How to Install an Engine Control Module (ECM) on 2008 Jeep Grand Cherokee?

To be able to install the Engine Control Module (ECM), be sure that any new or moved injector has been adjusted. Install the ECM in the bracket, bolts, and the electrical connectors. Then, install battery tray and battery. Do not forget to program the new ECM after installation.

OEM 2008 Jeep Grand Cherokee Engine Control Module

Engine Control Computer

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6 Engine Control Modules found

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2008 Jeep Grand Cherokee Control Module Part Number: R5150255AC
Product Specifications
- Other Name: Module - Powertrain Control; Engine Control Module; PCM; ECM; Module Powertrain Control Generic
- Replaces: 5150255AC
- Item Weight: 6.20 Pounds
- Item Dimensions: 12.5 x 10.4 x 8.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: R5150255AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
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Fits the following 2008 Jeep Grand Cherokee Submodels:
- Laredo, Limited | 4.7L V8, 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
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2008 Jeep Grand Cherokee Control Module Part Number: R5150302AC
Product Specifications
- Other Name: Module - Powertrain Control; Engine Control Module; ECM; Module Powertrain Control Generic
- Replaces: 5150302AC, RL150302AC
- Item Weight: 3.30 Pounds
- Item Dimensions: 10.0 x 8.8 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: R5150302AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Jeep Grand Cherokee Submodels:
- Laredo | 3.7L V6, 6 Cyl 3.7 L GAS
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2008 Jeep Grand Cherokee Control Module Part Number: RL150311AC
Product Specifications
- Other Name: Module - Powertrain Control; Engine Control Module; ECM
- Replaces: 5150311AC, 5150311AA
- Item Weight: 3.80 Pounds
- Item Dimensions: 10.4 x 6.5 x 6.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: RL150311AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Jeep Grand Cherokee Submodels:
- SRT8 | 6.1L V8, 8 Cyl 6.1 L GAS
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2008 Jeep Grand Cherokee Control Module Part Number: RL150258AC
Product Specifications
- Other Name: Module - Powertrain Control; Engine Control Module; ECM
- Replaces: 5150258AC
- Item Weight: 3.30 Pounds
- Item Dimensions: 10.7 x 6.4 x 6.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: RL150258AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Jeep Grand Cherokee Submodels:
- Limited, Overland | 5.7L V8, 8 Cyl 5.7 L GAS
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2008 Jeep Grand Cherokee PCM Part Number: RL187298AD
Product Specifications
- Other Name: Module - Powertrain Control; Engine Control Module; ECM
- Replaces: 5187298AC, 5187298AB, 5187298AD
- Item Weight: 2.60 Pounds
- Item Dimensions: 10.4 x 6.4 x 6.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: RL187298AD
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Jeep Grand Cherokee Submodels:
- Laredo, Limited, Overland | 6 Cyl 3.0 L DIESEL
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2008 Jeep Grand Cherokee PCM Part Number: 5187296AD
Product Specifications
- Other Name: Module - Powertrain Control; Engine Control Module; ECM; Module Powertrain Control
- Replaces: RL187296AD
- Item Weight: 5.30 Pounds
- Item Dimensions: 10.7 x 6.6 x 6.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5187296AD
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Jeep Grand Cherokee Submodels:
- Laredo, Limited, Overland | 3.0L V6, 6 Cyl 3.0 L DIESEL

2008 Jeep Grand Cherokee Engine Control Module Parts and Q&A

Q: How to Install an Engine Control Module (ECM) on 2008 Jeep Grand Cherokee?
A: To be able to install the Engine Control Module (ECM), be sure that any new or moved injector has been adjusted. Install the ECM in the bracket, bolts, and the electrical connectors. Then, install battery tray and battery. Do not forget to program the new ECM after installation.