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Diesel Engine Parts

Kubota D722 Piston +0.50mm Oversize | Engine Rebuild Part for D722-E, D722-B

MOQ: 1pcs Price: Negotiable
Part No.
1G854-21030 / 1G854-21032
Engine Model
Kubota D722 (D722-E, D722-B, D722-E2B)
Material
High-Strength Aluminum Alloy
Size
+0.50mm (0.020 inches)
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Product Details

D722 Piston +0.50 For Kubota Engine Parts

Product Overview

This premium Kubota D722 Piston +0.50mm Oversize is engineered for high-performance engine rebuilds and overhauls. Designed specifically for the Kubota D722 series, this piston is ideal for restoring compression, reducing oil consumption, and extending engine life. We serve a global B2B clientele, with major markets in North America, Europe, Southeast Asia, and the Middle East, ensuring fast and reliable shipping for industrial, agricultural, and construction applications.

Key Features & Benefits

  • Precision Engineering: Manufactured to OEM specifications with a +0.50mm oversize for accurate fitment after cylinder boring.
  • Superior Durability: Constructed from high-strength aluminum alloy, offering excellent heat dissipation and resistance to thermal stress.
  • Enhanced Performance: Restores engine compression, reduces blow-by, and improves fuel efficiency compared to worn-out components.
  • Long Service Life: Features a hardened steel insert for the piston pin bore, reducing wear and extending operational lifespan.
  • Cost-Effective Solution: A reliable alternative to OEM parts without compromising on quality, perfect for volume rebuilds.

Technical Specifications

Specification Details
Part Name Piston (Oversize)
Engine Model Kubota D722 (D722-E, D722-B, D722-E2B)
Oversize +0.50mm (0.020 inches)
Material High-Strength Aluminum Alloy
Ring Grooves 3 (2 Compression, 1 Oil Control)
Pin Bore Diameter 18mm (Standard)
Compression Height Standard D722 Specification
Surface Treatment Tin-Plated Skirt (Anti-Scuff)

OEM Cross-Reference

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

  • Kubota Part Number: 1G854-21030
  • Kubota Part Number: 1G854-21032 (Oversize variant)
  • Alternative Reference: 15221-21030

Note: Always verify your engine’s cylinder bore condition before ordering oversize pistons.

Compatibility

  • Engine Models: Kubota D722-E, D722-B, D722-E2B, D722-E2BG
  • Applications: Kubota B-series tractors (B7100, B7200), RTV 500 utility vehicles, ZD326 mowers, and various industrial generators.
  • Year Range: 1980s to early 2000s (check engine serial number for exact match).

Global Supply & Distribution

We are a trusted exporter of diesel engine components, offering worldwide shipping to major industrial hubs. Our logistics network ensures fast delivery to:

  • North America: Los Angeles, Houston, Chicago, Toronto.
  • Europe: Rotterdam, Hamburg, Antwerp, Felixstowe.
  • Asia-Pacific: Singapore, Shanghai, Tokyo, Sydney.
  • Middle East & Africa: Dubai, Jeddah, Johannesburg.

We handle all export documentation and customs clearance support, ensuring a smooth transaction for B2B buyers.

Quality Assurance

  • Manufacturing Standards: Produced under ISO 9001:2015 certified facilities.
  • Testing: 100% dimensional inspection and hardness testing before shipment.
  • Warranty: 12-month warranty against manufacturing defects (excluding improper installation or wear).

FAQ

Q1: How do I confirm if my engine needs a +0.50mm oversize piston?

A: You must measure the cylinder bore after honing. If the bore diameter exceeds the standard service limit (typically 72.00mm for D722), the +0.50mm piston (matched with a 72.50mm bore) is required. Always consult your engine service manual.

Q2: Does this piston come with rings and a pin?

A: This listing is for the piston only. For a complete rebuild, we recommend purchasing a matching piston ring set and wrist pin separately to ensure proper gap clearance.

Q3: What is the installation procedure for this oversize piston?

A: Installation requires professional machining. The cylinder must be bored and honed to 72.50mm with proper cross-hatch pattern. Ensure the piston ring gaps are staggered 120 degrees apart and lubricate the cylinder wall with engine oil before assembly. Torque connecting rod bolts to OEM specifications (typically 18-20 ft-lbs).

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