevent the replacement from plugging in or operating correctly.

The supplied fitment references point to Holden Gemini and Toyota Corolla applications, but the safest approach is still to confirm the exact application details on the vehicle. Model year ranges are broad in the supplied data, so part number matching and a check of the existing socket, wiring and flasher style remain important.

This unit is light at .04kg and is supplied as each, which makes it straightforward to replace as an individual component. The one year warranty provides a basic warranty period, but it does not replace the need to verify compatibility first. The key buying decision points are voltage, terminal count, flasher type and part number.

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 P123 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 FLASHER UNIT, Unit of Measure EACH, Warranty One Year, Number of Terminals 3, Flasher Type Electronic, Product Group 2 FUSES BREAKERS RELAYS SWITCHES, Part No. P123, Brand BOSCH, Description Bosch Flasher Unit 12v 3 Pin.

Additional published details for cross-checking include Watts 89W (Max), Voltage 12, Weight .04kg, Product Group 1 AUTO ELEC ACCESSORIES.

Bosch Flasher Unit 12v 3 Pin. Part number P123 should be checked first. Listed voltage is 12. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number P123, 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 flasher unit in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include HOLDEN GEMINI, HOLDEN GEMINI 1975, HOLDEN GEMINI 1976, HOLDEN GEMINI 1977, TOYOTA COROLLA, TOYOTA COROLLA 1967. 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 using the Bosch P123 part number, 12V rating, 3 terminal layout and the vehicle’s application details before ordering. The listed Holden Gemini and Toyota Corolla references should be checked against the exact vehicle and existing flasher unit.

FAQ

What type of flasher unit is this?

It is a Bosch electronic flasher unit with 3 terminals and a 12V rating. For this listing, part number P123 is the main reference point. Listed voltage is 12. Published fitment references include HOLDEN GEMINI, HOLDEN GEMINI 1975, HOLDEN GEMINI 1976. These details should still be checked against the original unit before ordering.

What is the part number?

The part number listed is P123. For this listing, part number P123 is the main reference point. Listed voltage is 12. Published fitment references include HOLDEN GEMINI, HOLDEN GEMINI 1975, HOLDEN GEMINI 1976. These details should still be checked against the original unit before ordering.

How many terminals does it have?

It has 3 terminals. For this listing, part number P123 is the main reference point. Listed voltage is 12. Published fitment references include HOLDEN GEMINI, HOLDEN GEMINI 1975, HOLDEN GEMINI 1976. These details should still be checked against the original unit before ordering.

What is the maximum wattage?

The maximum wattage listed is 89W. For this listing, part number P123 is the main reference point. Listed voltage is 12. Published fitment references include HOLDEN GEMINI, HOLDEN GEMINI 1975, HOLDEN GEMINI 1976. These details should still be checked against the original unit before ordering.

Which vehicles are referenced in the fitment data?

The supplied fitment references include Holden Gemini and Toyota Corolla applications, with model years shown for Holden Gemini from 1975 to 1985 and Toyota Corolla from 1967 to 1977. For this listing, part number P123 is the main reference point. Listed voltage is 12. Published fitment references include HOLDEN GEMINI, HOLDEN GEMINI 1975, HOLDEN GEMINI 1976. These details should still be checked against the original unit before ordering.

What warranty is provided?

The unit is listed with a one year warranty. For this listing, part number P123 is the main reference point. Listed voltage is 12. Published fitment references include HOLDEN GEMINI, HOLDEN GEMINI 1975, HOLDEN GEMINI 1976. These details should still be checked against the original unit before ordering.