Kubota D1803 Crankshaft – Engine Part for D1803-M, D1803-E, 1G123-30010

Product Details

Product Overview

This high-quality Kubota D1803 Crankshaft is a critical engine component designed for precision and reliability. Manufactured to meet or exceed OEM specifications, this crankshaft ensures smooth engine operation for a variety of Kubota industrial and agricultural applications. We are a global supplier with extensive export experience, serving major markets including North America, Europe, Southeast Asia, the Middle East, and South America. Our logistics network ensures fast and secure delivery to ports and industrial hubs worldwide.

Key Features & Benefits

• Precision Engineered: Manufactured using high-strength ductile iron for superior fatigue resistance and long service life.
• Strict Quality Control: Undergoes rigorous dimensional, hardness, and balance testing to ensure perfect fitment and performance.
• Direct Replacement: Designed as a direct OEM replacement, simplifying installation and reducing downtime.
• Enhanced Durability: Features induction-hardened journal surfaces to minimize wear under heavy loads.
• Cost-Effective Solution: Offers a reliable alternative to expensive OEM parts without compromising quality.

Technical Specifications

OEM Cross-Reference

This crankshaft is a direct replacement for the following OEM part numbers:

• Kubota Original: 1G123-30010, 1G123-30012
• Compatible Models: D1803-M, D1803-E, D1803-CR

Compatibility

This crankshaft is specifically designed for the Kubota D1803 diesel engine series. This engine is commonly found in:

• Agricultural Tractors: Kubota L-Series, B-Series (specific models with D1803 engine)
• Construction Equipment: Mini excavators, compact loaders (e.g., Kubota K-Series)
• Industrial Applications: Generators, pumps, and other stationary equipment

Please verify your engine model and existing part number before purchase.

Global Supply & Distribution

We are a trusted exporter of heavy-duty engine components. Our supply chain is optimized for international B2B clients:

• Worldwide Shipping: We ship to all major continents via sea, air, and express courier (DHL, FedEx, UPS).
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Japan, Australia, Singapore), Middle East (UAE, Saudi Arabia), and South America (Brazil, Chile).
• Fast Delivery: Stock is available for immediate dispatch from our warehouses. Typical transit time to major ports is 7-15 days.
• Trade Compliance: We ensure all documentation (Commercial Invoice, Packing List, Certificate of Origin) is provided for smooth customs clearance.

Quality Assurance

We prioritize quality to ensure your engine runs reliably for thousands of hours.

• Manufacturing Standards: ISO 9001:2015 certified production facility.
• Testing: Each crankshaft undergoes 100% inspection for dimensional accuracy, surface finish, and hardness (Rockwell C scale).
• Warranty: 12-month warranty against manufacturing defects in material and workmanship.
• Certification: Available upon request (Material Test Report, Certificate of Conformance).

FAQ

Q1: How do I confirm this crankshaft fits my Kubota D1803 engine?
A: Please verify your engine’s model number (e.g., D1803-M, D1803-E) and compare the existing part number with our OEM cross-reference (1G123-30010 or 1G123-30012). If you are unsure, provide us with your engine serial number, and we can confirm compatibility.

Q2: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel mechanic. Ensure the engine block is clean, main bearing bores are within spec, and new main bearings and thrust washers are used. Torque all main bearing bolts to the manufacturer’s specifications in the correct sequence. Pre-lubricate all bearing surfaces with clean engine oil before assembly.

Q3: How do you balance this crankshaft?
A: This crankshaft is statically and dynamically balanced at the factory to OEM specifications. No additional balancing is required for standard applications. However, if you are using custom pistons or connecting rods, we recommend re-balancing the rotating assembly as a unit.