729503-53100 Mechanical Diesel Injector Assembly Compatible with Yanmar 3TNE84/3TNE88/4TNE84/4TNE88 Engines and Komatsu PC30-7/PC30MR-1 Excavators

Specifications:
OE Part Number 729503-53100, Yanmar mechanical fuel injector, standard mounting dimensions, direct replacement for original equipment without modification, fully compatible with the fuel system calibration parameters of the 3TNE/4TNE series engines.

Compatible Models:
Compatible with Yanmar 3TNE84, 3TNE88, 4TNE84, and 4TNE88 diesel engines; compatible equipment includes Komatsu PC25-1, PC30-7, and PC30MR-1 compact excavators, as well as Yanmar-powered forklifts, skid-steer loaders, marine engines, and generator sets.

Materials and Manufacturing:
The valve body is machined from high-quality materials, and the needle valve pair is precision-matched and ground. It withstands high temperatures and pressures, resists corrosion from low-quality diesel fuel, and is designed to withstand the harsh operating conditions of small construction machinery, such as high dust levels and frequent start-stop cycles on construction sites.

Repair and Replacement:
Replaces original injectors with poor atomization or those that are worn and stuck, resolving issues such as difficult cold starts, idling vibrations, black exhaust smoke, high fuel consumption, and insufficient power. These are essential maintenance and repair parts for small construction machinery repair shops.

Stringent Quality Control:
The product undergoes comprehensive bench testing for injection pressure, atomization performance, and sealing integrity, with performance meeting original equipment manufacturer (OEM) standards. We support both individual purchases and bulk orders from repair shops.

Warranty: 6 months
Note: If you have any questions, please feel free to contact us for assistance.
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