Mazda MX-5
Miata Side Turn Signal Light Bulb Replacement Guide
How to change a burnt out front side turn
signal light bulb on a 4th generation 2016 to 2021 Mazda MX-5 Miata.
 2018 Miata Side Signal |
 Insert Pry Bar Tool |
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This automotive maintenance tutorial was specifically written to assist owners of the 4th generation ND (2016, 2017, 2018, 2019, 2020 & 2021) Mazda MX-5 Miata in changing a burnt out side turn signal indicator light bulb located on the front quarter panel. It is also known as the fender blinker, repeater lamp or "scuttle". Owners of other Mazda vehicles such as the Mazda2 (Demio), Mazda3 (Axela), Mazda5, Mazda6 (Atenza), CX-3, CX-5, CX-7, CX-9, RX-8 and MPV may also find these DIY instructions to be helpful. The OEM sealed light housing with an integrated light bulb is part number Mazda N243-51120 (also known as N243 51120 or N24351120). The only tool needed to remove and replace the light housing is a plastic pry bar tool. |
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 Gently Pry Out Housing |
 Gently Release Clip |
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Insert the blade of the plastic pry bar tool in
between the front edge of the light housing and the painted metal quarter
panel. Very gently push back and pry out the front edge of the light housing. Try to avoid using excessive force. The light housing should pop out relatively easily. |
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 Light Housing Removed |
 Push In Release Tab |
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Push in the release tab on the black plastic
electrical connector before sliding it straight off the light housing. Avoid stressing or pulling on the electrical connector or the wires. |
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 Disconnect Power Plug |
 Light Housing Disconnected |
| The OEM light housing was marked with the part numbers K2442 GP28 and N243 51120 (also known as N24351120 or N243-51120). | |
 Sealed OEM Unit |
 Mazda K2442 GP28 |
| The side turn
signal is a sealed unit with an integrated bulb. If the bulb is burnt out, the entire assembly must be replaced. |
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 N243 51120 |
 Push In Electrical Connector |
| Push the electrical connector straight on to the base of a new Mazda N243-51120 light housing. | |
 Line Up With Opening |
 Gently Pop In Housing |
| Line up the light
housing with the opening in the front quarter panel. Re-insert the front edge of the light housing into the opening first. |
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 Retaining Clip Secured |
 Test New Light Bulb |
| Then gently snap in
the retaining clip on the rear edge of the light housing. To test the new side turn signal light bulb, activate the hazard signals. Be sure to record the bulb change in your vehicle's service records. For more,
check out all of my
2016-2021 Mazda MX-5 Miata DIY Repair & Maintenance Guides. |
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