Car Parts Finder USA2025 GMC Sierra-1500 Engine Computer
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2025 GMC Sierra-1500 Engine Computer — Top Picks
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Unknown
20-25 GMC Sierra Engine Control Module Computer 2020-2025 ECM ECU 12717143
5.0(66,374)
$23.00
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UnknownFree Ship
2020-2025 BUICK ENCORE GX SERIAL DATA GATEWAY CONTROL MODULE UNIT COMPUTER ECU
5.0(6,142)
$43.55
$67.00-35%
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UnknownFree Ship
2018-2024 CHEVROLET TRAVERSE NETWORK GATEWAY CONTROL MODULE COMPUTER UNIT ECU
5.0(6,142)
$43.55
$67.00-35%
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UnknownFree Ship
2022-2025 Cadillac CT4 ECM ECU Engine Control Module Unit 2.0L RWD 23k Miles OEM
5.0(3,701)
$44.00
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Prices updated Sep 3, 2026. Actual prices may vary.
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Car Parts Finder USA
Need a Engine Computer for your 2025 GMC Sierra-1500? Car Parts Finder USA searches thousands of sellers to find the best engine computer at the lowest prices with guaranteed fitment.
- Engine Computer from verified sellers with condition grading
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- Warranty included from most sellers (30-90 days)
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New Vehicle — Buying Tips
Your 2025 GMC Sierra-1500 is relatively new. When replacing the engine computer, consider OEM parts to maintain warranty coverage and optimal compatibility. Dealer alternatives can save 20-30% while still using genuine-spec components.
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$23.00 – $45.00
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Browse Suspension & BrakesAbout the 2025 GMC Sierra-1500 Engine Computer
The Engine Computer (ECU/ECM/PCM) is your vehicle's brain, controlling fuel injection, ignition timing, emissions, and overall engine performance. A failing ECU can cause check engine lights, poor fuel economy, starting issues, and erratic engine behavior.
Signs of Failure
- Check engine light stays on
- Engine won't start or hard starting
- Poor fuel economy
- Rough idle or stalling
- Transmission shifting problems
- Failed emissions test
- Random misfires
- Reduced power or limp mode
Replacement Info
ECU replacement requires matching the unit to your vehicle's VIN. Some units are plug-and-play while others need dealer programming. Used OEM units from the same model year and engine are often preferred as they may not require reprogramming.
Time: 30 min - 2 hours (plus programming time if needed)
Difficulty: Moderate - Easy to install, may need programming
2025 GMC Sierra-1500 Engine Computer — Price Comparison
Used / Salvage
$23.00 – $45.00
Best value option. Tested parts from salvage vehicles.
Aftermarket
$200-$600
New parts from third-party manufacturers. Great quality at lower cost.
OEM / Dealer
$400-$1,200
Original factory parts. Guaranteed fitment and manufacturer warranty.
Where to Find 2025 GMC Sierra-1500 Engine Computer
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