Heavy-Duty HE400FG Turbocharger for 6LTAA9.3 & 6CT (8.3L/9.3L)
| Turbo Model | HE400FG Turbo |
|---|---|
| Part Number | 781591, 3596613, 3599424, 4037480, 4038424, 4038429H, 4040844, 4046127, 4046132H, 4046132HX, 4089965NX, 4089965RX, 4051109, 4038429, 4089965, 3595508, 3596614, 3596622, 3596623, 3599425, 3781592, 4025321, 4037481, 4037482, 4040845, 4040846, 4046131, 4046132, 4089768, 4090042, 6742-81-1120, 6742811120, 6742-81-8111, 6742818111, 4051110 |
| OE Number | 781591, 3596613, 3599424, 4037480, 4038424, 4038429H, 4040844, 4046127, 4046132H, 4046132HX, 4089965NX, 4089965RX, 4051109, 4038429, 4089965, 3595508, 3596614, 3596622, 3596623, 3599425, 3781592, 4025321, 4037481, 4037482, 4040845, 4040846, 4046131, 4046132, 4089768, 4090042, 6742-81-1120, 6742811120, 6742-81-8111, 6742818111, 4051110 |
| Application | For Excavator 6LTAA9.3 Engine |
| Engine Model | 6LTAA9.3 Engine |
| Brand | Carrier |
| Quality | 100% Tested High-Quality ISO 9001 & IATF 16949 certified |
| Type | K18 |
| Material | Alloy |
| Fuel | Diesel Engine |

Q1: How do I verify fitment for my machine?
Please check the nameplate on your old turbo for the part number 3781591 or the reference 6742-81-1120. This unit is the standard OEM-spec replacement for the 6LTAA9.3 engine.
Q2: Is this a complete turbocharger unit?
Yes, our HE400FG is supplied as a 100% complete assembly, including the wastegate actuator pre-set to factory boost specifications. It is ready for immediate "bolt-on" installation.
Q3: What causes premature failure on the 6LTAA9.3 turbo?
Common causes include oil contamination and "hot shutdowns" without a cool-down period. We strongly recommend replacing the Oil Feed Line and air filter during installation to ensure long-term performance.
Q4: Is this an "Outright Purchase" or a Reman unit?
This is a 100% Brand-New Outright Purchase. No core charge is required, saving you thousands in international shipping and core management fees typical of heavy-duty industrial components.
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.
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.

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