This is a representative photo of the same part, not the exact unit you'll receive. Since each used part has its own wear, yours may look slightly different.
OEM Engine Control Module (ECM) for 2013-2014 Chevrolet & GMC - Front, Left (Driver)
$
362
.95
30-DayReturns
6-monthWarranty
100%Money-Back
Condition: Excellent (A) — like new, minimal to no wear
Professionally inspected and tested.
Product Notes Read before buying
This is a used engine control module. It fits vehicles with the 6.6L engine and an automatic transmission. This part is a programmable control module. It must be programmed at a dealership to ensure driveability and emission standards. This part is for vehicles without the pull-ahead design.
This is a used engine control module for vehicles with the 6.6L Duramax turbo diesel engine. This module must be programmed to your vehicle's VIN by a qualified technician or dealership to ensure proper function, driveability, and compliance with emission standards. For 2014 Express and Savana vans, this part fits models WITHOUT the 'pull-ahead design' (RPO code ZK3).
This is a used engine control module for vehicles with the 6.6L Duramax turbo diesel engine. This module must be programmed to your vehicle's VIN by a qualified technician or dealership to ensure proper function, driveability, and compliance with emission standards. For 2014 Express and Savana vans, this part fits models WITHOUT the 'pull-ahead design' (RPO code ZK3).
Why Buy Used OEM Parts?
Checked & Tested
We check and test every used part before we sell it. It may show some wear, but it works and is ready to install.
Original Equipment
This is the same part your vehicle came with from the factory. It fits and works just like the original — because it is one.
Works Like New
A few marks on the outside don't change what's inside. The part works the way it should.
Big Savings
Pay 50–80% less than buying new. Same factory part, much lower price.
Not sure? Ask Wrenchy — Your Parts Assistant.
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Vehicle Fitment Guide
This part fits the following vehicles:
Chevrolet
4 models(tapclick to hide)
Express 2500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
Applies to every configuration above: Hollander: EXPRESS 2500 VAN 13 Electronic Control Module; (LH rear engine compartment), 6.6L | EXPRESS 2500 VAN 14 Electronic Control Module; (LH rear engine compartment), 6.6L, w/o pull-ahead design; engine_size: include 6.6L; fuel_type: include DIESEL; application_notes: exclude For 2014 Express/Savana vans, fits models WITHOUT the pull-ahead design (RPO code ZK3).
Express 3500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Cutaway Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LS | Extended Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LS | Standard Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LT | Extended Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LT | Standard Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
Applies to every configuration above: Hollander: EXPRESS 3500 VAN 13 Electronic Control Module; (LH rear engine compartment), 6.6L | EXPRESS 3500 VAN 14 Electronic Control Module; (LH rear engine compartment), 6.6L, w/o pull-ahead design; engine_size: include 6.6L; fuel_type: include DIESEL; application_notes: exclude For 2014 Express/Savana vans, fits models WITHOUT the pull-ahead design (RPO code ZK3).
Silverado 2500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 2013 - 2014 |
Silverado 3500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 2013 - 2014 |
GMC
6 models(tapclick to hide)
Savana 2500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Extended Cargo Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.0L CNG | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.0L CNG | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LS | Standard Passenger Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| LS | Standard Passenger Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| LT | Standard Passenger Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| LT | Standard Passenger Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| SL | Standard Passenger Van | 2013 | V8 4.8L FLEX | RWD | Automatic |
| SL | Standard Passenger Van | 2013 | V8 6.0L FLEX | RWD | Automatic |
| SLE | Standard Passenger Van | 2013 | V8 4.8L FLEX | RWD | Automatic |
| SLE | Standard Passenger Van | 2013 | V8 6.0L FLEX | RWD | Automatic |
Applies to every configuration above: Hollander: SAVANA 2500 VAN 13 Electronic Control Module; (LH rear engine compartment), 6.6L | SAVANA 2500 VAN 14 Electronic Control Module; (LH rear engine compartment), 6.6L, w/o pull-ahead design; engine_size: include 6.6L; fuel_type: include DIESEL; application_notes: exclude For 2014 Express/Savana vans, fits models WITHOUT the pull-ahead design (RPO code ZK3).
Savana 3500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Cutaway Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| Base | Cutaway Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| Base | Cutaway Van | 2013 - 2014 | V8 6.0L CNG | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.0L CNG | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.0L CNG | RWD | Automatic |
| Base | Cutaway Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| Base | Extended Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| Base | Standard Cargo Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LS | Extended Passenger Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| LS | Standard Passenger Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| LS | Extended Passenger Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| LS | Standard Passenger Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| LS | Extended Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LS | Standard Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LT | Extended Passenger Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| LT | Standard Passenger Van | 2013 - 2014 | V8 4.8L FLEX | RWD | Automatic |
| LT | Extended Passenger Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| LT | Standard Passenger Van | 2013 - 2014 | V8 6.0L FLEX | RWD | Automatic |
| LT | Extended Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| LT | Standard Passenger Van | 2013 - 2014 | V8 6.6L DIESEL Turbo | RWD | Automatic |
| SL | Extended Passenger Van | 2013 | V8 4.8L FLEX | RWD | Automatic |
| SL | Standard Passenger Van | 2013 | V8 4.8L FLEX | RWD | Automatic |
| SL | Extended Passenger Van | 2013 | V8 6.0L FLEX | RWD | Automatic |
| SL | Standard Passenger Van | 2013 | V8 6.0L FLEX | RWD | Automatic |
| SLE | Extended Passenger Van | 2013 | V8 4.8L FLEX | RWD | Automatic |
| SLE | Standard Passenger Van | 2013 | V8 4.8L FLEX | RWD | Automatic |
| SLE | Extended Passenger Van | 2013 | V8 6.0L FLEX | RWD | Automatic |
| SLE | Standard Passenger Van | 2013 | V8 6.0L FLEX | RWD | Automatic |
| LS | Extended Passenger Van | 2014 | V8 6.0L CNG | RWD | Automatic |
| LS | Standard Passenger Van | 2014 | V8 6.0L CNG | RWD | Automatic |
Applies to every configuration above: Hollander: SAVANA 3500 VAN 13 Electronic Control Module; (LH rear engine compartment), 6.6L | SAVANA 3500 VAN 14 Electronic Control Module; (LH rear engine compartment), 6.6L, w/o pull-ahead design; engine_size: include 6.6L; fuel_type: include DIESEL; application_notes: exclude For 2014 Express/Savana vans, fits models WITHOUT the pull-ahead design (RPO code ZK3).
Sierra 2500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 2013 - 2014 |
Sierra 2500 HD
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Denali | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| Denali | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLE | Crew Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| SLE | Crew Cab Pickup | 2013 - 2014 | V8 6.0L CNG | - |
| SLE | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| SLE | Extended Cab Pickup | 2013 | V8 6.0L FLEX | - |
| SLE | Extended Cab Pickup | 2013 | V8 6.0L CNG | - |
| SLE | Extended Cab Pickup | 2013 | V8 6.0L | - |
| SLE | Standard Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| SLE | Standard Cab Pickup | 2013 - 2014 | V8 6.0L CNG | - |
| SLE | Standard Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| SLE | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLE | Extended Cab Pickup | 2013 | V8 6.6L DIESEL Turbo | - |
| SLE | Standard Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| SLT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L CNG | - |
| SLT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| SLT | Extended Cab Pickup | 2013 | V8 6.0L FLEX | - |
| SLT | Extended Cab Pickup | 2013 | V8 6.0L CNG | - |
| SLT | Extended Cab Pickup | 2013 | V8 6.0L | - |
| SLT | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLT | Extended Cab Pickup | 2013 | V8 6.6L DIESEL Turbo | - |
| WT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L CNG | - |
| WT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| WT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| WT | Extended Cab Pickup | 2013 | V8 6.0L CNG | - |
| WT | Extended Cab Pickup | 2013 | V8 6.0L | - |
| WT | Extended Cab Pickup | 2013 | V8 6.0L FLEX | - |
| WT | Standard Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| WT | Standard Cab Pickup | 2013 - 2014 | V8 6.0L CNG | - |
| WT | Standard Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| WT | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| WT | Extended Cab Pickup | 2013 | V8 6.6L DIESEL Turbo | - |
| WT | Standard Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| Denali | Crew Cab Pickup | 2014 | V8 6.0L | - |
Applies to every configuration above: RWD/4WD | Automatic
Sierra 3500
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 2013 - 2014 |
Sierra 3500 HD
2013-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Denali | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| Denali | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLE | Cab & Chassis | 2013 - 2014 | V8 6.0L | - |
| SLE | Cab & Chassis | 2013 - 2014 | V8 6.0L FLEX | - |
| SLE | Crew Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| SLE | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| SLE | Extended Cab Pickup | 2013 | V8 6.0L FLEX | - |
| SLE | Extended Cab Pickup | 2013 | V8 6.0L | - |
| SLE | Standard Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| SLE | Standard Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| SLE | Cab & Chassis | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLE | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLE | Extended Cab Pickup | 2013 | V8 6.6L DIESEL Turbo | - |
| SLE | Standard Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| SLT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| SLT | Extended Cab Pickup | 2013 | V8 6.0L FLEX | - |
| SLT | Extended Cab Pickup | 2013 | V8 6.0L | - |
| SLT | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| SLT | Extended Cab Pickup | 2013 | V8 6.6L DIESEL Turbo | - |
| WT | Cab & Chassis | 2013 - 2014 | V8 6.0L FLEX | - |
| WT | Cab & Chassis | 2013 - 2014 | V8 6.0L | - |
| WT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| WT | Crew Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| WT | Extended Cab Pickup | 2013 | V8 6.0L | - |
| WT | Extended Cab Pickup | 2013 | V8 6.0L FLEX | - |
| WT | Standard Cab Pickup | 2013 - 2014 | V8 6.0L FLEX | - |
| WT | Standard Cab Pickup | 2013 - 2014 | V8 6.0L | - |
| WT | Cab & Chassis | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| WT | Crew Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| WT | Extended Cab Pickup | 2013 | V8 6.6L DIESEL Turbo | - |
| WT | Standard Cab Pickup | 2013 - 2014 | V8 6.6L DIESEL Turbo | - |
| Denali | Crew Cab Pickup | 2014 | V8 6.0L | - |
Applies to every configuration above: 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, in plain English.
Shipping & Handling
- Standard shipping: 3-7 business days via UPS Ground
- Parts are carefully packaged to prevent damage during transit
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.
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
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.
Expert Guides
2014-2015 Duramax 6.6L ECM Failure: A Guide for Silverado, Sierra, Express & Savana
Diagnose a failing engine computer in your 6.6L Duramax diesel and understand the critical programming steps required for a successful replacement.
Read Full Guide →Related Trouble Codes (OBD-II)
20 matching guidesIf 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.
P0191
Causes for Fuel Rail Pressure Sensor Issues
2010-2014 Chevrolet EXPRESS
P0191
Fuel Rail Pressure Sensor Causes and Fixes
2010-2014 Chevrolet SILVERADO
P0333
Knock Sensor Circuit Causes and Fixes
2014-2018 Gmc SIERRA 2500
P0601
Control Module Memory Error Fixes
2008-2015 Chevrolet SILVERADO 3500
P0602
Control Module Programming Error Causes and Fixes
2003-2014 GMC Savana
P0604
RAM Error Causes and Fixes
2008-2015 Chevrolet SILVERADO 3500
P0605
Internal Control Module ROM Error Causes and Fixes
2007-2013 GMC Sierra
P0605
Internal ECM ROM Error Causes and Fixes
2007-2013 Chevrolet Silverado
P0606
ECM Processor Fault Causes & Fixes
2013-2019 Chevrolet SILVERADO 3500
P0606
ECM Processor Fault Causes and Fixes
2014-2018 Chevrolet Silverado
P0607
Control Module Performance Causes and Fixes
2014-2019 Chevrolet Silverado
P1621
Control Module Memory Fault Causes and Fixes
2008-2015 Chevrolet SILVERADO 3500
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
Miscellaneous Information
OEM Part Numbers:
AC Delco: 12659091
ACDelco: 12654088
GM: 12653319, 12654884
Fits Years: 2013 2014
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