4LF302 Turbocharger For Caterpillar Earth Moving D398B with 3306 3306B D398B Engine
Part Number: 315792 183200 7N2515 0R5804
Meta Title (SEO-Optimized)
4LF302 Turbocharger 315792 7N2515 0R5804 for CAT D398B | Fits 3306 / 3306B Engines | Heavy Equipment Turbo
Meta Description
High-performance 4LF302 Turbocharger (315792 / 183200 / 7N2515 / 0R5804) for Caterpillar D398B, 3306 & 3306B engines. Durable, OEM-grade replacement for earth-moving machinery. Ideal for repair shops, fleet owners & contractors.
Product Overview
The 4LF302 Turbocharger (Part Numbers 315792 / 183200 / 7N2515 / 0R5804) is a high-quality, OEM-grade replacement turbo designed for Caterpillar earth-moving machinery equipped with D398B, 3306, and 3306B engines. Built for extreme durability and maximum air delivery, this turbocharger restores lost power, reduces fuel consumption, and ensures reliable performance in demanding construction, mining, and industrial environments.
If your CAT machine is losing power, smoking, overheating, or struggling under heavy loads, this 4LF302 turbo is the ideal solution to bring your engine back to full strength.
Who Is This Turbocharger For?
This product is ideal for:
- Heavy equipment repair shops & turbo rebuilders
- Mining and construction contractors
- Equipment rental companies & fleet managers
- Owners of Caterpillar machinery with 3306 / 3306B or D398B engines
- Operators experiencing loss of power, slow acceleration, heavy smoke, or high fuel usage
What Problems Does This Turbo Solve?
- Restores engine power and torque
- Reduces black or blue smoke caused by worn turbo bearings
- Improves fuel efficiency
- Eliminates boost lag and slow throttle response
- Prevents engine overheating under heavy load
- Extends the life of your Caterpillar engine
- Ensures stable performance in harsh working environments (dust, heat, heavy load)
Key Features & Benefits
1. OEM-Grade Quality
Built with high-precision turbine wheels, high-temperature bearings, and premium compressor housings.
2. Perfect Fitment
Direct replacement for CAT part numbers:
315792 / 183200 / 7N2515 / 0R5804
3. Increased Airflow Efficiency
Advanced turbine design delivers faster spool-up and sustained boost pressure.
4. Heavy-Duty Durability
Engineered for continuous operation in mining, construction, and industrial applications.
5. Fuel Cost Savings
Better combustion = lower fuel consumption = long-term operating cost reduction.
6. Improved Engine Lifespan
Reduces engine stress and carbon buildup.
Compatible Engines & Equipment
Engine Models:
- CAT 3306
- CAT 3306B
- CAT D398B
Earth-Moving & Industrial Applications:
- Wheel Loaders
- Dozers
- Excavators
- Mining Machinery
- Oil & Gas Equipment
- Marine Power Units
- Industrial Generators
- Earth-Moving Power Modules
Technical Specifications
| Turbo | Description |
|---|---|
| Turbo Model | 4LF302 Turbocharger |
| Part Numbers | 315792 / 183200 / 7N2515 / 0R5804 |
| Engine Type | CAT 3306 / 3306B / D398B |
| Cooling | Oil-Cooled |
| Material | High-strength cast iron & aluminum alloy |
| Application | Earth-moving, industrial, mining |
| Condition | 100% brand new (not reman) |
| Warranty | 6 months |
Usage Scenarios
- Construction sites requiring heavy continuous load
- Mining operations in dusty, harsh environments
- Long-running generator sets
- Earth-moving projects needing high torque
- Fleet maintenance to ensure uptime
- Emergency engine overhaul to resume operations quickly
Installation Guide (Step-by-Step)
Tools Needed
- Basic hand tools
- Torque wrench
- Oil and filter kit
- Cleaning solvent
Steps
-
Turn off engine & cool completely.
-
Remove old turbo and inspect oil feed line for blockage.
-
Flush the oil supply system to avoid contamination.
-
Install oil gasket and mount new turbo securely.
-
Tighten bolts to manufacturer torque specs.
-
Prime turbo with clean engine oil before first startup.
-
Start engine and idle for 3–5 minutes to stabilize oil flow.
-
Check boost pressure and inspect for leaks.
Troubleshooting & Tips
Low Boost Pressure?
- Check air filters
- Inspect intercooler for leaks
- Ensure exhaust manifold is sealed
Excessive Smoke?
- Possible oil leakage — inspect oil return line
- Check turbo seals & crankcase ventilation
Whining Noise?
- Loose clamps
- Damaged turbine blades
- Insufficient lubrication
FAQ (Frequently Asked Questions)
Q1: Is this turbocharger brand new or rebuilt?
A: 100% brand new — not refurbished or remanufactured.
Q2: Can I install this turbo myself?
A: Yes, if you have mechanical experience; otherwise, we recommend a certified technician.
Q3: Is it compatible with all 3306 engines?
A: Fits most 3306 & 3306B, but we recommend checking your OEM part number (315792, 183200, 7N2515, or 0R5804).
Q4: What warranty do you provide?
A: 12-month warranty against manufacturing defects.
Q5: Do you offer bulk order discounts?
A: Yes — contact our sales team for wholesale pricing.
About Us
We are Fengcheng Zhongke Turbocharger Co., Ltd, a professional turbocharger manufacturer and supplier based in China, specializing in Caterpillar, Cummins, Komatsu, Volvo, Hino, and heavy-duty industrial turbo systems.
With 25 years of experience, we serve global customers in mining, construction, marine, trucking, and agricultural sectors.
Our mission is to provide quality, reliability, and high-performance turbochargers at factory-direct prices.
Meet Our Team
- R&D Engineers with extensive experience in OEM turbo design
- Quality Control Specialists ensuring every unit meets global standards
- Sales & Support Team offering fast communication and technical assistance
- After-Sales Team providing installation support and troubleshooting
We work together to deliver premium turbocharger solutions with professional support you can trust.
Why Choose Us?
Factory Direct
Save cost with no middleman markup.
Strict Quality Control
100% inspection — balancing test, pressure test, performance test.
Fast Global Shipping
Delivered to Asia, Africa, Europe, South America, Middle East.
Strong Technical Support
Professional engineers available for consultation.
Long-Term Partnership
Stable supply for distributors, repair shops, and fleet owners.


















