D722 Engine Piston with Pin 16851-21110 16851-21114 for Kubota Tractor Excavator

Product Details

Product Overview

This high-quality engine piston assembly, specifically designed for the Kubota D722 diesel engine, is a critical component for maintaining optimal combustion performance. The set includes the piston and its corresponding pin (part numbers 16851-21110 and 16851-21114), ensuring a complete replacement solution for your engine rebuild or repair.

Commonly used in Kubota tractors, excavators, and other compact machinery, this piston is manufactured to meet or exceed OEM specifications. It provides the precise fit and durability required for demanding agricultural and construction applications. Whether you are servicing a mini-excavator or a sub-compact tractor, this component is engineered to restore engine power and efficiency.

Key Features & Benefits

• Precision Fitment: Direct replacement for Kubota D722 engines, utilizing OEM numbers 16851-21110 and 16851-21114 for guaranteed compatibility.
• Complete Assembly: Supplied with the piston pin, reducing procurement time and ensuring all connecting components are matched for optimal performance.
• Durable Construction: Manufactured from high-strength materials to withstand the thermal and mechanical stresses of diesel combustion, ensuring a long service life.
• Engine Performance: Restores compression ratio and combustion efficiency, helping to reduce fuel consumption and emissions while increasing power output.
• Rigorous Testing: Each unit undergoes outgoing inspection and machinery test reports to verify dimensional accuracy and structural integrity.
• OEM Quality Standards: Designed to meet the exact specifications of the original Kubota parts, providing a reliable alternative to dealer-purchased components.

Technical Specifications

OEM Cross-Reference

This piston assembly is a direct replacement for the following original Kubota part numbers:

• 16851-21110 (Piston Assembly)
• 16851-21114 (Piston Assembly – Alternative/Oversize Variant)

Note: Always verify your engine’s specific requirements. The 16851-21114 may indicate a standard or oversize variant. Please confirm with your engine manual or existing part.

Compatibility

This product is specifically designed for the Kubota D722 diesel engine. It is commonly used for the following machinery applications:

• Tractors: Kubota B series sub-compact tractors (e.g., B5100, B6100, B7100, B7200, B8200) and other models utilizing the D722 engine.
• Excavators: Kubota mini-excavators (e.g., K008, KX41, U17, U25) that are powered by the D722 engine.
• Other Equipment: Generators, welders, and industrial pumps using the Kubota D722 engine block.

Fitment Note: Fitment is inferred based on the engine model (D722). Always cross-reference your specific engine serial number and existing part number (16851-21110 or 16851-21114) before purchase to ensure compatibility.

Global Supply & Distribution

We provide reliable worldwide shipping for this Kubota D722 engine piston, supporting international B2B buyers in various markets:

• North America: Fast delivery to major ports (Los Angeles, New York, Vancouver) and industrial hubs in the USA, Canada, and Mexico.
• Europe: Efficient distribution to Rotterdam, Hamburg, and Antwerp, serving agricultural and construction machinery dealers across the EU.
• Asia-Pacific: Direct shipping to Japan, South Korea, Australia, and Southeast Asian markets for quick turnaround.
• Middle East & Africa: Regular shipments to Dubai, Jeddah, and Durban for mining and construction equipment parts.
• South America: Export experience to Brazil, Argentina, and Chile for agricultural machinery maintenance.

Our logistics team ensures compliance with international trade regulations, providing secure packaging and tracking for all orders.

Quality Assurance

We prioritize quality control to ensure every piston meets the rigorous demands of Kubota diesel engines:

• Manufacturing Standards: Produced in ISO-certified facilities in Guangdong, China, adhering to strict dimensional tolerances.
• Testing Procedures: Each piston assembly undergoes a machinery test report and video outgoing inspection to verify fit, surface finish, and pin alignment.
• Warranty: Backed by a 6-month warranty covering manufacturing defects. After-warranty online support is also available to assist with technical inquiries.
• OEM Service: We offer OEM service for custom or bulk orders, ensuring parts are manufactured to your exact specifications.

FAQ

Q1: How do I confirm that this piston (16851-21110) fits my Kubota D722 engine?
A: First, locate your engine’s serial number (stamped on the engine block near the injector pump). Then, remove the old piston and check the number stamped on it. If it reads 16851-21110 or 16851-21114, this is the correct replacement. If your engine has been bored oversize, the number may differ. Always measure the cylinder bore diameter and compare it to the piston specifications.

Q2: What is the difference between part numbers 16851-21110 and 16851-21114?
A: The 16851-21110 is the standard piston assembly for the D722 engine. The 16851-21114 is typically an alternative or possibly an oversize variant (e.g., 0.25mm or 0.50mm oversize). Without specific Kubota documentation, the exact difference (standard vs. oversize) should be verified by measuring the piston diameter or consulting your engine repair manual.

Q3: Can I use this piston for a complete engine rebuild?
A: Yes, but for a complete rebuild, you should also replace the piston rings, cylinder liners (if applicable), wrist pin bushings, and connecting rod bearings. This piston assembly includes the pin but not the rings. We recommend purchasing a full gasket set and ring set (specific to the D722) to ensure a proper seal and long engine life.