Kubota D902 Engine Cylinder Head Assembly 1j094-03040 for Excavator & Industrial Diesel Engines

Product Details

Product Overview

This premium Kubota D902 Cylinder Head Assembly (Part Number: 1j094-03040) is a critical component for maintaining peak performance in Kubota D902 diesel engines. Designed for heavy-duty applications including mini excavators, compact tractors, generators, and industrial machinery, this assembly ensures reliable combustion, optimal compression, and long service life. We provide global shipping to major markets including North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring fast delivery to industrial centers and ports worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured to meet or exceed OEM specifications for exact fitment and performance.
• Superior Durability: Constructed from high-grade cast iron with hardened valve seats and guides for extended service intervals.
• Enhanced Combustion Efficiency: Precision-machined combustion chambers and valve surfaces ensure optimal fuel burn and reduced emissions.
• Rigorous Quality Control: 100% pressure-tested for leaks and dimensional accuracy before shipment.
• Complete Assembly: Includes pre-installed valves, springs, seals, and retainers—ready for installation with minimal downtime.
• Cost-Effective Solution: Direct OEM replacement at a competitive price point, reducing maintenance costs without compromising quality.

Technical Specifications

OEM Cross-Reference

This cylinder head assembly is a direct replacement for the following OEM part numbers:

• Kubota OEM: 1j094-03040
• Alternative Interchange Numbers: 15431-63010, 15431-63020 (cross-reference from other manufacturers)

Note: Always verify your existing part number against the list above to ensure compatibility.

Compatibility

This assembly is specifically designed for the Kubota D902 diesel engine, commonly found in:

• Mini Excavators: Kubota K008, KX41, KX61 series
• Compact Tractors: Kubota BX1800, BX2200, B2320, B2620
• Industrial Equipment: Generators, pressure washers, and agricultural machinery powered by the D902 engine
• Year Ranges: Late 1990s through present (check engine serial number for exact compatibility)

Global Supply & Distribution

• Worldwide Shipping: We offer reliable shipping via air, sea, and express courier (DHL, FedEx, UPS) to all major regions.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Netherlands), Asia-Pacific (Japan, South Korea, Australia, China), Middle East (UAE, Saudi Arabia), South America (Brazil, Argentina).
• Fast Delivery: Stock available in multiple warehouses; typical transit time 5–15 business days depending on destination.
• Export Experience: Over 10 years of international trade, compliant with customs regulations and documentation requirements.

Quality Assurance

• Certifications: ISO 9001:2015 certified manufacturing facilities.
• Warranty: 12-month warranty against manufacturing defects under normal operating conditions.
• Testing: Each assembly undergoes vacuum pressure testing for valve seal integrity and dimensional inspection using CMM (Coordinate Measuring Machine) equipment.
• Material Standards: Cast iron meets ASTM A48 Class 30 specifications for strength and thermal stability.

FAQ

Q1: Is this cylinder head assembly a direct bolt-on replacement for my Kubota D902 engine?
A: Yes, this assembly is manufactured as a direct OEM replacement. It includes pre-installed valves, springs, and seals. However, we recommend comparing your existing head with the provided specifications and checking the engine serial number to confirm compatibility. For best results, replace the head gasket and bolts simultaneously.

Q2: What maintenance steps are recommended before and after installation?
A: Before installation, clean the engine block surface thoroughly to remove old gasket material. Apply a thin layer of assembly lubricant to the valve stems. After installation, torque the head bolts to the manufacturer’s specifications (typically 25–30 ft-lbs in a multi-step sequence). Allow the engine to idle for 10 minutes, then re-torque bolts after the first heat cycle. Check for coolant and oil leaks after initial startup.

Q3: How does this aftermarket part compare to the original Kubota cylinder head in terms of longevity?
A: Our aftermarket head is manufactured using the same casting and machining processes as OEM parts, using high-grade cast iron and hardened valve seats. In independent tests, it has demonstrated comparable service life (typically 3,000–5,000 hours under normal operating conditions). We offer a 12-month warranty against defects, providing peace of mind for commercial and industrial applications.