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2021 Subaru Outback Brake Light Bulbs

Check the engine, size and position shown for each product before ordering.

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Wagner BP921 Standard Miniature Brake Light Bulbs, 2 Pack

921 · rear brake lamp · replaceable T15/921 brake-light bulb on the cataloged rear-lamp configuration. Confirm the T15/921 marking and exact rear-lamp position before ordering.

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Fitment & product details

921 incandescent brake/tail replacement. Two clear T15/921 incandescent bulbs.

Confirm the exact year, model, brake/tail lamp position, bulb number printed on the removed bulb, package quantity, factory incandescent rear-lamp assembly, and current Amazon vehicle checker. Do not install in a sealed factory LED lamp assembly.

Full product details

Confirm your engine, trim and original part before ordering. Fitment disclaimer

Vehicle fitment, specifications & installation

What to verify

  • Brake/tail lamp position and bulb number
  • Replaceable incandescent socket versus sealed factory LED assembly
  • Package quantity and whether the rear turn signal or high-mount stop lamp is a separate light source

Installation guidance

Switch the exterior lights off and follow the owner’s procedure to remove the rear lamp or access panel. Replace matched left/right incandescent bulbs when practical, avoid touching the glass with bare fingers, reinstall the socket securely, and have another person confirm tail, brake, turn, and hazard operation before driving.

Other parts for this vehicle

Continue shopping researched categories for the same year, make, and model.

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Other model years & common questions

Nearby model years

Use the exact year page even when the same product family spans several years.

Brake Light Bulbs2014 Subaru Outback2 matched productsBrake Light Bulbs2013 Subaru Outback2 matched productsBrake Light Bulbs2012 Subaru Outback2 matched productsBrake Light Bulbs2011 Subaru Outback2 matched productsBrake Light Bulbs2010 Subaru Outback2 matched products

Frequently asked questions

What brake-light bulb is mapped to the 2021 Subaru Outback?

921 · rear brake lamp · replaceable T15/921 brake-light bulb on the cataloged rear-lamp configuration. Confirm the T15/921 marking and exact rear-lamp position before ordering. Verify the rear-lamp position and whether the selected trim instead uses a sealed factory LED assembly.

Can the same vehicle use both bulbs and factory LED brake lights?

Yes. Lighting equipment can vary by trim or option package. Use this page only for the saved replaceable-incandescent configuration; a sealed LED assembly requires assembly-specific service.

Does one brake-light bulb also operate the tail light or turn signal?

Sometimes. A dual-filament rear combination bulb can serve more than one function, while another vehicle may use separate bulbs. Follow the saved position note and the number printed on the removed bulb.

Should brake-light bulbs be replaced in pairs?

Matched left/right replacement is usually sensible because bulbs age together, but first check how many bulbs the rear assemblies use and how many are included in the Amazon package.