D902 Piston With Pin 1g911-21110 Engine Rebuilt Kit Parts For Kubota D902 Diesel Engine Excavator

Product Details

Product Overview

This premium D902 Piston Kit (Part Numbers: 1G911-21110 / 1G911-21112) is a critical component for maintaining or rebuilding the Kubota D902 3-cylinder diesel engine. Designed for high-stress applications, this kit includes one piston, one piston pin, and two snap rings, providing everything needed for a single-cylinder overhaul.

Engineered for heavy-duty equipment, this piston assembly is commonly used in Kubota excavators (U17, KX41-3), tractors (BX24, BX25), utility vehicles (RTV900), loaders, and generators. Manufactured from high-performance aluminum alloy, it offers excellent thermal conductivity and durability under high compression. Whether you are servicing a compact excavator on a job site or maintaining a farm tractor, this replacement part is designed to restore original engine performance and reliability.

Key Features & Benefits

• Precision Fit: Manufactured to OEM specifications for a direct replacement in Kubota D902 engines. The standard bore size is 72.00mm, with oversize (+0.50mm) options available for re-bored cylinders.
• Durable Construction: Made from high-strength aluminum alloy, ensuring resistance to thermal fatigue and wear under continuous operation in excavators and tractors.
• Complete Kit: Includes the piston, wrist pin, and snap rings, reducing the need for separate sourcing and simplifying your engine rebuild process.
• Enhanced Reliability: The pin and clip design secures the assembly to the connecting rod, preventing play and reducing the risk of engine knocking or failure.
• Versatile Application: Suitable for a wide range of Kubota-powered equipment, including construction, agricultural, and utility vehicles, making it a versatile stock item for workshops.

Technical Specifications

OEM Cross-Reference

This piston assembly directly replaces the following Kubota OEM part numbers. Verify your engine serial number for exact compatibility.

• Primary OEM: 1G911-21110
• Alternate OEM: 1G911-21112

Note: Always confirm the part number on your existing piston or service manual before purchasing.

Compatibility

This kit is specifically designed for the Kubota D902 diesel engine and is commonly used for the following equipment:

• Excavators: Kubota U17, KX41-3
• Tractors: Kubota BX24, BX25
• Utility Vehicles: Kubota RTV900
• Other Applications: Loaders, Generators, and industrial pumps powered by the D902 engine.

Fitment is inferred based on standard engine application data. Please verify with your equipment manufacturer’s specifications.

Global Supply & Distribution

We support international B2B buyers with fast, reliable shipping to major industrial markets worldwide. Our logistics network ensures efficient delivery to:

• North America: Ports of Los Angeles, Houston, and New York; inland distribution to Chicago, Toronto, and Monterrey.
• Europe: Ports of Rotterdam, Hamburg, and Antwerp; serving Germany, France, UK, and Scandinavia.
• Asia-Pacific: Ports of Singapore, Shanghai, and Tokyo; covering Australia, Indonesia, and Vietnam.
• Middle East & Africa: Ports of Dubai, Jebel Ali, and Durban; serving construction and agricultural sectors.

We offer flexible shipping options including sea freight (FCL/LCL), air express (DHL, FedEx), and rail freight for bulk orders. All shipments are fully insured and tracked. Our export compliance ensures smooth customs clearance for your region.

Quality Assurance

• Manufacturing Standards: Parts are produced in an ISO 9001 certified facility, adhering to strict quality control processes.
• Material Testing: High-grade aluminum alloy is tested for hardness and thermal stability to meet OEM performance benchmarks.
• Inspection Process: Each piston undergoes dimensional checks and surface finish inspection. Video outgoing inspection and machinery test reports are available upon request.
• Warranty: Standard 6-month warranty against manufacturing defects. Extended 12-month warranty options are available for bulk or wholesale orders.

FAQ

Q: Will this piston fit my Kubota RTV900 engine?
A: Yes, this piston kit (Part 1G911-21110) is a standard replacement for the Kubota D902 engine found in the RTV900. However, we recommend verifying your engine serial number and existing piston part number to ensure correct fitment, especially if the engine has been previously re-bored to an oversize.

Q: What is the difference between the 1G911-21110 and 1G911-21112 part numbers?
A: These two numbers often refer to the same piston assembly but may be used interchangeably in different Kubota parts catalogs or service revisions. The 1G911-21110 is the more commonly referenced OEM number for the standard D902 piston. We supply the exact same specification part under both references.

Q: Do I need to replace the piston rings and cylinder liner at the same time?
A: For a complete and reliable rebuild, it is highly recommended to replace the piston rings and inspect the cylinder liner (or re-bore the block) when installing a new piston. Worn rings or a scored cylinder wall will reduce compression and oil control, leading to premature failure of the new piston. We offer matching ring sets and liner kits for the D902 engine upon request.