2018 Infiniti Q50 engine computer price snapshot
- Low
- $40
- Average
- $163
- High
- $338
Year-specific price guide
Used 2018 Infiniti Q50 Engine Computer prices
Year-specific used engine computer pricing for the 2018 Infiniti Q50, built from real salvage yard and junkyard listings with condition grade and fitment detail.
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 4, 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 2018 Infiniti Q50 engine computer
A used 2018 Infiniti Q50 engine computer costs between $40 and $338, with a median of $175 from 38 salvage yard listings.
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 2018 Infiniti Q50 engine computer costs $40 to $338, with a median asking price of $175. Based on 38 priced salvage yard listings across the US, compatible across 2015–2020 (6 model years), updated Oct 4, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$186
Grade B (good)$100
USD
Condition comparison
Price by part grade
Grade AClean / low wear$40–$33833 listings
Grade BStandard used$100–$1001 listings
Grade XUngraded$45–$1754 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $40–$338 | 33 | |
| Grade BStandard used | $100–$100 | 1 | |
| Grade XUngraded | $45–$175 | 4 |
Median by grade
Grade price comparison
Grade A$186
Grade B$100
Ungraded$100
Median asking price by seller-reported condition grade · $40–$338 overall range
Replacement cost
What is the 2018 Infiniti Q50 engine computer replacement cost?
- Used part
- $175
- 2018 Infiniti Q50 median asking price
- Labor
- $95–$450
- 1–3 hours at $95–$150/hr
- Estimated total
- $270–$625
- 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
Fitment matters
Price by trim & variant
Electronic Control Module, 3.5L, (VQ35HR, Hybrid), gasoline (engine control, RH kick panel)11 listings$220$170 – $338
Electronic Control Module, 3.5L, (VQ35HR, Hybrid), electric (motor control, behind rear seat), AWD, adaptive cruise7 listings$125$60 – $192
Electronic Control Module, 3.5L, (VQ35HR, Hybrid), electric (motor control, behind rear seat), RWD, adaptive cruise3 listings$186$186 – $254
Electronic Control Module, 3.5L, (VQ35HR, Hybrid), electric (motor control, behind rear seat), AWD, w/o adaptive cruise2 listingsInterchange 2015–2017$200$100 – $200
Year-specific context
How does the 2018 Infiniti Q50 compare?
The 2018 guide is based on 57 observed listings, including 38 with posted prices. Its $175 median is 25% above the Infiniti Q50 guide's $140 median.
Among the 9 model years with current price data, 2018 ranks #8 from lowest to highest median.
Interchange data shows this part is also listed under model years 2015, 2016, 2017, 2019, 2020. Shopping across all 6 compatible years may surface better prices or condition grades.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Compare model years
What does a Infiniti Q50 engine computer cost in other years?
20248 listingsNo priced listings yet202318 listings$330$128 – $432202250 listings$125$65 – $400202150 listings$143$40 – $298202050 listingsCompatible$162$50 – $2712019100 listingsCompatible$125$70 – $3342017218 listingsCompatible$144$37 – $290201693 listingsCompatible$108$40 – $3252015212 listingsCompatible$120$40 – $500
Keep browsing this vehicle
What other Infiniti Q50 parts are priced?
01wide ±168%
AC Compressor
$150median
$35$540
02wide ±262%
ABS Module
$165median
$37$900
03wide ±232%
Air Bag
$125median
$31$611
04wide ±212%
Alternator
$85median
$25$385
05wide ±209%
Axle Shaft
$86median
$25$385
06spread ±55%
Blower Motor
$50median
$35$90
07wide ±269%
Brake Caliper
$75median
$20$423
08wide ±83%
Rear Bumper Assembly
$471median
$190$975
09wide ±103%
Front Bumper
$425median
$125$1,000
10wide ±60%
Rear Bumper
$400median
$175$652
11wide ±208%
Car Radio
$114median
$25$500
12wide ±124%
Center Console
$100median
$40$288
13wide ±234%
AC Condenser
$113median
$35$563
14wide ±157%
Control Arm
$91median
$35$321
15
Differential
Price data updating
16wide ±106%
Door Assembly
$350median
$141$881
17wide ±144%
Drive Shaft
$170median
$50$540
18wide ±100%
Engine
$4,500median
$699$9,682
19wide ±171%
Exhaust Manifold
$120median
$40$450
20wide ±68%
Fender
$270median
$125$490
21wide ±141%
Fog Light
$150median
$28$450
22wide ±161%
Front Seat
$205median
$60$720
23wide ±149%
Fuel Pump
$114median
$35$375
24wide ±134%
Fuel Tank
$108median
$45$335
25wide ±213%
Grille
$197median
$35$873
26wide ±107%
Headlight Assembly
$821median
$250$2,000
27
Heater Core
Price data updating
28wide ±81%
Hood
$456median
$217$960
29wide ±132%
Ignition Switch
$66median
$30$204
30wide ±83%
Instrument Cluster
$130median
$65$280
31wide ±169%
Intake Manifold
$121median
$40$450
32wide ±155%
Master Cylinder
$99median
$25$331
33wide ±274%
Side Mirror
$206median
$35$1,162
34wide ±172%
Power Steering Pump
$162median
$38$595
35wide ±79%
Quarter Panel
$400median
$225$857
36wide ±240%
Radiator
$150median
$35$755
37wide ±195%
Rear View Mirror
$75median
$25$318
38wide ±142%
Starter
$65median
$25$210
39wide ±126%
Steering Column
$159median
$45$445
40wide ±201%
Steering Rack
$300median
$50$1,258
41wide ±201%
Steering Wheel
$174median
$40$738
42wide ±149%
Strut
$100median
$30$327
43wide ±108%
Sunroof
$222median
$70$550
44wide ±122%
Tail Light
$159median
$59$447
45wide ±110%
Tailgate
$326median
$125$842
46wide ±214%
Throttle Body
$75median
$29$350
47
Torque Converter
Price data updating
48wide ±190%
Transfer Case
$184median
$75$774
49wide ±273%
Transmission
$800median
$134$4,500
50wide ±257%
Transmission Control Module
$101median
$24$544
51wide ±230%
Turbocharger
$250median
$73$1,222
52wide ±265%
Water Pump
$115median
$30$640
53wide ±187%
Wheels
$197median
$39$775
54wide ±171%
Window Regulator
$80median
$40$313
Common questions
2018 Infiniti Q50 engine computer FAQ
How much is a used 2018 Infiniti Q50 engine computer?
Based on 38 priced salvage-yard listings, a used 2018 Infiniti Q50 engine computer lists between $40 and $338, with a median asking price of $175.
How much does it cost to replace a 2018 Infiniti Q50 engine computer?
Using a used part, a 2018 Infiniti Q50 engine computer replacement typically runs $270–$625 all-in: the median used engine computer for this year lists at $175, 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.
Will a 2018 Infiniti Q50 engine computer fit another year?
Based on salvage-yard interchange data, listings for the 2018 Infiniti Q50 engine computer also appear under model years 2015, 2016, 2017, 2019, 2020, suggesting these years share compatible fitments. Always verify the exact part number, drivetrain, trim, and your VIN before buying — interchange compatibility can vary by variant.
How much is a 2018 Infiniti Q50 ecu?
A ecu is another name for a engine computer. The prices on this page cover the 2018 Infiniti Q50 engine computer — median $175, from 38 listings.