Used 2021 GMC Terrain headlight assembly – LED (opt T4L), RH

Year & trim-specific price guide

Used 2021 GMC Terrain Headlight Assembly — LED (opt T4L), RH prices

Trim-specific pricing for the LED (opt T4L), RH variant of the 2021 GMC Terrain headlight assembly, built from 40 real salvage yard listings with condition grade detail.
SKWritten bySaurabh Kumar · Co-Founder & CTO
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedSep 19, 2026

2021 GMC Terrain · LED (opt T4L), RH

$1,000

median asking price

40 priced listings · $75–$1,355

Price summary

A used 2021 GMC Terrain headlight assembly (LED (opt T4L), RH) costs $75 to $1,355, with a median asking price of $1,000. Based on 40 priced salvage yard listings across the US, updated Sep 19, 2026. Prices exclude shipping, core charges, and installation.

2021 GMC Terrain headlight assembly — LED (opt T4L), RH price snapshot

USD
Low
$75
Average
$870
High
$1,355
40 priced listings used · last updated Sep 19, 2026· How we price·

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Trim-specific context

How does the LED (opt T4L), RH compare?

This pricing covers the LED (opt T4L), RH variant of the 2021 GMC Terrain headlight assembly, based on 40 priced listings. Its $1,000 median is 38% above the 2021 GMC Terrain headlight assembly overall median of $725.

There are 3 other headlight assembly variants available for the 2021 GMC Terrain.

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

Same trim, other years

LED (opt T4L), RH in other model years

All years
202016 listings$950$500 – $1,300201930 listings$975$500 – $1,509201819 listings$1,080$75 – $1,494

Same year, other trims

What other 2021 GMC Terrain headlight assembly variants are available?

HID (opt T4F), LH

38 listings$670$185 – $1,140

HID (opt T4F), RH

38 listings$611$85 – $1,110

LED (opt T4L), LH

36 listings$748$75 – $1,152

Back to full guide

2021 GMC Terrain headlight assembly — all trims

View 2021 guide

Common questions

2021 GMC Terrain headlight assembly (LED (opt T4L), RH) FAQ

How much is a used 2021 GMC Terrain headlight assembly (LED (opt T4L), RH)?

Based on 40 priced salvage-yard listings, a used 2021 GMC Terrain headlight assembly in the LED (opt T4L), RH variant lists between $75 and $1,355, with a median asking price of $1,000.

Which years use the LED (opt T4L), RH headlight assembly?

The LED (opt T4L), RH variant appears in model years 2018, 2019, 2020, 2021. Prices and availability may differ by year.

2021 GMC Terrain Headlight Assembly · LED (opt T4L), RH Prices | Part Price Guide