Zexel K336 Plunger 140163-4420 Fuel Injection Nozzle for Excavator Diesel Engine

Product Details

Product Overview

This premium Zexel Plunger K336 (Part Number: 140163-4420) is a genuine fuel injection component specifically designed for high-performance excavator diesel engines. As a critical element within the fuel injection system, this plunger ensures precise fuel metering and delivery, which is essential for maintaining optimal engine power, fuel efficiency, and emission compliance in heavy-duty construction equipment.

The component is engineered to exact OEM specifications, providing a direct replacement solution for excavator engines requiring the K336 model plunger. While most commonly associated with Japanese-engineered machinery, this part serves as a vital spare for various excavator applications where Zexel fuel injection systems are deployed. Each unit is manufactured to rigorous standards, ensuring reliable operation under the demanding conditions of construction and earthmoving sites.

Key Features & Benefits

• Genuine OEM Quality: Manufactured as a genuine Zexel component, guaranteeing precise fitment and original equipment performance standards for your excavator’s fuel injection system.
• Extended Service Life: Engineered for long-lasting durability, this plunger is designed to withstand high-pressure fuel injection cycles and resist wear, reducing the frequency of maintenance intervals.
• Enhanced Fuel Efficiency: The precision-machined plunger ensures accurate fuel metering, optimizing the air-fuel mixture for improved combustion efficiency and lower operational costs.
• Direct Fit Replacement: With part number 140163-4420 and model K336, this component offers a hassle-free installation process for qualified technicians, minimizing downtime for your excavator.
• Rigorous Quality Control: Each piece undergoes stringent testing to verify dimensional accuracy, surface finish, and material integrity, ensuring consistent performance in the field.
• 6-Month Warranty Coverage: Backed by a 6-month warranty and video technical support, providing buyers with confidence in their investment and after-sales assistance.

Technical Specifications

OEM Cross-Reference

This product is identified by the following OEM and reference numbers for cross-compatibility verification:

• Primary OEM Number: 140163-4420
• Model Reference: K336

Note: Always verify your existing part number against the 140163-4420 code before ordering to ensure correct compatibility.

Compatibility

This Plunger K336 (140163-4420) is commonly used for the following applications:

• Engine Type: Various diesel engines equipped with Zexel fuel injection systems
• Primary Application: Excavator machinery and heavy construction equipment
• System Fitment: Fuel injection pump assemblies requiring K336 specification plungers

Fitment is inferred based on the part number and model designation. We recommend consulting your engine or injection pump manual to confirm compatibility with your specific equipment.

Global Supply & Distribution

We offer worldwide shipping capabilities to meet the demands of international B2B buyers. Our distribution network ensures timely delivery to major markets including:

• North America: USA, Canada, Mexico
• Europe: UK, Germany, France, Netherlands, Italy
• Asia-Pacific: Japan, South Korea, China, Australia, Singapore
• Middle East & Africa: UAE, Saudi Arabia, South Africa, Egypt
• Latin America: Brazil, Chile, Argentina

With fast delivery to major ports and industrial centers, we support just-in-time inventory management for equipment dealers, repair shops, and fleet operators. Our export experience includes comprehensive trade documentation and customs compliance for smooth international transactions.

Quality Assurance

Each Zexel plunger is manufactured under strict quality control standards in Japan, ensuring adherence to original equipment specifications. The genuine condition of this part guarantees:

• Manufacturing Standards: ISO-certified production processes with precision tolerances
• Material Integrity: High-grade steel construction for wear resistance and longevity
• Testing Procedures: Dimensional checks and surface finish verification before shipment
• Warranty Coverage: 6-month warranty against manufacturing defects, with video technical support available after warranty period

FAQ

Q1: How can I verify that the 140163-4420 plunger fits my excavator’s injection pump?
A: First, locate the model number on your injection pump’s nameplate. If it references K336 or Zexel as the manufacturer, this plunger is likely compatible. Cross-reference your existing plunger’s part number with 140163-4420. For absolute certainty, provide your pump model and engine serial number to our technical support team, who can offer video-assisted verification.

Q2: What installation precautions should be taken when replacing this plunger?
A: Ensure the work area is extremely clean to prevent contamination of the fuel system. Lubricate the plunger with clean diesel fuel or assembly oil before installation. Use proper torque specifications when securing the component. After installation, prime the fuel system and check for leaks before starting the engine. Always follow the manufacturer’s service manual for your specific injection pump model.

Q3: What maintenance practices can extend the life of this Zexel plunger?
A: Regular fuel filter replacement is critical, as contaminated fuel accelerates plunger wear. Use high-quality diesel fuel with proper lubricity. Monitor fuel injection timing and pressure at recommended intervals. If the excavator shows symptoms like hard starting, reduced power, or excessive smoke, inspect the plunger and barrel assembly promptly. Using genuine Zexel parts ensures optimal compatibility and longevity within the injection system.