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| SKU | IND436403 |
| MPN | 436403 |
| GTIN | 840256910339 |
| Certifications | None |
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2016 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2016 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2016 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2016 | Chevrolet | Silverado 2500 HD | WT |
| 2015-2016 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2016 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2016 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2016 | Chevrolet | Silverado 3500 HD | WT |
| 2015-2016 | GMC | Sierra 2500 HD | Base |
| 2011-2016 | GMC | Sierra 2500 HD | Denali |
| 2011-2016 | GMC | Sierra 2500 HD | SLE |
| 2011-2016 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2015-2016 | GMC | Sierra 3500 HD | Base |
| 2011-2016 | GMC | Sierra 3500 HD | Denali |
| 2011-2016 | GMC | Sierra 3500 HD | SLE |
| 2011-2016 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
Experience a powerful upgrade for your 2011 to 2015 GM Duramax 6.6L LML with the Industrial Injection CP4 to CP3 Conversion Kit. This high-performance injection pump conversion is designed to replace the factory CP4 pump with a more reliable and tunable CP3 pump, addressing common issues found in the original fuel delivery setup. Ideal for enthusiasts looking to enhance fuel system durability and performance, this kit demands professional tuning to optimize engine output and reliability.
The conversion kit includes the Industrial Injection pump and all necessary components for installation into compatible Duramax engines, making it a straightforward swap for skilled mechanics and performance builders. By upgrading to the CP3 injection pump, you can expect improved fuel delivery consistency and a reduction in common CP4 pump failures, giving your diesel engine the support it needs for demanding conditions.
Whether you're building for motorsport, heavy-duty tasks, or enhanced everyday driving, this kit unlocks new potential in your Duramax-powered vehicle. Trust in Industrial Injection’s engineering and quality parts to keep your engine running stronger and longer. Order now to start your performance upgrade journey with Tuningsupply's expert service and fast European delivery.
The conversion kit includes the Industrial Injection pump and all necessary components for installation into compatible Duramax engines, making it a straightforward swap for skilled mechanics and performance builders. By upgrading to the CP3 injection pump, you can expect improved fuel delivery consistency and a reduction in common CP4 pump failures, giving your diesel engine the support it needs for demanding conditions.
Whether you're building for motorsport, heavy-duty tasks, or enhanced everyday driving, this kit unlocks new potential in your Duramax-powered vehicle. Trust in Industrial Injection’s engineering and quality parts to keep your engine running stronger and longer. Order now to start your performance upgrade journey with Tuningsupply's expert service and fast European delivery.
Customer reviews
Based on 160 reviews
Netherlands owned and operated
We want to deliver parts fast, efficiently, and with ease. Our mission is to continue to provide just that. To provide large inventory and efficient logistics while maintaining great service. As well as a community with like-minded auto enthusiasts that share the same passion as we do.

















