4TNE98 Fuel Injector Assembly 129931-53000 119717-53001 119717-53000 for Yanmar Diesel Engine Parts

Product Details

Product Overview

This high-quality Fuel Injector Assembly is a direct replacement component engineered for Yanmar diesel engines, specifically the widely-used 4TNE98 model series. Designed to meet or exceed OEM specifications, this injector is a critical part of the engine’s fuel delivery system, ensuring precise fuel atomization for optimal combustion efficiency, power output, and reduced emissions.

Identified by the key part numbers 129931-53000, 119717-53001, and 119717-53000, this injector is commonly utilized in a diverse range of heavy equipment applications. From construction machinery and agricultural tractors to industrial power units, generator sets, and marine propulsion systems, it provides the reliable performance required for demanding work environments. This part is an ideal solution for maintenance, repair, and overhaul (MRO) operations seeking a cost-effective, high-performance alternative to original equipment parts.

Key Features & Benefits

• OEM Specification Compliance: Manufactured to match the exact dimensions, tolerances, and performance characteristics of the original Yanmar injector, ensuring a direct, hassle-free installation without modifications.
• Precision Fuel Delivery: Features precisely machined internal components that deliver a consistent, high-pressure fuel spray pattern for superior atomization, leading to more complete combustion and enhanced engine efficiency.
• Enhanced Durability: Constructed from high-grade alloy steel and hardened materials, providing exceptional resistance to wear, erosion, and the thermal stresses associated with high-pressure diesel injection.
• Improved Engine Performance: Restores or enhances engine power, throttle response, and smooth operation by replacing worn or clogged injectors that can cause misfiring, rough idling, and power loss.
• Reduced Emissions & Fuel Consumption: Optimized spray pattern promotes cleaner burning, which can lower harmful exhaust emissions (NOx and soot) and improve overall fuel economy, lowering operational costs.
• Rigorous Quality Testing: Each injector undergoes strict inspection procedures, including pressure and spray pattern testing, to guarantee it meets performance standards before leaving the factory.
• Comprehensive Application Range: Suitable for a wide array of heavy machinery, from excavators and loaders to tractors and marine gensets, making it a versatile stock item for parts distributors and fleet managers.

Technical Specifications

OEM Cross-Reference

This Fuel Injector Assembly is a direct cross-reference for the following original Yanmar part numbers. It is designed to be a perfect 1:1 replacement, ensuring compatibility and performance match.

• 129931-53000 (Primary Reference)
• 119717-53001 (Superseded/Alternate Number)
• 119717-53000 (Superseded/Alternate Number)

Compatibility

This injector is specifically designed for the Yanmar 4TNE98 diesel engine. This engine platform is commonly used for powering a wide variety of equipment, including:

• Construction Machinery: Mini excavators, compact track loaders, skid steer loaders, and backhoes.
• Agricultural Equipment: Tractors, harvesters, tillers, and sprayers.
• Industrial Power Units: Generators (Gensets), compressors, pumps, and welders.
• Material Handling: Forklifts, telehandlers, and aerial work platforms.
• Marine Applications: Auxiliary engines for small vessels and generator sets.

Note: While this injector is engineered for the 4TNE98 engine, we recommend verifying your engine’s specific model code and the existing part number on your injector to ensure a perfect match before purchase.

Global Supply & Distribution

We offer efficient worldwide shipping to meet the urgent demands of the global B2B market. Our logistics network supports fast, reliable delivery to major industrial hubs and ports across all continents.

• North America: Fast shipping to the USA, Canada, and Mexico via major ports like Los Angeles, Houston, and Vancouver.
• Europe: Direct delivery to industrial centers in Germany, the UK, Netherlands, France, and Poland via Rotterdam and Hamburg.
• Asia-Pacific: Rapid distribution to Australia, Japan, Singapore, South Korea, and Southeast Asian markets.
• Middle East & Africa: Serving key markets including UAE (Dubai), Saudi Arabia, South Africa, and Kenya.
• South America: Reliable shipping to Brazil, Argentina, Chile, and Colombia.

We have extensive export experience and ensure all documentation and customs compliance are handled professionally to facilitate a smooth transaction for our international clients.

Quality Assurance

We are committed to providing parts that deliver reliable performance and long service life. Our quality assurance process is rigorous and transparent.

• Manufacturing Standards: Parts are produced in ISO-certified facilities following strict quality control procedures.
• Testing: Each injector is individually tested for correct opening pressure, spray pattern, and leak-tightness. A Machinery Test Report is available upon request.
• Inspection: Video Outgoing Inspection is provided to confirm the condition and packaging of your order before shipment.
• Warranty: We provide a standard 6-month warranty against manufacturing defects. After Warranty Service includes online technical support to assist with any issues.

FAQ

Q1: How can I confirm this injector will fit my Yanmar 4TNE98 engine?
A: The injectors with part numbers 129931-53000, 119717-53001, and 119717-53000 are the standard OEM injectors for the 4TNE98 engine. To be absolutely certain, please check the part number stamped directly on your old injector. If it matches any of the numbers listed, this part is the correct replacement. If your part number is different, please contact our support team with your engine model and injector number for verification.

Q2: What are the symptoms of a faulty injector that needs replacement?
A: Common symptoms of a failing or clogged injector include: rough idling or engine misfire, excessive exhaust smoke (black or white), a noticeable decrease in engine power and fuel efficiency, hard starting, and engine knocking or pinging sounds. Replacing worn injectors as a set is often recommended to ensure balanced performance across all cylinders.

Q3: What is the recommended installation procedure for this injector?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: 1) Cleaning the injector bore in the cylinder head thoroughly. 2) Replacing the copper sealing washer and heat shield (if applicable) with new ones. 3) Torquing the injector hold-down clamp or nut to the manufacturer’s specified torque setting (typically found in the Yanmar service manual). 4) Bleeding the fuel system of air before starting the engine. Incorrect installation can lead to poor performance or engine damage.