Cummins Turbocharger SCHWITZER 4LGZ (Part Numbers: 312043, 3525148) | Growshine International
| Turbo Kit Incomplete | |
| Assembly Number Incomplete | |
| Turbo Kit Complete# | |
| Order Number Incomplete | Not Available |
| OEM Angle Compressor | |
| OEM Angle Turbine |
| Assembly | 3525148 |
| Kits Available | Not Available |
| Latest Supersession | Not Available |
| Model | 4LGZ |
| OEM Customer# | 257747 |
| OEM Supplied# | 312043 |
| Status | Obsolete |
| Turbocharger Make | SCHWITZER |
| Compressor | |
| Turbine (mm) |
Premium replacement turbocharger for Cummins engines in heavy equipment, trucks, and agricultural machinery
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Growshine International presents the high-performance Cummins turbocharger SCHWITZER 4LGZ model, available with part numbers 312043 and 3525148 (also written as 312043 and 3525148 without hyphens). This premium turbocharger is designed for optimal performance in demanding heavy equipment applications.
312043 (312043)
3525148 (3525148)
This SCHWITZER 4LGZ turbocharger is compatible with various Cummins engine models found in construction equipment, heavy trucks, and agricultural machinery. The turbocharger enhances engine efficiency and power output while meeting strict durability requirements.
The Cummins turbocharger SCHWITZER 4LGZ (312043, 3525148) is suitable for:
Cummins QSK19, QSK23, and QSK45 series engines
Heavy-duty trucks and commercial vehicles
Construction equipment including excavators, loaders, and bulldozers
Agricultural machinery such as tractors and harvesters
Mining equipment and power generation units
Model: SCHWITZER 4LGZ
Manufacturer: Cummins Turbo Technologies
Part Numbers: 312043, 3525148 (312043, 3525148)
Material: High-grade aluminum and steel alloys
Operating Temperature Range: -40°C to 200°C
Maximum RPM: 120,000
Pressure Ratio: 3.5:1
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Check 4JB1 Injector PartsFind the exact turbocharger parts you need for your equipment:
Explore our wide range of industrial and heavy equipment parts:
Growshine International offers parts for all major turbocharger brands:
Browse Turbocharger BrandsIncluding Garrett, Holset, BorgWarner, 3K, Schwitzer, IHI, Mitsubishi, Hitachi, CZ, Toyota, Komatsu, Bosch Mahle, and more.
Located between the upper and lower structures of excavators like the Komatsu PC300-8, this bearing allows 360-degree rotation. It's crucial for machine maneuverability.
Found in heavy trucks like Volvo FH16, this mechanism locks the differential to provide equal power to both wheels when traction is poor.
Central component in harvesters like John Deere S670 that separates grain from stalks through rotational beating action.
In machines like Caterpillar 950M, this fluid coupling transfers engine power to the transmission while multiplying torque.
Supports the track chain on dozers like Komatsu D65PX-18, reducing friction and wear between track links and frame.
Hydraulic cylinder on cranes like Liebherr LTM 1120 that controls the extension and retraction of the boom.
Power take-off shaft on tractors like New Holland T7.270 that transfers engine power to implements like mowers or balers.
Hydraulic cylinder on trucks like Kenworth T880 that raises and lowers the dump bed for material discharge.
Ring gear on motor graders like Caterpillar 140K that enables rotation of the blade circle for precise grading.
Heated plate on asphalt pavers like Volvo P6820C that compacts and shapes the asphalt mat before final rolling.
Symptoms: Hydraulic oil temperature exceeds normal operating range (above 82°C/180°F), reduced machine performance, potential system shutdown.
Possible Causes:
Contaminated hydraulic oil or incorrect viscosity
Clogged hydraulic oil cooler or radiator fins
Malfunctioning cooling fan or fan motor
Relief valves stuck open causing continuous flow
Pump internal leakage causing excessive heat generation
Diagnosis and Repair:
Check hydraulic oil level and condition - replace if contaminated or degraded
Inspect and clean oil cooler and radiator fins - remove debris buildup
Test cooling fan operation - replace fan motor if not functioning properly
Check system pressure and relief valve settings - adjust or replace as needed
Measure pump case drain flow - excessive flow indicates internal wear
Preventive Measures: Regular hydraulic oil and filter changes, keep cooling components clean, monitor system temperatures during operation.
Turbochargers like the Cummins SCHWITZER 4LGZ (312043, 3525148) are forced induction devices that increase engine efficiency and power output by compressing air entering the combustion chamber. Key components include:
Turbine Wheel: Driven by exhaust gases, converts waste energy into rotational force
Compressor Wheel: Draws in and compresses ambient air for combustion
Center Housing: Contains bearings and lubrication system for shaft rotation
Wastegate: Regulates boost pressure to prevent overboost conditions
VGT Mechanism: (Variable Geometry Turbo) adjusts vane position for optimal performance across RPM range
Proper turbocharger maintenance includes regular oil changes, monitoring for unusual noises or vibrations, and checking for oil leaks at connections.
Growshine International specializes in the export of high-quality replacement parts for:
Construction machinery and heavy equipment
Commercial trucks and transportation vehicles
Agricultural machinery and farm equipment
Industrial engines and power systems
Our product range includes engine components, hydraulic parts, electrical systems, undercarriage parts, and more for brands like Caterpillar, Komatsu, Volvo, Cummins, John Deere, and other major manufacturers.
We combine extensive industry knowledge with strict quality control to deliver reliable parts that meet or exceed OEM specifications. Our global logistics network ensures timely delivery to customers worldwide.
Growshine International provides solutions for:
Cummins turbocharger replacement parts for heavy trucks
SCHWITZER 4LGZ turbocharger repair kit components
312043 turbocharger rebuild service for construction equipment
3525148 turbocharger core exchange program details
High-performance turbochargers for agricultural machinery
OEM-quality turbocharger parts for mining equipment
Turbocharger maintenance and troubleshooting guide
Aftermarket turbochargers with warranty coverage
Global shipping of heavy equipment spare parts
Technical support for turbocharger installation
Cost-effective alternatives to OEM turbochargers
Turbocharger upgrade options for improved efficiency
Bulk pricing for turbocharger parts distributors
Emergency turbocharger delivery services
Compatibility verification for turbocharger replacements
Turbocharger performance testing and validation
Custom turbocharger solutions for special applications
Comprehensive turbocharger product catalogs
Turbocharger installation guidelines and manuals
Preventive maintenance schedules for turbochargers
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