Maximize engine performance with the Caterpillar C13 high-pressure turbo assembly OEM 20R1175, a precision-engineered turbocharger designed for CAT C13 ACERT 12.5L diesel engines (2008–2011). This 20R1175 turbocharger serves as the high-pressure unit in a twin-turbo system, working alongside the low-pressure turbo to deliver superior boost and optimized combustion efficiency.
The Caterpillar C13 twin turbo system ensures improved airflow, faster throttle response, and increased engine output. The high-pressure turbo 20R1175 compresses air at higher levels, enabling maximum power, enhanced torque, and improved fuel efficiency under heavy-load conditions.
Manufactured to OEM specifications, the OEM 20R1175 turbo guarantees precise fitment and long-lasting durability. Built with high-quality materials, this CAT C13 high-pressure turbocharger withstands extreme temperatures and demanding applications. Its direct bolt-on design allows for easy installation, making it the ideal replacement for restoring peak engine performance.
Key Features & Benefits
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OEM-quality 20R1175 high-pressure turbocharger
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Designed for Caterpillar C13 ACERT twin-turbo systems (2008–2011)
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Delivers maximum boost pressure and engine power
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Improves fuel efficiency and reduces emissions
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Works with low-pressure turbo for optimized performance
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Heavy-duty construction for extended durability
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Resistant to extreme heat and operating conditions
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Direct bolt-on installation (OEM fitment)
Engine Compatibility
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Caterpillar C13 ACERT 12.5L Diesel Engine (2008–2011)
Vehicle Applications
Compatible with a wide range of Caterpillar-powered equipment, including:
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Heavy-duty CAT trucks and highway vehicles
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Construction and earthmoving machinery
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Industrial engines and generator sets
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Off-highway and vocational applications
Additional Information
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Part Number: 20R1175
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Engine Type: C13 ACERT
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Engine Size: 12.5L
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Fuel Type: Diesel
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Turbo Type: High-Pressure Turbo (Twin-Turbo System)
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Cooling Type: Oil-cooled
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Condition: New / OEM Replacement
Frequently Asked Questions
1. What is OEM part number 20R1175?
OEM 20R1175 is a high-pressure turbocharger designed for Caterpillar C13 ACERT engines in a twin-turbo configuration.
2. What does a high-pressure turbo do?
The high-pressure turbo compresses air to higher boost levels after the low-pressure turbo, increasing engine power and efficiency.
3. Is this turbo a direct replacement?
Yes, this turbo is built to OEM specifications for direct installation.
4. What engines are compatible?
This turbo fits Caterpillar C13 ACERT diesel engines from 2008 to 2011.
5. Can this turbo be used alone?
No, this turbo is part of a twin-turbo system and must be used with the corresponding low-pressure turbo.




