2021 GMC Sierra 1500 engine computer price snapshot
- Low
- $41
- Average
- $156
- High
- $440
Year-specific price guide
Used 2021 GMC Sierra 1500 Engine Computer prices
Year-specific used engine computer pricing for the 2021 GMC Sierra 1500, 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 updatedAug 31, 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 2021 GMC Sierra 1500 engine computer
A used 2021 GMC Sierra 1500 engine computer costs between $41 and $440, with a median of $160 from 356 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 2021 GMC Sierra 1500 engine computer costs $41 to $440, with a median asking price of $160. Based on 356 priced salvage yard listings across the US, compatible across 2017–2023 (7 model years), updated Aug 31, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$147
Grade B (good)$172
Grade C (fair)$150
USD
Condition comparison
Price by part grade
Grade AClean / low wear$45–$440171 listings
Grade BStandard used$41–$341164 listings
Grade CVisible wear$150–$1503 listings
Grade XUngraded$50–$40018 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $45–$440 | 171 | |
| Grade BStandard used | $41–$341 | 164 | |
| Grade CVisible wear | $150–$150 | 3 | |
| Grade XUngraded | $50–$400 | 18 |
Median by grade
Grade price comparison
Grade A$147
Grade B$172
Grade C$150
Ungraded$150
Median asking price by seller-reported condition grade · $41–$440 overall range
Replacement cost
What is the 2021 GMC Sierra 1500 engine computer replacement cost?
- Used part
- $160
- 2021 GMC Sierra 1500 median asking price
- Labor
- $95–$450
- 1–3 hours at $95–$150/hr
- Estimated total
- $255–$610
- 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
Diesel Control, (beside 12v battery), (glow plug control)48 listingsInterchange 2017–2022$146$50 – $322
Electronic Control Module, (LH front engine compartment), 3.0L48 listingsInterchange 2020–2022$145$61 – $440
Electronic Control Module, (LH front engine compartment), 2.7L47 listingsInterchange 2020–2022$160$50 – $250
Electronic Control Module, (LH front engine compartment), 4.3L47 listingsInterchange 2019–2023$150$41 – $327
Electronic Control Module, (LH front engine compartment), 5.3L, ID 1271186747 listingsInterchange 2019–2023$150$41 – $327
Electronic Control Module, (LH front engine compartment), 6.2L, ID 1271186747 listingsInterchange 2019–2023$150$41 – $327
Electronic Control Module, (LH front engine compartment), 5.3L, ID 1271185236 listingsInterchange 2019–2022$204$71 – $204
Electronic Control Module, (LH front engine compartment), 6.2L, ID 1271185236 listingsInterchange 2019–2022$204$71 – $204
Year-specific context
How does the 2021 GMC Sierra 1500 compare?
The 2021 guide is based on 400 observed listings, including 356 with posted prices. Its $160 median is 17% above the GMC Sierra 1500 guide's $137 median.
Among the 11 model years with current price data, 2021 ranks #8 from lowest to highest median.
Interchange data shows this part is also listed under model years 2017, 2018, 2019, 2020, 2022, 2023. Shopping across all 7 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 GMC Sierra 1500 engine computer cost in other years?
2025200 listings$110$50 – $341202495 listings$161$65 – $287202393 listingsCompatible$134$40 – $3692022350 listingsCompatible$156$50 – $3712020300 listingsCompatible$161$50 – $3252019250 listingsCompatible$167$40 – $2942018146 listingsCompatible$101$41 – $330201772 listingsCompatible$100$30 – $3952016212 listings$126$51 – $243201550 listings$40$40 – $225
Keep browsing this vehicle
What other GMC Sierra 1500 parts are priced?
01wide ±136%
AC Compressor
$150median
$40$447
02wide ±91%
ABS Module
$201median
$85$450
03wide ±242%
Air Bag
$240median
$40$1,200
04wide ±134%
Alternator
$134median
$35$395
05wide ±123%
Axle Shaft
$165median
$50$456
06wide ±149%
Blower Motor
$85median
$40$294
07wide ±120%
Brake Caliper
$75median
$35$215
08wide ±193%
Rear Bumper Assembly
$644median
$140$2,625
09wide ±148%
Front Bumper
$250median
$79$819
10wide ±170%
Rear Bumper
$500median
$97$1,795
11wide ±173%
Car Radio
$147median
$34$544
12wide ±293%
Center Console
$203median
$35$1,225
13wide ±72%
AC Condenser
$195median
$40$321
14wide ±99%
Control Arm
$145median
$40$327
15
Differential
Price data updating
16wide ±112%
Door Assembly
$716median
$180$1,785
17wide ±167%
Drive Shaft
$243median
$65$878
18wide ±138%
Engine
$4,175median
$1,250$12,735
19wide ±270%
Exhaust Manifold
$71median
$25$408
20wide ±88%
Fender
$504median
$160$1,050
21wide ±123%
Fog Light
$163median
$35$435
22wide ±185%
Front Seat
$247median
$60$975
23wide ±246%
Fuel Pump
$135median
$34$699
24wide ±108%
Fuel Tank
$195median
$55$478
25wide ±108%
Grille
$480median
$153$1,194
26wide ±69%
Headlight Assembly
$875median
$318$1,520
27wide ±155%
Heater Core
$116median
$40$400
28spread ±57%
Hood
$791median
$375$1,275
29wide ±152%
Ignition Switch
$99median
$25$325
30
Instrument Cluster
Price data updating
31wide ±232%
Intake Manifold
$120median
$34$591
32wide ±250%
Master Cylinder
$56median
$25$305
33wide ±190%
Side Mirror
$255median
$55$1,025
34wide ±153%
Power Steering Pump
$136median
$35$450
35wide ±76%
Quarter Panel
$636median
$216$1,185
36wide ±134%
Radiator
$200median
$60$595
37wide ±265%
Rear View Mirror
$100median
$20$550
38wide ±154%
Starter
$89median
$30$305
39wide ±112%
Steering Column
$201median
$50$500
40wide ±94%
Steering Rack
$614median
$217$1,367
41wide ±180%
Steering Wheel
$190median
$40$725
42wide ±127%
Strut
$157median
$50$450
43wide ±153%
Sunroof
$389median
$126$1,320
44wide ±130%
Tail Light
$325median
$53$900
45wide ±239%
Tailgate
$800median
$178$3,995
46wide ±227%
Throttle Body
$77median
$25$375
47spread ±40%
Torque Converter
$450median
$142$500
48wide ±235%
Transfer Case
$378median
$67$1,845
49wide ±75%
Transmission
$2,595median
$1,295$5,204
50wide ±214%
Transmission Control Module
$125median
$25$560
51wide ±138%
Turbocharger
$675median
$190$2,054
52wide ±171%
Water Pump
$85median
$25$315
53wide ±210%
Wheels
$260median
$60$1,150
54wide ±127%
Window Regulator
$150median
$30$410
Common questions
2021 GMC Sierra 1500 engine computer FAQ
How much is a used 2021 GMC Sierra 1500 engine computer?
Based on 356 priced salvage-yard listings, a used 2021 GMC Sierra 1500 engine computer lists between $41 and $440, with a median asking price of $160.
How much does it cost to replace a 2021 GMC Sierra 1500 engine computer?
Using a used part, a 2021 GMC Sierra 1500 engine computer replacement typically runs $255–$610 all-in: the median used engine computer for this year lists at $160, 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 2021 GMC Sierra 1500 engine computer fit another year?
Based on salvage-yard interchange data, listings for the 2021 GMC Sierra 1500 engine computer also appear under model years 2017, 2018, 2019, 2020, 2022, 2023, 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 2021 GMC Sierra 1500 ecu?
A ecu is another name for a engine computer. The prices on this page cover the 2021 GMC Sierra 1500 engine computer — median $160, from 356 listings.