Depo 316-1159LMUCM2 Headlight Assembly - Left
OE Quality 60-Day Returns
Depo

Depo 316-1159LMUCM2 Headlight Assembly - Left

Brand Depo 316-1159LMUCM2
Position Left
Fits Mazda · 2 vehicles

Headlight assembly. Direct replacement for a clean, factory-style lighting upgrade.

$867.63Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $867.63
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Left Headlight Assembly for Mazda 3

This Depo headlight assembly is a direct-fit exterior lighting replacement for the left side of select Mazda 3 models. It is built for 2017-2018 Mazda 3 applications and matches OEM reference BBNT51041 for the listed fitment.

  • Brand: Depo
  • Part number: 316-1159LMUCM2
  • Headlight assembly for the left side
  • Fits 2017-2018 Mazda 3, left
  • OE reference: BBNT51041

Fitment Details

Compatible with 2017-2018 Mazda 3, left. This fitment covers the listed vehicle years only, making it a focused replacement option for drivers searching for a Mazda 3 left headlight assembly or Depo 316-1159LMUCM2.

Product Overview

Use this headlight assembly when replacing a damaged, cloudy, or non-functioning left headlamp on a 2017-2018 Mazda 3. The Depo 316-1159LMUCM2 is cataloged as an exterior lighting component and is identified by OEM number BBNT51041 for the specified application. If you are sourcing a Mazda 3 headlight assembly by part number, 316-1159LMUCM2 provides a clear match for the left-side fitment shown here.

What It Helps Address

  • Broken or cracked left headlight housing
  • Reduced nighttime visibility from a failing lamp assembly
  • Moisture intrusion caused by a compromised headlight unit
  • Restoring proper front-end lighting after collision damage
  • Replacing a worn or discolored Mazda 3 headlight assembly

Installation Notes

Verify the vehicle year, model, and left-side position before installation. Compare the existing unit to the OEM reference BBNT51041 and confirm connector and mounting-point match before final assembly. For best results, inspect adjacent lighting components and aim the headlamp after installation if required by the vehicle.

Quality Assurance

Depo manufactures replacement lighting components for vehicle-specific applications, and this part is cataloged to the listed OEM reference for fitment verification. Part number 316-1159LMUCM2 should be matched to the exact 2017-2018 Mazda 3 left-side application before purchase.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypePositionNotes
2018Mazda3SSedanLeftOEM: BBNT51041
2017Mazda3SSedanLeftOEM: BBNT51041