CAT 3116 fuel injector pump 112-4057 4P-5728 4P-5727 141-7869 3116 engine parts excavator fuel pump hydraulic oil pump

◆ Product Overview
A critical OEM-grade fuel injection and hydraulic supply pump assembly designed for the Caterpillar 3116 diesel engine, commonly used in various excavator models. This direct replacement part is compatible with a range of part numbers including 112-4057, 4P-5728, 4P-5727, 141-7869, 141-1238, and 10R-1205. It ensures precise fuel delivery, optimal lubrication/hydraulic pressure, and restores the engine's power, efficiency, and reliability for demanding earthmoving operations.

◆ OEM Part Numbers
✓ 112-4057
✓ 4P-5728 / 4P-5727
✓ 141-7869 / 141-1238
✓ 10R-1205

◆ Compatible Engine & Application
✓ Caterpillar 3116 Diesel Engine
✓ Excavators and heavy equipment powered by the CAT 3116 engine.

◆ Product Specifications
✓ Condition: 100% New or Premium Remanufactured (As Specified)
✓ Type: Combination Hydraulic/Fuel Injection Pump Assembly
✓ Application: Excavator & Industrial Diesel Engine
✓ Function: Delivers high-pressure fuel for injection and may also supply hydraulic pressure for governor or other engine systems.

◆ Key Features
✓ Direct CAT 3116 Replacement: Exact interchange for the listed part numbers, ensuring perfect compatibility.
✓ Dual-Function Design: Integrates critical fuel and hydraulic/oil pumping functions into one reliable unit.
✓ Precision Performance: Restores exact fuel delivery and system pressure for optimal engine operation.
✓ Rugged Construction: Built to withstand the high-pressure, high-vibration environment of heavy equipment.

◆ Quality Assurance
✓ Comprehensive Bench Testing: Each pump is tested for fuel delivery rates, hydraulic pressure output, and overall functional integrity.
✓ Leak & Pressure Testing: All circuits and seals are validated to prevent internal or external leakage.
✓ Calibration Verified: Set to meet Caterpillar's original specifications for engine performance and reliability.

◆ Installation Applications
✓ Complete replacement of a failed or underperforming pump on a CAT 3116 engine in an excavator.
✓ Major repair for engines experiencing both fuel delivery and hydraulic/govemor system issues.
✓ Overhaul during engine rebuild to ensure all critical pump functions are restored.
✓ Preventive maintenance to avoid unexpected machine downtime.

◆ Service Advantages
✓ Solves Complex Problems: Addresses issues in both fuel and auxiliary hydraulic systems with one component.
✓ Restores Full Engine Function: Critical for proper engine governing, injection timing, and overall performance.
✓ Protects Your Investment: Proper operation of this pump is vital for the longevity of the 3116 engine.
✓ Reduces Diagnostic Uncertainty: Replacing this integrated assembly can resolve multiple symptom causes at once.