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Fitment checkOEM number, engine model, and machine model confirmation.
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Product Details
Product Overview
This premium diesel engine piston, identified by OEM part number 1G363-2111 (also known as 1G363-21110 and 1G36321110), is a direct replacement component designed for specific Kubota D1503 and V2003 series engines. Manufactured with a standard (STD) bore diameter of 83mm, this piston is engineered to restore compression and power output in compact diesel engines commonly used in construction and agricultural equipment.
The piston features a 38mm combustion chamber bowl and is constructed from high-strength aluminum alloy, ensuring durability under high thermal and mechanical loads. It is commonly used for Bobcat skid steer loaders including the S150, S160, S175, and S185 models, as well as Kubota tractors such as the L2900 and L3000. Please verify your engine model and serial number to confirm exact fitment before installation.
Key Features & Benefits
Precision Engineering: Manufactured to OEM specifications with an 83mm standard bore diameter and 38mm combustion bowl, ensuring exact dimensional accuracy for reliable engine performance.
High-Strength Material: Constructed from premium aluminum alloy, offering excellent heat dissipation, reduced weight, and superior resistance to wear and thermal fatigue.
Direct OEM Replacement: Cross-references to Kubota part numbers 1G363-2111, 1G363-21110, and 1G36321110, providing confidence in fitment for D1503-DI, V2003-DI, and V2003-M-DI engine variants.
Enhanced Compression: Designed to restore factory compression ratios, improving fuel efficiency, reducing exhaust smoke, and maximizing horsepower output in worn engines.
Rigorous Quality Control: Each piston undergoes outgoing video inspection and machinery test reporting to verify dimensional tolerances and material integrity before shipment.
Versatile Application: Suitable for both Bobcat compact construction equipment and Kubota agricultural tractors, reducing inventory complexity for equipment owners.
Flexible Packaging Options: Available in neutral or customized packaging to suit wholesale distribution, dealer stock, or end-user requirements.
Technical Specifications
Specification
Detail
Part Number
1G363-2111 / 1G363-21110 / 1G36321110
Engine Models
Kubota D1503-DI, V2003-DI, V2003-M-DI
Type
Diesel Engine Piston
Bore Diameter
83 mm (Standard Size)
Combustion Chamber Bowl
38 mm
Material
Aluminum Alloy / Cast Pistons
Weight
Approximately 3 kg
Warranty
6 Months or 12 Months / 1 Year (Option Dependent)
Place of Origin
Guangdong, China
Packing
Neutral Packing or Customized Packing
OEM Cross-Reference
This piston is a direct aftermarket replacement for the following original equipment manufacturer (OEM) numbers. Please cross-reference your existing part to confirm compatibility before ordering.
These part numbers correspond to pistons used in Kubota D1503 and V2003 series diesel engines. No additional OEM cross-references are available from the manufacturer at this time.
Compatibility
This piston is engineered for the following engine models and equipment applications. Fitment is based on manufacturer specifications and should be verified against your engine serial number.
Important Note: Compatibility is commonly reported for these models, but variations in engine configurations (e.g., naturally aspirated vs. turbocharged) may affect fitment. Always consult your equipment’s service manual or engine serial number for confirmation.
Global Supply & Distribution
We maintain a robust global supply chain to deliver diesel engine components to B2B buyers worldwide. Our pistons are available for export to all major industrial markets, including:
North America: Rapid delivery to ports and distribution centers in the United States, Canada, and Mexico.
Europe: Efficient shipping to EU countries, the United Kingdom, and Eastern European markets.
Asia-Pacific: Direct service to Japan, South Korea, Australia, New Zealand, and Southeast Asian nations.
Middle East & Africa: Reliable logistics to UAE, Saudi Arabia, South Africa, and surrounding regions.
Latin America: Export support to Brazil, Argentina, Chile, and other key agricultural and construction markets.
With experience in international trade compliance and customs documentation, we ensure smooth processing for wholesale orders, dealer stock replenishment, and large-scale equipment rebuild projects.
Quality Assurance
Our manufacturing process adheres to strict quality control standards to ensure each piston meets or exceeds OEM performance requirements.
Manufacturing Standards: Produced in ISO-compliant facilities in Guangdong, China, using precision casting and machining techniques.
Testing Procedures: Each unit undergoes outgoing video inspection and machinery test reporting to verify dimensional accuracy, surface finish, and material integrity.
Warranty Coverage: Backed by a warranty of 6 months or 12 months (1 year), depending on the selected option. This covers manufacturing defects in materials and workmanship under normal operating conditions.
Material Certification: All aluminum alloy pistons are sourced from certified foundries with documented material traceability.
FAQ
Q1: How do I confirm this piston fits my Bobcat S175 or Kubota L3000 engine? A: First, verify your engine model number (e.g., Kubota D1503 or V2003) stamped on the engine block or in your equipment’s service manual. This piston is designed for these specific engine series. Next, check that the current piston bore diameter is 83mm (standard size). If your engine has been previously rebored, you may require an oversized piston. Always cross-reference your existing piston part number against the OEM numbers listed (1G363-2111, 1G363-21110) to ensure compatibility.
Q2: Can this piston be installed without professional machining? A: No. Piston installation is a precision task that requires professional mechanical expertise. The cylinder bore must be inspected for wear, roundness, and taper. If the bore is within specifications, the piston can be installed with new piston rings and proper lubrication. If the bore is worn or damaged, it must be honed or rebored to the correct clearance. We strongly recommend having a certified diesel mechanic or machine shop perform the installation to prevent engine damage.
Q3: What maintenance is recommended after replacing the piston? A: After piston replacement, follow a proper engine break-in procedure as outlined in your equipment’s service manual. This typically includes operating the engine at varying loads (avoiding prolonged idling or full throttle) for the first 10-20 hours. Change the engine oil and filter after the break-in period to remove any metal particles from the new components. Regularly check valve clearances, injector timing, and cooling system health to maximize the lifespan of the new piston. Use high-quality diesel engine oil with the correct API rating for your engine model.
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