Used 2021 GMC Yukon headlight assembly – AT4, LH

Year & trim-specific price guide

Used 2021 GMC Yukon Headlight Assembly — AT4, LH prices

Trim-specific pricing for the AT4, LH variant of the 2021 GMC Yukon headlight assembly, built from 16 real salvage yard listings with condition grade detail.

2021 GMC Yukon · AT4, LH

$625

median asking price

16 priced listings · $250–$1,100

Price summary

A used 2021 GMC Yukon headlight assembly (AT4, LH) costs $250 to $1,100, with a median asking price of $625. Based on 16 priced salvage yard listings across the US, updated Aug 8, 2026. Prices exclude shipping, core charges, and installation.

2021 GMC Yukon headlight assembly — AT4, LH price snapshot

USD
Low
$250
Average
$666
High
$1,100
16 priced listings used · last updated Aug 8, 2026· How we price·

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Reporting price for 2021 GMC Yukon Headlight Assembly (AT4, LH)

Reason

Condition comparison

Price by part grade

Grade AClean / low wearUpdating
Grade BStandard usedUpdating
Grade CVisible wearUpdating
Grade XUngraded$250–$1,10016 listings

Trim-specific context

How does the AT4, LH compare?

This pricing covers the AT4, LH variant of the 2021 GMC Yukon headlight assembly, based on 16 priced listings. Its $625 median is 1% below the 2021 GMC Yukon headlight assembly overall median of $631.

There are 7 other headlight assembly variants available for the 2021 GMC Yukon.

Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.

Same trim, other years

AT4, LH in other model years

All years
202445 listings$750$100 – $1,000202339 listings$750$399 – $1,050202239 listings$750$275 – $1,050

Same year, other trims

What other 2021 GMC Yukon headlight assembly variants are available?

SLE, LH

24 listings$650$150 – $1,025

SLT, LH

24 listings$650$150 – $1,025

AT4, RH

18 listings$650$200 – $750

Denali, RH

18 listings$650$200 – $750

Denali, LH

16 listings$625$250 – $1,100

SLE, RH

15 listings$475$250 – $830

SLT, RH

15 listings$475$250 – $830

Back to full guide

2021 GMC Yukon headlight assembly — all trims

View 2021 guide

Common questions

2021 GMC Yukon headlight assembly (AT4, LH) FAQ

How much is a used 2021 GMC Yukon headlight assembly (AT4, LH)?

Based on 16 priced salvage-yard listings, a used 2021 GMC Yukon headlight assembly in the AT4, LH variant lists between $250 and $1,100, with a median asking price of $625.

Which years use the AT4, LH headlight assembly?

The AT4, LH variant appears in model years 2021, 2022, 2023, 2024. Prices and availability may differ by year.