GMC Sierra 1500 transmission control module — Transmission Control, (LH core support), 8 speed transmission price snapshot
- Low
- $25
- Average
- $177
- High
- $326
Trim-specific price guide
GMC Sierra 1500 Transmission Control Module — Transmission Control, (LH core support), 8 speed transmission prices
Pricing for the Transmission Control, (LH core support), 8 speed transmission variant of the GMC Sierra 1500 transmission control module, aggregated from 98 salvage yard listings across 2 model years.
Price summary
A used GMC Sierra 1500 transmission control module (Transmission Control, (LH core support), 8 speed transmission) costs $25 to $326, with a median asking price of $199. Based on 98 priced salvage yard listings across the US, updated Sep 10, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$199
Grade B (good)$190
USD
Condition comparison
Price by part grade
Grade AClean / low wear$25–$24353 listings
Grade BStandard used$30–$32637 listings
Grade CVisible wearUpdating
Grade XUngraded$30–$2008 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $25–$243 | 53 | |
| Grade BStandard used | $30–$326 | 37 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $30–$200 | 8 |
Median by grade
Grade price comparison
Grade A$199
Grade B$190
Ungraded$50
Median asking price by seller-reported condition grade · $25–$326 overall range
Trim-specific context
How is the Transmission Control, (LH core support), 8 speed transmission priced differently?
This pricing covers the Transmission Control, (LH core support), 8 speed transmission variant of the GMC Sierra 1500 transmission control module, based on 98 priced listings across 2 model years (2024, 2025). Its $199 median is 42% above the GMC Sierra 1500 transmission control module overall median of $140.
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 Transmission Control, (LH core support), 8 speed transmission cost by year?
Other trims
Other GMC Sierra 1500 transmission control module variants
Air Bag, (on transmission tunnel)
1 yr$222$50 – $272Fuel Pump, (LH frame rail)
2 yrs$99$45 – $241Towing Control, (LH rear frame)
2 yrs$95$35 – $241Multifunction, (roof mounted)
4 yrs$222$41 – $241Memory, (under driver seat)
9 yrs$95$40 – $241Temperature, (RH under dash), ID 13506228
1 yr$91$25 – $271Temperature, (RH under dash), ID 13506229
1 yr$156$45 – $205Transmission, (LH firewall), (8 speed, opt M5U)
1 yr$179$60 – $383Body Control (BCM), (under steering column)
6 yrs$232$50 – $307Common questions
GMC Sierra 1500 transmission control module (Transmission Control, (LH core support), 8 speed transmission) FAQ
How much is a used GMC Sierra 1500 transmission control module (Transmission Control, (LH core support), 8 speed transmission)?
Based on 98 priced salvage-yard listings across 2 model years, a used GMC Sierra 1500 transmission control module in the Transmission Control, (LH core support), 8 speed transmission variant lists between $25 and $326, with a median asking price of $199.
Which GMC Sierra 1500 years use the Transmission Control, (LH core support), 8 speed transmission transmission control module?
The Transmission Control, (LH core support), 8 speed transmission variant appears in model years 2024, 2025. Prices and availability differ by year.
Is there a price difference between Transmission Control, (LH core support), 8 speed transmission condition grades?
Yes. Grade A has a median of $199, Grade B has a median of $190. Grade A parts are in excellent condition, B is good, and C is fair.