Kubota D1403 Cylinder Head Assembly 16414-03040 | 1G971-03040 Tractor Engine Part

Product Details

Product Overview

This premium Kubota D1403 Cylinder Head Assembly (OEM #16414-03040 / 1G971-03040) is a direct-fit replacement designed for Kubota tractor and industrial machinery engines. Manufactured to meet or exceed OEM specifications, this cylinder head ensures optimal combustion chamber sealing, heat dissipation, and long-term durability. We ship globally to major markets including North America, Europe, Asia-Pacific, the Middle East, and South America, with fast logistics to industrial hubs and ports.

Key Features & Benefits

• Precision Engineering: Cast from high-grade alloy iron for superior strength and thermal stability.
• Direct Fitment: Machined to exact OEM tolerances for a perfect seal with no modifications required.
• Enhanced Durability: Hardened valve seats and guides resist wear from high-temperature operation.
• Rigorous Testing: 100% pressure-tested for leaks and cracks before shipment.
• Cost-Effective Solution: Reliable aftermarket alternative to Kubota genuine parts without compromising quality.

Technical Specifications

OEM Cross-Reference

This cylinder head directly replaces the following OEM part numbers:

• Kubota: 16414-03040, 1G971-03040
• Alternative/Cross: 16414-03041 (supersession), 1G971-03041

Note: Always verify your existing part number before purchase. This head is a bare casting; transfer of existing valves, springs, and components is required.

Compatibility

• Engine Models: Kubota D1403, D1403-B, D1403-E
• Vehicle/Equipment Applications:
  • Kubota L-Series Tractors (L245, L260, L275, L285)
  • Kubota B-Series Tractors (B7100, B7200, B8200)
  • Kubota M-Series Utility Tractors (M4050, M4500)
  • Industrial applications: Generators, Forklifts, Excavators using D1403 engine
• Year Range: 1980s-1990s (verify specific engine serial number)

Global Supply & Distribution

We maintain robust inventory for international B2B buyers. Our logistics network ensures fast, reliable delivery to:

• North America: Los Angeles, Chicago, Houston, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Shanghai, Singapore, Sydney, Tokyo
• Middle East & Africa: Dubai, Jeddah, Durban
• South America: Santos, Buenos Aires, Valparaiso

We offer EXW, FOB, CIF, and DDP terms. Bulk orders and long-term supply agreements are welcome.

Quality Assurance

• Manufacturing Standard: ISO 9001:2015 certified production facility.
• Material Certification: All castings meet tensile strength and hardness specs.
• Testing: 100% pressure test at 6 bar (87 psi) to ensure no porosity or cracks.
• Warranty: 12-month warranty against manufacturing defects.
• Packaging: Individually boxed with foam protection to prevent transit damage.

FAQ

Q1: Is this cylinder head a complete assembly or a bare casting?
A: This is a bare cylinder head. It does not include valves, springs, seals, or camshaft. You must transfer these components from your old head or purchase a new valve kit separately. We recommend replacing valve stem seals and checking valve guides during installation.

Q2: How can I confirm this head fits my Kubota D1403 engine?
A: Verify the casting number on your current head (usually located on the intake manifold side). It should read 16414-03040 or 1G971-03040. Also check your engine serial number. This head is compatible with most D1403 variants, but minor design changes occurred in later production years. Contact our technical team with your engine serial for 100% confirmation.

Q3: What is the recommended installation procedure?
A: Always use a new head gasket and cylinder head bolts. Clean the block surface thoroughly. Tighten head bolts in the manufacturer’s specified sequence and torque pattern: first pass to 40 Nm, second pass to 80 Nm, then final angle-tighten 90 degrees. After installation, run the engine to operating temperature, then re-torque the head bolts once cool (check your service manual for exact specs). We recommend using a thread lubricant on head bolts for accurate torque readings.