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Product Details
Product Overview
This premium Hyundai D4BH Cylinder Liner (OEM Number: 21131-42001) is a critical component for maintaining the performance and longevity of your diesel engine. Designed for heavy-duty applications, this liner ensures a perfect seal between the piston and the cylinder wall, reducing wear and optimizing compression. We provide global shipping to major industrial hubs worldwide, serving markets including North America, Europe, Southeast Asia, the Middle East, and Africa.
Key Features & Benefits
Superior Durability: Manufactured from high-grade cast iron or alloy steel to withstand extreme temperatures and pressures.
Precision Engineering: Machined to exact OEM specifications (21131-42001) for a seamless fit and reliable performance.
Enhanced Engine Life: Reduces friction and oil consumption, extending the service interval of your D4BH engine.
Corrosion Resistance: Treated surface protects against rust and wear from fuel and combustion byproducts.
Cost-Effective Solution: Direct replacement for worn liners, avoiding costly full engine overhauls.
Technical Specifications
Specification
Detail
Part Name
Cylinder Liner
OEM Number
21131-42001
Engine Model
Hyundai D4BH
Material
High-Strength Cast Iron / Alloy Steel
Surface Finish
Honed to precise micro-finish
Hardness
≥ 45 HRC
Application
Diesel Engine Cylinder Block
OEM Cross-Reference
Hyundai OEM: 21131-42001 (Direct Fit)
Alternative OEM: 21131-42000 (Compatible variant)
Cross-Reference: Suitable for replacement of original Hyundai parts in D4BH series engines.
Vehicle Applications: Hyundai H-1, Starex, Porter, Grace, and other commercial vehicles equipped with the D4BH engine.
Year Range: Primarily 1990s–2000s (Verify engine code for exact fitment).
Global Supply & Distribution
Worldwide Shipping: Reliable logistics partners ensure fast delivery to North America, Europe, Asia-Pacific, Middle East, Africa, and South America.
Major Ports Served: Rotterdam, Shanghai, Singapore, Dubai, Los Angeles, Hamburg.
Export Capabilities: We specialize in international B2B trade with full customs documentation and compliance.
Bulk Orders: Volume discounts available for workshops, dealers, and fleet operators.
Quality Assurance
Manufacturing Standards: Produced under ISO 9001:2015 certified facilities.
Testing: 100% inspected for dimensional accuracy, hardness, and surface integrity.
Warranty: 12-month warranty against manufacturing defects (excludes improper installation).
FAQ
Q1: Is this cylinder liner a direct replacement for the OEM part 21131-42001?
Yes, this liner is manufactured to match the exact OEM specifications of Hyundai part number 21131-42001. It is a direct bolt-on replacement requiring no modifications.
Q2: What are the signs that my D4BH engine needs a new cylinder liner?
Common indicators include excessive oil consumption, loss of compression, blue or white exhaust smoke, and visible scoring or wear on the old liner. A compression test can confirm.
Q3: What installation precautions should I take?
Ensure the cylinder block bore is clean and free of debris. Use a proper liner press tool to avoid distortion. Always replace piston rings and gaskets simultaneously for optimal sealing. Check the liner protrusion after installation.
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