Used 2021 Chevy Tahoe transmission control module – Network Gateway, (LH firewall)

Year & trim-specific price guide

Used 2021 Chevy Tahoe Transmission Control Module — Network Gateway, (LH firewall) prices

Trim-specific pricing for the Network Gateway, (LH firewall) variant of the 2021 Chevy Tahoe transmission control module, built from 11 real salvage yard listings with condition grade detail.

2021 Chevy Tahoe · Network Gateway, (LH firewall)

$125

median asking price

11 priced listings · $85–$145

Price summary

A used 2021 Chevy Tahoe transmission control module (Network Gateway, (LH firewall)) costs $85 to $145, with a median asking price of $125. Based on 11 priced salvage yard listings across the US, updated Aug 23, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$125
Grade B (good)$145

2021 Chevy Tahoe transmission control module — Network Gateway, (LH firewall) price snapshot

USD
Low
$85
Average
$116
High
$145
11 priced listings used · last updated Aug 23, 2026· How we price·

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Reporting price for 2021 Chevy Tahoe Transmission Control Module (Network Gateway, (LH firewall))

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Condition comparison

Price by part grade

Grade AClean / low wear$85–$1259 listings
Grade BStandard used$91–$1452 listings
Grade CVisible wearUpdating
Grade XUngradedUpdating

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $85–$145 overall range

Trim-specific context

How does the Network Gateway, (LH firewall) compare?

This pricing covers the Network Gateway, (LH firewall) variant of the 2021 Chevy Tahoe transmission control module, based on 11 priced listings. Its $125 median is 25% above the 2021 Chevy Tahoe transmission control module overall median of $100.

There are 27 other transmission control module variants available for the 2021 Chevy Tahoe.

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

Same trim, other years

Network Gateway, (LH firewall) in other model years

All years
202544 listings$89$25 – $247202448 listings$162$35 – $265202334 listings$99$61 – $305202245 listings$88$25 – $247

Same year, other trims

What other 2021 Chevy Tahoe transmission control module variants are available?

Air Bag, (below LH front seat)

39 listings$111$50 – $172

Communication, telematics (OnStar, opt UE1), ID 85528813

38 listings$99$50 – $305

Body Control (BCM), (LH firewall), ID 13546978

37 listings$70$35 – $176

Fuel Pump, (LH frame rail)

37 listings$51$35 – $176

Body Control (BCM), (LH firewall), ID 13541808

36 listings$70$35 – $176

Communication, wireless charger, (under console)

34 listings$71$25 – $166

Theft-Locking, (theft deterrent, under floor console)

34 listings$100$41 – $305

Door, hands free rear closer, (inside lifgate), ID 23414544

32 listings$125$25 – $415

Memory, (below driver seat), ID 13536040

31 listings$51$41 – $260

Communication, telematics (OnStar, opt UE1), ID 84946160

30 listings$218$60 – $395

Lamps, (LH dash), ID 13545349

29 listings$147$78 – $305

Transmission, (on transmission)

29 listings$110$30 – $221

Door, power liftgate, (inside LH quarter panel)

28 listings$95$50 – $214

Driver Assist, park assist, (RH quarter panel)

21 listings$128$46 – $147

Towing Control, (RH rear frame)

19 listings$153$35 – $187

Memory, (below driver seat), ID 13536041

15 listings$51$41 – $147

Lamps, (LH dash), ID 13541369

10 listings$153$61 – $268

Communication, telematics (OnStar, opt UE1), ID 84946159

10 listings$145$70 – $170

Driver Assist, forward collision warning, (LH roof)

10 listings$153$95 – $164

Suspension, air suspension (opt F47), air suspension control (compressor mounted)

10 listings$216$81 – $286

Suspension, air suspension (opt F47), suspension control (LH quarter panel)

10 listings$153$100 – $240

Suspension, suspension control, (rear center frame mounted)

9 listings$111$111 – $128

Transfer Case, (LH inner fender)

8 listings$176$150 – $176

Differential Lock, (LH quarter panel)

7 listings$153$131 – $187

Communication, telematics (OnStar, opt UE1), ID 84946162

2 listings$359$101 – $359

Communication, telematics (OnStar, opt UE1), ID 84946163

2 listings$190$100 – $190

Door, hands free rear closer, (inside lifgate), ID 86777551

2 listings$225$46 – $225

Back to full guide

2021 Chevy Tahoe transmission control module — all trims

View 2021 guide

Common questions

2021 Chevy Tahoe transmission control module (Network Gateway, (LH firewall)) FAQ

How much is a used 2021 Chevy Tahoe transmission control module (Network Gateway, (LH firewall))?

Based on 11 priced salvage-yard listings, a used 2021 Chevy Tahoe transmission control module in the Network Gateway, (LH firewall) variant lists between $85 and $145, with a median asking price of $125.

Which years use the Network Gateway, (LH firewall) transmission control module?

The Network Gateway, (LH firewall) variant appears in model years 2021, 2022, 2023, 2024, 2025. Prices and availability may differ by year.