Used Ford Expedition transmission control module – Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB)

Trim-specific price guide

Ford Expedition Transmission Control ModuleTowing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) prices

Pricing for the Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) variant of the Ford Expedition transmission control module, aggregated from 81 salvage yard listings across 2 model years.
Price summary

A used Ford Expedition transmission control module (Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB)) costs $30 to $232, with a median asking price of $139. Based on 81 priced salvage yard listings across the US, updated Sep 11, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$35
Grade B (good)$190

Ford Expedition transmission control module — Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) price snapshot

USD
Low
$30
Average
$113
High
$232
81 priced listings across 2 model years· How we price·

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Reporting price for Ford Expedition Transmission Control Module (Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB))

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Condition comparison

Price by part grade

Grade AClean / low wear$30$23262 listings
Grade BStandard used$130$20018 listings
Grade CVisible wearUpdating
Grade XUngraded$71$711 listings

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $30$232 overall range

Trim-specific context

How is the Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) priced differently?

This pricing covers the Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) variant of the Ford Expedition transmission control module, based on 81 priced listings across 2 model years (2018, 2020). Its $139 median is 18% below the Ford Expedition transmission control module overall median of $170.

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 Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) cost by year?

Other trims

Other Ford Expedition transmission control module variants

Common questions

Ford Expedition transmission control module (Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB)) FAQ

How much is a used Ford Expedition transmission control module (Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB))?

Based on 81 priced salvage-yard listings across 2 model years, a used Ford Expedition transmission control module in the Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) variant lists between $30 and $232, with a median asking price of $139.

Which Ford Expedition years use the Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) transmission control module?

The Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) variant appears in model years 2018, 2020. Prices and availability differ by year.

Is there a price difference between Towing Control, under dash mounted, trailer backup assist, (ID GL3T-19H378-CB) condition grades?

Yes. Grade A has a median of $35, Grade B has a median of $190. Grade A parts are in excellent condition, B is good, and C is fair.