Industrial Injection 11-15 GM Duramax 6.6L LML CP4 to CP3 Conversion Kit with Pump (Tuning Req.) - 436403

SKU: IND436403 MPN: 436403
6 in stock at supplier
Sale price€2,222.77
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Expected Home Delivery Sep 01 - Sep 08
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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.

Why customers choose Tuningsupply

Paweł Plutowski
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Thank You for every single email that was a great job
2026-08-25
Miloslav Plašil
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Velmi rychlé dodání bez zbytečných otázek.
Produkt byl v pořádku a už na na mém Jeepu jezdí
2026-08-24
sverre slethaug
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Good and quick feedback, very good!
2026-08-21
Martin Dörig
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Super hilfreich und schnell. besten dank
2026-08-21
Ramazan Kat
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👍🏻👍🏽👍🏻👍🏽👍🏻
2026-08-20

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