Cadillac XT4 engine computer price snapshot
- Low
- $50
- Average
- $139
- High
- $330
Vehicle-specific price guide
How much is a used Cadillac XT4 engine computer?
Asking prices from 73 salvage yards in 10 states, broken down by model year, condition grade, and fitment variant.
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 updatedOct 7, 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.
Part overview
About the Cadillac XT4 engine computer
What the engine computer does, common failure signs, and prices across all vehicles: used engine computer price guide →
Also known asECUECMPCMEngine Control ModuleEngine Control UnitPowertrain Control Module
Price summary
A used Cadillac XT4 engine computer costs $50 to $330, with a median asking price of $146. Based on 307 priced salvage yard listings across the US, compatible across 2019–2025 (7 model years), updated Oct 7, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$146
Grade B (good)$146
USD
Condition comparison
Price by part grade
Grade AClean / low wear$50–$330202 listings
Grade BStandard used$55–$22691 listings
Grade XUngraded$50–$30014 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $50–$330 | 202 | |
| Grade BStandard used | $55–$226 | 91 | |
| Grade XUngraded | $50–$300 | 14 |
Median by grade
Grade price comparison
Grade A$146
Grade B$146
Ungraded$100
Median asking price by seller-reported condition grade · $50–$330 overall range
Regional supply
Where the Cadillac XT4 engine computer is listed
We found priced Cadillac XT4 engine computer listings at 73 salvage yards across 10 states. Illinois supplies the most, with 100 listings (31% of the total) from 2 yards. Location matters: yards in California ask a median $50, while Texas yards ask $182, 264% more for the same part. Shipping usually costs less than that gap for smaller parts, so it can pay to buy out of state.
| State | Listings | Yards | Median ask |
|---|---|---|---|
| Illinois | 100 | 2 | $146 |
| Florida | 89 | 26 | $103-29% |
| Arizona | 44 | 10 | $120-18% |
| Texas | 40 | 7 | $182+25% |
| California | 29 | 15 | $50-66% |
States with at least 10 priced listings. % is versus the $146 national median.
Replacement cost
What is the Cadillac XT4 engine computer replacement cost?
- Used part
- $146
- Cadillac XT4 median asking price
- Labor
- $95–$450
- 1–3 hours at $95–$150/hr
- Estimated total
- $240–$595
- median used part + labor
Labor is a typical independent-shop range for engine computer replacement, not a quote for your vehicle; it does not include programming and key relearn procedure. The part price is the live median from the salvage-yard listings on this page. Full engine computer replacement cost breakdown
Sources
- Labor time estimates: Part Price Guide labor database
Model-year comparison
What does a Cadillac XT4 engine computer cost by year?
Market analysis
How much does a used Cadillac XT4 engine computer cost?
Asking prices for a used Cadillac XT4 engine computer are unusually spread out: the top listing asks about 7 times what the cheapest does, so which unit you pick matters more than the median.
Model year matters too: 2025 units carry the lowest median at $99, while 2020 tops the table at $184. Parts from 2022–2025 are interchangeable, so if the 2025 fits your vehicle, it offers the best value across 4 compatible years.
Against comparable vehicles, the Cadillac XT4 sits 30% above the Honda Accord ($112), 32% above the Honda Civic ($111), and 16% above the Hyundai Elantra ($126) for the same part. The “similar vehicles” cards below open each comparison guide.
Buying a used engine computer: what to check
- Match hardware and service numbers: Ensure hardware revision codes and circuit board part numbers match exactly, as pinouts change mid-model year.
- Inspect multi-pin connector headers: Check header pins for bending, green copper oxidation, or burnt circuit board traces inside the wiring sockets.
- Verify immobilizer programming requirements: Plan for anti-theft security relearn procedures or ECU re-flashing before the replacement computer will start the engine.
- Confirm donor transmission and emissions spec: Ensure the donor vehicle used the same transmission type and regional emissions package to prevent fault codes.
- Check aluminum casing seals: Inspect housing screws and perimeter rubber gaskets for white oxidation or breaks that indicate past water intrusion.
Keep browsing this vehicle
What other Cadillac XT4 parts are priced?
01wide ±232%
Transmission Control Module
$85median
$20$415
02wide ±128%
Tail Light
$209median
$39$575
03wide ±141%
Car Radio
$141median
$50$449
04wide ±100%
Front Seat
$200median
$100$500
05wide ±220%
Air Bag
$200median
$45$925
06wide ±197%
Axle Shaft
$115median
$40$493
07wide ±122%
Wheels
$215median
$60$585
08wide ±103%
Side Mirror
$250median
$95$612
09wide ±131%
Center Console
$155median
$40$445
10wide ±128%
Steering Column
$172median
$50$491
11wide ±157%
Rear View Mirror
$103median
$25$349
12wide ±185%
Brake Caliper
$124median
$35$493
Price comparisons
Compare Cadillac XT4 engine computer prices
Engine Computercompare
HondaAccordvsCadillacXT4
Accord$112
XT4$146
$34 diff8,512 listings
Engine ComputercompareHondaCivicvsCadillacXT4
Civic$111
XT4$146
$35 diff8,347 listings
Engine ComputercompareHyundaiElantravsCadillacXT4
Elantra$126
XT4$146
$20 diff7,903 listings
Engine ComputercompareHondaPilotvsCadillacXT4
Pilot$125
XT4$146
$21 diff5,420 listings
Engine ComputercompareHyundaiTucsonvsCadillacXT4
Tucson$156
XT4$146
$10 diff5,113 listings
Engine ComputercompareToyotaRAV4vsCadillacXT4
RAV4$161
XT4$146
$15 diff4,463 listings
Compare fitments
What do similar vehicles charge for this part?
Acurawide ±167%
Acura ILX
$138median
$40$500
Acurawide ±153%
Acura Integra
$155median
$50$525
Acurawide ±219%
Acura MDX
$135median
$35$625
Acurawide ±162%
Acura RDX
$155median
$42$543
Acurawide ±208%
Acura TLX
$125median
$33$553
Audiwide ±174%
Audi A4
$175median
$35$644
Audiwide ±122%
Audi A6
$184median
$50$500
Audiwide ±188%
Audi Q3
$200median
$50$800
Cadillacwide ±150%
Cadillac CT5
$169median
$40$548
Cadillacspread ±43%
Cadillac CTS
$82median
$55$125
Cadillacwide ±148%
Cadillac Escalade
$166median
$40$530
Cadillacwide ±174%
Cadillac XT5
$99median
$40$385
Common questions
Cadillac XT4 engine computer FAQ
How much is a used engine computer for a Cadillac XT4?
The median asking price is $146 across 307 priced listings from 73 yards. Grade-A units, the cleanest stock, have a median of $146. 2025 is the cheapest model year we track, with a median of $99.
How much does it cost to replace a Cadillac XT4 engine computer?
Using a used part, a Cadillac XT4 engine computer replacement typically runs $240–$595 all-in: the median used engine computer for this model lists at $146, and independent-shop labor for engine computer replacement typically takes 1–3 hours at $95–$150/hr ($95–$450). The labor figure does not include programming and key relearn procedure. Labor is a national part-level estimate, not a quote for your vehicle.
Which Cadillac XT4 model years does this price guide cover?
This guide currently has year-level pricing for 2025, 2024, 2023, 2022, 2021, 2020, 2019. Other model years contribute to the overall range where sellers listed them without a year breakdown.
Which Cadillac XT4 engine computer years are interchangeable?
Salvage-yard interchange data links Cadillac XT4 engine computer fitments across 2019, 2020, 2021, 2022, 2023, 2024, 2025. Searching all 7 years widens the pool of units; confirm the part number against your VIN, since trim or drivetrain can split an interchange group.