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Product Details
Product Overview
This high-quality cylinder head bolt is specifically engineered for the Kubota V1902 diesel engine. As a critical component for maintaining proper cylinder head clamping force, this bolt ensures a secure seal between the engine block and cylinder head. We supply this part globally to major markets including North America, Europe, Southeast Asia, and the Middle East, supporting agricultural, industrial, and construction machinery applications.
Key Features & Benefits
Premium Material Construction: Manufactured from high-strength alloy steel to withstand extreme torque specifications and thermal cycling.
Precision Engineering: Threads are rolled and heat-treated for consistent clamping force and long-term durability.
Corrosion Resistance: Surface treatment provides protection against rust and environmental degradation.
Direct Fit Replacement: Matches OEM specifications exactly, ensuring proper head gasket compression and engine sealing.
Enhanced Reliability: Reduces risk of head gasket failure and coolant/oil leakage in high-hour engine applications.
Technical Specifications
Specification
Details
Part Number
1920203450 / 19013-03450
Engine Model
Kubota V1902
Material
High-Strength Alloy Steel (40Cr or equivalent)
Thread Size
M12 x 1.25 (Standard Metric)
Length
Approximately 110mm
Hardness Grade
10.9 (High Tensile)
Surface Finish
Zinc-Plated / Black Oxide
Quantity Per Set
Typically 4 or 6 bolts per engine
OEM Cross-Reference
This cylinder head bolt is a direct replacement for the following OEM part numbers:
Kubota OEM: 1920203450, 19013-03450
Alternative Numbers: 1G856-03010 (Superseded cross-reference)
Note: Always verify your specific engine serial number for compatibility.
Compatibility
Engine Models:
Kubota V1902 (All variants including V1902-B, V1902-E)
Common Applications:
Kubota tractors (L-series, M-series with V1902 engines)
Kubota construction equipment (mini excavators, loaders)
Agricultural machinery using Kubota V1902 power units
Year Ranges: Compatible with V1902 engines produced from the 1990s through current production.
Global Supply & Distribution
We offer worldwide shipping with extensive logistics capabilities to serve international B2B customers:
Major Markets: North America (USA, Canada, Mexico), Europe (EU, UK, Norway), Asia-Pacific (Australia, Japan, South Korea), Middle East (UAE, Saudi Arabia), Africa (South Africa, Nigeria), and South America (Brazil, Argentina).
Fast Delivery: Stock held in multiple warehouses for rapid dispatch to major ports including Los Angeles, Rotterdam, Shanghai, and Dubai.
Shipping Options: Express courier (DHL, FedEx, UPS) for urgent orders; sea freight for bulk shipments; air freight for mid-size orders.
Export Experience: Over 10 years of international trade compliance with proper customs documentation and HS code classification.
Quality Assurance
Manufacturing Standards: Produced in ISO 9001:2015 certified facilities with strict quality control.
Testing Procedures: 100% dimensional inspection, hardness testing (Rockwell), and proof load testing on each batch.
Certifications: Material test certificates available upon request.
Warranty: 12-month warranty against manufacturing defects in material and workmanship.
FAQ
Q1: How do I verify this bolt fits my Kubota V1902 engine? A: Check your engine serial number plate and existing bolt dimensions. The OEM part number 1920203450 or 19013-03450 should match your current bolts. Measure thread pitch (M12x1.25) and overall length (approx. 110mm) to confirm compatibility.
Q2: What is the recommended torque specification for installation? A: For Kubota V1902 cylinder head bolts, use a multi-step torque sequence: first to 30 Nm (22 ft-lbs), then 60 Nm (44 ft-lbs), followed by a 90° angle turn. Always consult the specific engine service manual for exact procedures, as torque values may vary by engine variant.
Q3: Can I reuse these bolts after removal? A: No. Cylinder head bolts are torque-to-yield (TTY) fasteners and should always be replaced with new bolts during reassembly. Reusing old bolts risks improper clamping force, leading to head gasket failure and potential engine damage.
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