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OEM Engine Control Module (ECM) for 2021-2024 Cadillac, Chevrolet, & GMC

$ 156 .95

⚠️ ELECTRONIC MODULE NOTICE

This module may require programming to your vehicle by a dealer or qualified technician with professional diagnostic equipment.

  • Ships in a sealed inspection bag for visual inspection
  • Returns not accepted if inspection bag has been opened
  • "Needs programming" is not grounds for return
  • If told the module "won't program," contact us before returning
  • Defective units replaced ONLY ONCE, under warranty

Product Notes

This is a used engine control module for vehicles with the 6.2L engine. The module may need to be reprogrammed to your vehicle to work properly.
Condition: Excellent (A)
Like new, minimal to no wear
33,000 miles
Odometer reading when part was removed

Why Buy Used OEM Parts?

  • ✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested. While it may show some cosmetic wear, it's fully functional and ready to install.
  • ✓ Original Equipment: This is a genuine OEM part — the exact part that came with your vehicle from the factory. Perfect fitment and performance.
  • ✓ Works Like New: Despite visual wear, internal components and functionality are intact. Same reliability you'd expect from OEM quality.
  • ✓ Significant Savings: Save 50–80% vs. new. Factory quality at a fraction of the cost — the smart choice for budget-conscious owners.
30-dayreturns 6-monthwarranty 100%money-back
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Vehicle Fitment Guide

This part fits the following vehicles:

Cadillac 2 models(tapclick to expand)(tapclick to hide)
Escalade 2021-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Luxury SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
Premium Luxury SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
Premium Luxury Platinum SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
Sport SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
Sport Platinum SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
V SUV 2023 - 2024 V8 6.2L Supercharged AWD | Automatic
2022
Escalade ESV 2021-2022 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Luxury SUV 2021 - 2022 V8 6.2L RWD/4WD | Automatic
Premium Luxury SUV 2021 - 2022 V8 6.2L RWD/4WD | Automatic
Premium Luxury Platinum SUV 2021 - 2022 V8 6.2L RWD/4WD | Automatic
Sport SUV 2021 - 2022 V8 6.2L RWD/4WD | Automatic
Sport Platinum SUV 2021 - 2022 V8 6.2L RWD/4WD | Automatic
Chevrolet 3 models(tapclick to expand)(tapclick to hide)
Silverado 1500 2022-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Custom Crew Cab Pickup 2022 - 2024 V8 5.3L 4WD | Automatic
Custom Trail Boss Crew Cab Pickup 2022 - 2024 V8 5.3L 4WD | Automatic
High Country Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
High Country Crew Cab Pickup 2022 - 2024 V8 6.2L RWD/4WD | Automatic
LT Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
LT Extended Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
LT Trail Boss Crew Cab Pickup 2022 - 2024 V8 5.3L 4WD | Automatic
LT Trail Boss Crew Cab Pickup 2022 - 2024 V8 6.2L 4WD | Automatic
LTZ Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
LTZ Crew Cab Pickup 2022 - 2024 V8 6.2L RWD/4WD | Automatic
RST Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
RST Extended Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
RST Crew Cab Pickup 2022 - 2024 V8 6.2L RWD/4WD | Automatic
RST Extended Cab Pickup 2022 - 2024 V8 6.2L RWD/4WD | Automatic
WT Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
WT Extended Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
WT Standard Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
ZR2 Crew Cab Pickup 2022 - 2024 V8 6.2L 4WD | Automatic
PPV Crew Cab Pickup 2023 - 2024 V8 5.3L 4WD | Automatic
Suburban 2021-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Commercial SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
High Country SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
LS SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
LT SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
Premier SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
RST SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
Z71 SUV 2021 - 2024 V8 5.3L 4WD | Automatic
Premier SUV 2022 - 2024 V8 6.2L RWD/4WD | Automatic
RST SUV 2022 - 2024 V8 6.2L RWD/4WD | Automatic
Z71 SUV 2022 - 2024 V8 6.2L 4WD | Automatic
2023
Tahoe 2021-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Commercial SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
High Country SUV 2021 - 2022 V8 6.2L AWD | Automatic
High Country SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
LS SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
LT SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
PPV SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
Premier SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
RST SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
RST SUV 2021 - 2022 V8 5.3L AWD | Automatic
SSV SUV 2021 - 2024 V8 5.3L 4WD | Automatic
SSV SUV 2021 - 2023 V8 5.3L RWD | Automatic
Z71 SUV 2021 - 2024 V8 5.3L 4WD | Automatic
Premier SUV 2022 - 2024 V8 6.2L RWD/4WD | Automatic
RST SUV 2022 - 2024 V8 6.2L RWD/4WD | Automatic
Z71 SUV 2022 - 2024 V8 6.2L 4WD | Automatic
Police SUV 2023 - 2024 V8 5.3L RWD | Automatic
GMC 3 models(tapclick to expand)(tapclick to hide)
Sierra 1500 2022-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
AT4 Crew Cab Pickup 2022 - 2024 V8 6.2L 4WD | Automatic
AT4X Crew Cab Pickup 2022 - 2024 V8 6.2L 4WD | Automatic
Denali Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
Denali Crew Cab Pickup 2022 - 2024 V8 6.2L RWD/4WD | Automatic
Denali Ultimate Crew Cab Pickup 2022 - 2024 V8 6.2L 4WD | Automatic
Elevation Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
Elevation Extended Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
Pro Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
Pro Extended Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
Pro Standard Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
SLE Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
SLE Extended Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
SLT Crew Cab Pickup 2022 - 2024 V8 5.3L RWD/4WD | Automatic
SLT Crew Cab Pickup 2022 - 2024 V8 6.2L RWD/4WD | Automatic
Yukon 2021-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
AT4 SUV 2021 - 2024 V8 5.3L 4WD | Automatic
Denali SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
SLE SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
SLT SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
AT4 SUV 2022 - 2024 V8 6.2L 4WD | Automatic
Denali Ultimate SUV 2023 - 2024 V8 6.2L 4WD | Automatic
Denali Ultimate SUV 2023 V8 6.2L RWD | Automatic
Yukon XL 2021-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
AT4 SUV 2021 - 2024 V8 5.3L 4WD | Automatic
Denali SUV 2021 - 2024 V8 6.2L RWD/4WD | Automatic
SLE SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
SLT SUV 2021 - 2024 V8 5.3L RWD/4WD | Automatic
AT4 SUV 2022 - 2024 V8 6.2L 4WD | Automatic
Denali Ultimate SUV 2023 - 2024 V8 6.2L RWD/4WD | Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Go-Parts Garage · Featured Guide

2020-2022 Silverado & Sierra 3.0L Diesel ECM: A Guide to Replacement and Programming

This complete guide covers the Engine Control Module (ECM) for the 3.0L Duramax diesel engine, focusing on the critical programming required after replacement.

Read Full Guide

⚠️ Related Trouble Codes (OBD-II)

11 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.

Miscellaneous Information

OEM Part Numbers:
Other: 12703518, 12705320, 12710193, 12711353, 12719704, 12728246, 12728317

Fits Years: 2021 2022 2023 2024

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Years of Excellence

Trusted Since 2007

Nearly two decades of shipping parts to professionals & enthusiasts.

6MO
Warranty

Backed For The Long Haul

This part ships with a 6-month warranty. If it doesn't fit or stops working, we replace or refund — no hassle.

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