Description
The Comp Turbo CT4RX-6875 Triplex Ceramic Ball Bearing Oil-Less Water-Cooled Turbocharger is engineered for extreme high-horsepower applications requiring massive airflow, fast response, and dependable thermal control. Rated for up to 1300 horsepower, this turbocharger eliminates traditional oil feed and return lines while retaining efficient water cooling to ensure stable performance under sustained high-boost and high-temperature conditions.
At the core of the CT4RX-6875 is Comp Turbo’s patented Triplex Ceramic Ball Bearing oil-less system, delivering ultra-smooth operation, reduced friction, and rapid spool characteristics. The lightweight billet aluminum center section, paired with a large-frame compressor and turbine wheel combination, makes this turbocharger ideal for aggressive street builds, track-focused vehicles, and competitive motorsport applications.
Designed for long-term performance growth, the CT4RX-6875 is fully rebuildable and upgradeable, allowing it to support evolving power goals. Multiple turbine inlet housing options and flexible mounting capability make it adaptable to a wide range of high-performance turbo system configurations.
Key Features
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Patented Triplex Ceramic Ball Bearing oil-less water-cooled system
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Eliminates traditional oil feed and return lines
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Fast spool with smooth, consistent operation
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Designed for high-performance street, track, and motorsport use
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Recommended for engine bay, mid-mount, and remote-mount turbo systems
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Lightweight billet aluminum center section
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CTRX Ultra Slim Hub 7+7 compressor wheel
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High-flow 9-bladed turbine wheel
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Standard rotation configuration
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Available with T4 or V-Band turbine inlet housings
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Fully rebuildable and upgradeable construction
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Water-cooled bearing housing with 3/8 NPT female inlet and outlet ports
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Integrated maintenance grease fitting
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Supports horizontal and vertical mounting orientations
Power & Engine Fitment Specifications
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Minimum horsepower rating: 500 HP
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Maximum horsepower rating: 1300 HP
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Minimum engine displacement: 2.0 liters
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Maximum engine displacement: 5.0 liters
Compressor Housing Specifications
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Compressor inlet diameter: 4 inches
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Compressor outlet diameter: 2.5 inches
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A/R ratio: 0.70
Compressor Wheel Specifications
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Compressor inducer diameter: 68 mm
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Compressor major diameter: 93 mm
Turbine Wheel Specifications
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Turbine inducer diameter: 82 mm
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Turbine exducer diameter: 75 mm
Recommended Service Interval
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Normal street use: Apply 8 pumps of grease every 3,000 miles
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Extreme street use: Apply 8 pumps of grease every 1,500 miles
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Extreme drag race use: Apply 8 pumps of grease prior to each race event
Warranty Information
2-Year Comp Turbo Warranty
All Comp Turbo turbochargers are backed by a comprehensive 2-year warranty against defects in materials and workmanship.
Warranty Coverage
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Defects in materials and workmanship
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Repair or replacement of the turbocharger at no additional cost during the warranty period
Warranty Terms
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Warranty valid for two years from the date of purchase
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Applies to turbochargers operated and maintained according to Comp Turbo service and operation guidelines
With Comp Turbo’s 2-year warranty, power, durability, and confidence are built in.
To ensure the highest quality, Comp Turbo kits are built to order. Most orders will take 3-5 weeks to ship but some kits can take longer. Once you place your order, the order will not be cancellable for any reason.
