S300A113 Turbo 173526 631GC5172M3 Turbocharger for Mack IEGR Truck With E7 12.L Engine

S300A113 Turbo 173526 for Mack E7 12.0L IEGR Truck | OEM 631GC5172M

Product Overview

Premium S300A113 replacement turbocharger for Mack IEGR trucks with E7 12.0L engines. Direct fit for 173526, 631GC5172M series. ISO 9001 & IATF 16949 certified. Shop heavy-duty turbos now.

Heavy-Duty S300A113 Turbocharger for Mack E7 12.0L IEGR Engines

• Direct OEM Replacement: Specifically engineered for a 1:1 "drop-in" fit for Mack E7 12.0L diesel engines with Internal Exhaust Gas Recirculation (IEGR), ensuring a seamless installation for heavy-duty vocational and highway trucks.
• Built for Heavy Hauling: Optimized to provide superior boost pressure and airflow, restoring the original horsepower and fuel efficiency of your Mack powertrain under maximum payload conditions.
• Superior Heat Resistance: Equipped with a premium K18 Nickel-Alloy Turbine Wheel, providing exceptional structural integrity and preventing blade creep under the intense thermal loads of IEGR operations.
• Precision VSR Balancing: 100% dynamic balancing tested at 150,000+ RPM to ensure ultra-smooth operation, zero vibration, and maximum bearing life for long-haul reliability.
• Factory Direct Quality: Manufactured by Zhongke Turbo with nearly 30 years of manufacturing excellence (ISO 9001 & IATF 16949 Certified).

Technical Specifications & OEM Cross-Reference

Applications

• Mack Trucks: Vocational and over-the-road trucks equipped with E7 engine platforms.
• Engine Series: Mack E7 12.0L (IEGR configured) Diesel engines.
• Other Equipment: Compatible with various commercial vehicles utilizing the S300A113 turbo configuration for heavy-duty transport.
• BorgWarner Numbers: 173524, 173525, 173526, 173527, 173528, 173529 
• Mack OEM Numbers: 631GC5172M3, 631GC5172AM3X, 631GC5172AM7X, 631GC5172M8, 631GC5172AM8X

FAQs

Q1: How do I verify if this S300A113 turbocharger fits my Mack truck? 

Please check the nameplate on your current turbocharger for the part number 173526 or the Mack number 631GC5172M3. Since Mack E7 engines have specific builds for different years, confirming these numbers is essential. If you are unsure, provide your Engine Serial Number to our support team for a free fitment audit.

Q2: Is this turbocharger compatible with IEGR emission systems? 

Yes. This S300A113 model is specifically designed for the Mack E7 IEGR engines. It matches the original factory flow characteristics required for proper EGR operation and boost control.

Q3: What makes Zhongke’s turbos reliable for long-haul trucking? 

Downtime is costly. We use genuine K18 nickel-alloy wheels and perform VSR high-speed balancing to ensure our turbochargers can handle the constant stress of long-distance hauling without premature bearing failure.

Q4: What type of warranty do you provide for heavy-duty commercial use? 

As a direct manufacturer with nearly 30 years of experience, we stand behind our quality and provide full technical support for truck owners and fleet managers worldwide.

Q5: Do you provide worldwide shipping? What is the delivery timeframe? 

We ship globally via premium carriers like DHL, FedEx, and UPS, as well as sea freight for bulk orders. In-stock items are typically dispatched within 24–48 hours. Express delivery to North America and Europe usually takes 5–7 business days.

About Us

Fengcheng Zhongke Turbocharger Co., Ltd. is a leading high-tech factory specializing in the R&D, production, and global distribution of high-performance turbochargers. Based in Fengcheng—one of the world’s most renowned turbocharger manufacturing hubs—we have grown from a local workshop into a global supplier, serving heavy-duty, commercial, and passenger vehicle markets worldwide.

At Zhongke, we don't just "make" parts.we engineer reliability.

• Material Integrity: We exclusively use K18 Nickel-Alloy turbine wheels, capable of withstanding extreme exhaust temperatures (up to 950°C) without deformation.
• Dynamic Balancing: 100% of our turbochargers undergo high-speed dynamic balancing tests at 150,000+ RPM to guarantee zero vibration and extended bearing life.
• Certified Quality: Our production processes are certified under ISO 9001 and IATF 16949, the gold standards for the global automotive and heavy-machinery industries.

Manufacturing Prowess:Our facility is equipped with state-of-the-art production lines, including precision 5-Axis CNC machining centers, high-speed VSR (Vibration Sorting Rig) balancing machines, and advanced material testing labs.

Our Specialization:We maintain a vast inventory of over 3,500+ turbocharger models, with a focus on heavy-duty and construction machinery engines, including Cummins, Caterpillar, Komatsu, Scania, Kobelco, and Hitachi. Beyond heavy-duty machinery, we also provide a comprehensive range of turbochargers for passenger vehicles and light commercial vans. Our catalog covers over 1,000 applications for leading automotive brands including Nissan, Audi, BMW, Mercedes-Benz, Toyota, Honda, and Hyundai. Focused on optimizing fuel efficiency and restoring factory horsepower, our passenger car turbos are engineered with the same precision and K18 heat-resistant materials as our industrial line, ensuring reliable performance for daily commuting and high-speed driving alike.

Global Partnership & Support: Zhongke Turbo is more than just a manufacturer; we are your long-term technical partner. With nearly 30 years of export experience, we understand the logistics and technical requirements of the international market. We provide a warranty and dedicated technical support to help our partners succeed.

• Key Export Regions: North America, Europe, the Middle East, Africa, Latin America, and Southeast Asia.

Experience the difference of nearly 30 years of factory expertise. Contact us today for wholesale inquiries or technical consultations.