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Air and Fuel› Superchargers, Turbochargers and Components

KC Turbos

KC300x G3 Stage 3 Turbo

Name: KC300x G3 Stage 3 Turbo
Brand: KC Turbos
SKU: 302615

$3,090.00 $1,542.30 Save $1,547.70

SKU: 302615

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Overview

The KC Turbos KC300x G3 Stage 3 Turbo is a redesigned turbocharger for the 7.3 Powerstroke engine. It features a Gen 3 SXE style compressor wheel with upgraded aero and a redesigned journal bearing with 200% larger thrust bearings. This turbo also includes redesigned compressor and turbine housings for improved spool and airflow.

Designed as a 100% drop-in replacement, this turbo supports up to 250cc/100% injectors. It comes with all necessary gaskets and O-rings for installation, as well as an upgraded 4-inch intake boot.

Show original supplier description

The KC Turbos KC300x G3 Stage 3 Turbo is engineered to enhance the performance of the 7.3 Powerstroke engine, specifically for L99-03 models. This turbocharger incorporates a redesigned Gen 3 7x7 SXE-style compressor wheel with advanced aerodynamics and extended tip technology for quicker spool and increased airflow. It also features a thick shaft SXE-style turbine wheel housed within redesigned compressor and turbine housings. Key enhancements include a ported 0.70 AR compressor cover with an improved MAP groove, anti-surge ring, and volute shape, alongside a redesigned 0.91 AR turbine housing. This radical redesign offers faster spooling and more top-end power compared to previous versions. The turbo utilizes a redesigned journal bearing system with 200% larger thrust bearings and thicker turbine shaft to accommodate higher boost and horsepower levels, ensuring improved reliability and stability. This turbo is designed as a 100% drop-in unit, requiring no modifications for installation in 7.3 Powerstroke pick-up trucks. It comes complete with all necessary gaskets and O-rings, plus an upgraded 4-inch intake boot for better fitment. While designed for pick-up trucks, installation in 7.3-equipped vans will require modifications to the turbo intake boot and down-pipe. This turbocharger will not fit OBS or E99 trucks without modification. KC Turbos cannot guarantee fitment with all variations of aftermarket parts, including fuel systems, plenums, and piping kits.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

Brand	KC Turbos
Part Number	302615
Category	Air and Fuel

Videos

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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