Yanmar fuel injection pump 0445020509 129A00-51000 3TNV86 fuel pump 4TNV86 diesel engine pump Yanmar engine parts 3TNV88 fuel pump

◆ Product Overview
A high-precision fuel injection pump designed for Yanmar 3TNV and 4TNV series compact diesel engines, including models 3TNV86, 3TNV88, and 4TNV86. This direct OEM replacement is compatible with part numbers 0445020509, 129A00-51000, 129A0051000, 02C2N4536, 12643002, and 32K6107900. It ensures accurate fuel metering, optimal combustion, and reliable performance in a wide range of compact equipment such as excavators, generators, and agricultural machinery.

◆ OEM Part Numbers
✓ 0445020509
✓ 129A00-51000 / 129A0051000
✓ 02C2N4536
✓ 12643002
✓ 32K6107900

◆ Compatible Engine Series
✓ Yanmar 3TNV86 Engine
✓ Yanmar 3TNV88 Engine
✓ Yanmar 4TNV86 Engine

◆ Product Specifications
✓ Condition: 100% New or Premium Remanufactured (As Specified)
✓ Type: In-Line or Rotary Fuel Injection Pump (As per OEM Design)
✓ Application: Compact Industrial & Agricultural Diesel Engines
✓ Calibration: Pre-set to Yanmar factory specifications for fuel delivery, timing, and pressure.

◆ Key Features
✓ Direct OEM Replacement: Exact fit and function for seamless integration into 3TNV/4TNV series engines.
✓ Precision Fuel Delivery: Ensures correct injection timing and quantity for maximum engine efficiency, power, and smooth operation.
✓ Compact & Durable Design: Built to Yanmar's renowned standards for reliability in tight spaces and demanding conditions.
✓ Performance Restoration: Effectively resolves engine issues such as hard starting, power loss, excessive smoke, and uneven running.

◆ Quality Assurance
✓ Performance Tested: Each unit is bench-tested to verify correct flow rates and pressure output.
✓ Leak & Pressure Integrity Tested: All seals and internal components are validated for reliability.
✓ Calibration Certified: Set to meet Yanmar’s original equipment standards for performance and emissions.

◆ Installation Applications
✓ Replacement of a failed, leaking, or underperforming injection pump on Yanmar 3TNV86/88 or 4TNV86 engines.
✓ Overhaul of the fuel system in compact excavators, skid steers, trenchers, and generators.
✓ Correction of performance issues in agricultural equipment like tractors and pumps.
✓ Preventive maintenance to ensure reliable operation and avoid downtime.

◆ Service Advantages
✓ Restores Engine Reliability: Returns compact equipment to dependable, day-to-day operation.
✓ Optimizes Fuel Efficiency: Precise fuel delivery maximizes combustion and reduces operating costs.
✓ Wide Application Coverage: A single pump serves multiple engine models across Yanmar's popular compact series.
✓ Ensures Quick Service Turnaround: Direct fitment allows for efficient repair and maintenance.