Used GMC Sierra 1500 transmission – AT, 4x4, 5.3L, 8 speed, opt M5X

Trim-specific price guide

GMC Sierra 1500 Transmission — AT, 4x4, 5.3L, 8 speed, opt M5X prices

Pricing for the AT, 4x4, 5.3L, 8 speed, opt M5X variant of the GMC Sierra 1500 transmission, aggregated from 56 salvage yard listings across 2 model years.

2017 GMC Sierra 1500 · AT, 4x4, 5.3L, 8 speed, opt M5X

$3,000

median asking price

15 priced listings · $2,100–$4,663

Price summary

A used GMC Sierra 1500 transmission (AT, 4x4, 5.3L, 8 speed, opt M5X) costs $2,100 to $7,635, with a median asking price of $3,170. Based on 56 priced salvage yard listings across the US, updated Sep 9, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$3,148
Grade B (good)$2,898

GMC Sierra 1500 transmission — AT, 4x4, 5.3L, 8 speed, opt M5X price snapshot

USD
Low
$2,100
Average
$3,719
High
$7,635
56 priced listings across 2 model years· How we price·

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Reporting price for GMC Sierra 1500 Transmission (AT, 4x4, 5.3L, 8 speed, opt M5X)

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Condition comparison

Price by part grade

Grade AClean / low wear$2,100–$3,81024 listings
Grade BStandard used$2,348–$3,1608 listings
Grade CVisible wearUpdating
Grade XUngraded$2,199–$7,63524 listings

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $2,100–$7,635 overall range

Trim-specific context

How is the AT, 4x4, 5.3L, 8 speed, opt M5X priced differently?

This pricing covers the AT, 4x4, 5.3L, 8 speed, opt M5X variant of the GMC Sierra 1500 transmission, based on 56 priced listings across 2 model years (2017, 2018). Its $3,170 median is 25% above the GMC Sierra 1500 transmission overall median of $2,528.

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

Price by model year

What does a AT, 4x4, 5.3L, 8 speed, opt M5X cost by year?

201715 listings$3,000$2,100 – $4,663201841 listings$3,170$2,348 – $7,635

Other trims

Other GMC Sierra 1500 transmission variants

Full Sierra 1500 guide

AT, 4x2, 6.2L, (8 speed transmission, opt M5U)

1 yr$2,688$2,299 – $3,910

AT, 4x4, 6.2L, (8 speed transmission, opt M5U)

1 yr$2,200$1,800 – $3,978

AT, 4x2, 5.3L, 6 speed (opt MYC), tow package (opt NHT)

2 yrs$2,500$1,950 – $3,225

AT, 4x2, 5.3L, 6 speed (opt MYC), w/o tow package

2 yrs$2,400$790 – $3,662

AT, 4x2, 5.3L, 8 speed, opt M5U, ID 5U0L

1 yr$2,688$2,338 – $3,910

AT, 4x2, 5.3L, 8 speed, opt M5U, ID 5UFL

1 yr$2,760$2,210 – $3,910

AT, 4x2, 5.3L, 8 speed, opt M5U, ID 5UHL

1 yr$2,760$2,210 – $3,910

AT, 4x2, 5.3L, 8 speed, opt M5U, ID 6U2L

1 yr$3,910$2,650 – $4,145

AT, 4x2, 5.3L, 8 speed, opt M5U, ID 6U7L

1 yr$3,910$2,199 – $5,639

Common questions

GMC Sierra 1500 transmission (AT, 4x4, 5.3L, 8 speed, opt M5X) FAQ

How much is a used GMC Sierra 1500 transmission (AT, 4x4, 5.3L, 8 speed, opt M5X)?

Based on 56 priced salvage-yard listings across 2 model years, a used GMC Sierra 1500 transmission in the AT, 4x4, 5.3L, 8 speed, opt M5X variant lists between $2,100 and $7,635, with a median asking price of $3,170.

Which GMC Sierra 1500 years use the AT, 4x4, 5.3L, 8 speed, opt M5X transmission?

The AT, 4x4, 5.3L, 8 speed, opt M5X variant appears in model years 2017, 2018. Prices and availability differ by year.

Is there a price difference between AT, 4x4, 5.3L, 8 speed, opt M5X condition grades?

Yes. Grade A has a median of $3,148, Grade B has a median of $2,898. Grade A parts are in excellent condition, B is good, and C is fair.