Year & trim-specific price guide

Used 2018 GMC Sierra 1500 Engine — 5.3L, opt L83 (VIN C, 8th digit) prices

Trim-specific pricing for the 5.3L, opt L83 (VIN C, 8th digit) variant of the 2018 GMC Sierra 1500 engine, built from 39 real salvage yard listings with condition grade detail.

SKWritten bySaurabh Kumar · Co-Founder & CTO

Saurabh Kumar

Co-Founder & CTO, Part Price Guide

Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.

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ASReviewed byAmbika Sharma · Co-Founder & COO

Ambika Sharma

Co-Founder & COO, Part Price Guide

12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.

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Last updatedAug 18, 2026

2018 GMC Sierra 1500 · 5.3L, opt L83 (VIN C, 8th digit)

$3,000

median asking price

39 priced listings · $1,943–$3,895

Price summary

A used 2018 GMC Sierra 1500 engine (5.3L, opt L83 (VIN C, 8th digit)) costs $1,943 to $3,895, with a median asking price of $3,000. Based on 39 priced salvage yard listings across the US, updated Aug 18, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$3,200

Grade B (good)$2,602

2018 GMC Sierra 1500 engine — 5.3L, opt L83 (VIN C, 8th digit) price snapshot

USD

Low: $1,943
Average: $3,044
High: $3,895

39 priced listings used · last updated Aug 18, 2026· How we price·

Condition comparison

Price by part grade

Grade AClean / low wear$1,975–$3,80025 listings

Grade BStandard used$1,943–$3,8959 listings

Grade XUngraded$3,000–$3,8615 listings

Grade	Price range	Listings
Grade AClean / low wear	$1,975–$3,800	25
Grade BStandard used	$1,943–$3,895	9
Grade XUngraded	$3,000–$3,861	5

Median by grade

Grade price comparison

Grade A$3,200

Grade B$2,602

Ungraded$3,300

Median asking price by seller-reported condition grade · $1,943–$3,895 overall range

Trim-specific context

How does the 5.3L, opt L83 (VIN C, 8th digit) compare?

This pricing covers the 5.3L, opt L83 (VIN C, 8th digit) variant of the 2018 GMC Sierra 1500 engine, based on 39 priced listings. Its $3,000 median is 10% below the 2018 GMC Sierra 1500 engine overall median of $3,320.

There are 3 other engine variants available for the 2018 GMC Sierra 1500.

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

Same trim, other years

5.3L, opt L83 (VIN C, 8th digit) in other model years

All years

201734 listings$2,725$1,725 – $4,735 201649 listings$2,216$1,844 – $4,619

Same year, other trims

What other 2018 GMC Sierra 1500 engine variants are available?

Back to full guide

2018 GMC Sierra 1500 engine — all trims

View 2018 guide

Common questions

2018 GMC Sierra 1500 engine (5.3L, opt L83 (VIN C, 8th digit)) FAQ

How much is a used 2018 GMC Sierra 1500 engine (5.3L, opt L83 (VIN C, 8th digit))?

Based on 39 priced salvage-yard listings, a used 2018 GMC Sierra 1500 engine in the 5.3L, opt L83 (VIN C, 8th digit) variant lists between $1,943 and $3,895, with a median asking price of $3,000.

Which years use the 5.3L, opt L83 (VIN C, 8th digit) engine?

The 5.3L, opt L83 (VIN C, 8th digit) variant appears in model years 2016, 2017, 2018. Prices and availability may differ by year.