D1403 Cylinder Head Assembly 16414-03040 For Kubota Engine Parts

Product Details

Product Overview

This high-quality D1403 Cylinder Head Assembly (OEM Reference: 16414-03040) is a precision-engineered component designed for Kubota D1403 diesel engines. As a critical part of the engine’s top-end assembly, this cylinder head ensures proper combustion chamber sealing, valve operation, and coolant flow.

Manufactured to OEM specifications, this replacement part is suitable for a wide range of industrial applications commonly associated with Kubota powerplants. While primarily designed for the D1403 model, it is essential to verify compatibility with your specific engine serial number and application before installation.

This assembly is a direct-fit replacement, offering a reliable solution for engine rebuilds or repairs on construction, agricultural, and industrial equipment powered by the Kubota D1403 diesel engine.

Key Features & Benefits

• OEM Specification Build: Manufactured to match the original Kubota 16414-03040 specifications, ensuring dimensional accuracy and a proper seal.
• Durable Construction: Cast from high-grade alloy iron to withstand the thermal and mechanical stress of diesel combustion.
• Precision Machining: Valve seats, guides, and deck surfaces are machined to tight tolerances for optimal compression and oil control.
• Direct Fit Replacement: Designed as a bolt-on assembly for the Kubota D1403 engine, minimizing installation time and machining requirements.
• Comprehensive Testing: Each assembly undergoes pressure testing to verify integrity against leaks and cracks.
• Versatile Application: Suitable for a broad range of equipment including generators, tractors, forklifts, and marine auxiliaries using the D1403 engine.

Technical Specifications

OEM Cross-Reference

This cylinder head assembly directly replaces the following Kubota OEM part numbers:

• 16414-03040 (Primary OEM Number)
• 16414-03041 (Superseded/Alternate)
• 16414-03042 (Superseded/Alternate)

Note: Always verify the casting number on your existing cylinder head to confirm compatibility. This part is a direct replacement for the D1403 engine block.

Compatibility

This cylinder head is specifically designed for the Kubota D1403 diesel engine. It is commonly used in the following equipment categories:

• Industrial Engines: Power units, generators, and pumps.
• Agricultural Machinery: Tractors and tillers.
• Construction Equipment: Mini excavators and compact loaders.
• Marine Applications: Auxiliary power units.

Fitment Note: This part is designed for the D1403 engine block. It is not compatible with the D1402 or D1401 models without verification of cylinder head bolt pattern and combustion chamber volume.

Global Supply & Distribution

We provide reliable global logistics to support B2B buyers and workshops worldwide. Our standard shipping network covers:

• North America: Reliable delivery to major ports (Los Angeles, Houston, New York) and inland industrial hubs.
• Europe: Fast transit to Rotterdam, Hamburg, and Felixstowe, with onward distribution to the EU.
• Asia-Pacific: Direct shipping to Singapore, Tokyo, Sydney, and major Chinese ports.
• Middle East & Africa: Service to Dubai, Jeddah, and Durban.

We understand the urgency of equipment downtime. Our export team ensures proper documentation (Commercial Invoice, Packing List, Bill of Lading) for smooth customs clearance. Bulk orders can be consolidated for cost-effective freight.

Quality Assurance

We prioritize quality to ensure your engine rebuild is successful. Our quality control process includes:

• Material Verification: Raw material analysis to confirm casting integrity.
• Dimensional Inspection: 100% inspection of critical dimensions (valve guide bore, seat angle, deck flatness).
• Pressure Testing: Each head is tested for water jacket and oil passage leaks.
• Certification: Machinery Test Report and Video Outgoing Inspection are provided upon request.
• Warranty: Backed by a 6-month warranty against manufacturing defects.

FAQ

Q: Is this cylinder head a “complete” assembly? Does it come with valves and springs?

A: This is a bare cylinder head casting and machining assembly. It includes the head casting with valve guides and seats installed, but does not typically include valves, springs, retainers, or camshaft. You should transfer these components from your original head or purchase a full gasket and valve set separately.

Q: What is the recommended torque procedure for the D1403 cylinder head?

A: The Kubota D1403 cylinder head bolts require a specific multi-step torque sequence. A general guideline is to tighten in three stages to a final torque of approximately 98-103 Nm (72-76 lb-ft) using a criss-cross pattern from the center outward. Always consult the official Kubota service manual for your specific engine serial number to confirm the correct torque specifications and angle tightening requirements.

Q: How can I verify this head will fit my engine before ordering?

A: We recommend comparing the casting number on your old cylinder head with the OEM number 16414-03040. Additionally, measure the cylinder head height (typically around 85-90mm for D1403) and check the bolt hole pattern. For absolute certainty, please provide your engine serial number (e.g., D1403-XXXXX) to our technical support team for cross-referencing.