GMC Sierra 1500 transmission control module — Transmission, (LH firewall), (8 speed, opt M5U) price snapshot
- Low
- $35
- Average
- $182
- High
- $383
Trim-specific price guide
GMC Sierra 1500 Transmission Control Module — Transmission, (LH firewall), (8 speed, opt M5U) prices
Pricing for the Transmission, (LH firewall), (8 speed, opt M5U) variant of the GMC Sierra 1500 transmission control module, aggregated from 89 salvage yard listings across 2 model years.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
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.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedSep 23, 2026AS
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.
Price summary
A used GMC Sierra 1500 transmission control module (Transmission, (LH firewall), (8 speed, opt M5U)) costs $35 to $383, with a median asking price of $210. Based on 89 priced salvage yard listings across the US, updated Sep 23, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$210
Grade B (good)$328
Grade C (fair)$125
USD
Condition comparison
Price by part grade
Grade AClean / low wear$40–$35663 listings
Grade BStandard used$65–$38313 listings
Grade CVisible wear$125–$1251 listings
Grade XUngraded$35–$30012 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $40–$356 | 63 | |
| Grade BStandard used | $65–$383 | 13 | |
| Grade CVisible wear | $125–$125 | 1 | |
| Grade XUngraded | $35–$300 | 12 |
Median by grade
Grade price comparison
Grade A$210
Grade B$328
Grade C$125
Ungraded$75
Median asking price by seller-reported condition grade · $35–$383 overall range
Trim-specific context
How is the Transmission, (LH firewall), (8 speed, opt M5U) priced differently?
This pricing covers the Transmission, (LH firewall), (8 speed, opt M5U) variant of the GMC Sierra 1500 transmission control module, based on 89 priced listings across 2 model years (2015, 2016). Its $210 median is 68% above the GMC Sierra 1500 transmission control module overall median of $125.
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, (LH firewall), (8 speed, opt M5U) cost by year?
Other trims
Other GMC Sierra 1500 transmission control module variants
Air Bag, classic style (mirrors mount in window corner), (on transmission tunnel)
1 yr$51$40 – $192Air Bag, new style (mirrors mount on door skin), (RH rear floor)
1 yr$100$50 – $182Air Bag, (on transmission tunnel)
2 yrs$222$41 – $272Air Bag, (on transmission tunnel), ID 13507217
2 yrs$153$40 – $272Air Bag, (on transmission tunnel), ID 13507220
1 yr$120$41 – $346Air Bag, (on transmission tunnel), ID 13522335
1 yr$104$75 – $310Air Bag, (RH rear floor)
5 yrs$124$50 – $450Body Control (BCM), classic style (mirrors mount in window corner), (under steering column), ID 13508761
1 yr$171$45 – $176Body Control (BCM), classic style (mirrors mount in window corner), (under steering column), ID 13521450
1 yr$171$35 – $194Common questions
GMC Sierra 1500 transmission control module (Transmission, (LH firewall), (8 speed, opt M5U)) FAQ
How much is a used GMC Sierra 1500 transmission control module (Transmission, (LH firewall), (8 speed, opt M5U))?
Based on 89 priced salvage-yard listings across 2 model years, a used GMC Sierra 1500 transmission control module in the Transmission, (LH firewall), (8 speed, opt M5U) variant lists between $35 and $383, with a median asking price of $210.
Which GMC Sierra 1500 years use the Transmission, (LH firewall), (8 speed, opt M5U) transmission control module?
The Transmission, (LH firewall), (8 speed, opt M5U) variant appears in model years 2015, 2016. Prices and availability differ by year.
Is there a price difference between Transmission, (LH firewall), (8 speed, opt M5U) condition grades?
Yes. Grade A has a median of $210, Grade B has a median of $328, Grade C has a median of $125. Grade A parts are in excellent condition, B is good, and C is fair.