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Product Details
Product Overview
This premium Cylinder Head Gasket, part number 400603-00029b, is a critical sealing component specifically engineered for the Doosan D18 diesel engine. As the primary barrier between the engine block and cylinder head, this gasket ensures a proper seal for combustion gases, coolant, and oil under extreme pressure and temperature conditions.
Designed as a direct OEM replacement, this gasket is commonly used in heavy-duty applications including construction machinery, industrial equipment, agricultural tractors, generator sets, marine vessels, and material handling equipment powered by the Doosan D18 engine. The component is manufactured to match original equipment specifications, ensuring reliable fitment and performance.
Please verify your engine model and existing part number before ordering to ensure complete compatibility with your specific application.
Key Features & Benefits
Precision Engineering: Manufactured to OEM specifications for the Doosan D18 engine, ensuring exact dimensional accuracy and proper sealing characteristics.
High-Temperature Resistance: Constructed from multi-layer steel (MLS) or composite materials capable of withstanding extreme combustion chamber temperatures and pressures.
Leak-Proof Performance: Advanced rubber coating and beading technology provide superior sealing against coolant, oil, and combustion gas leakage.
Durability: Designed for long service life with excellent compression recovery properties, reducing the need for frequent retorquing.
Direct Replacement: Simple bolt-on installation with no modifications required, saving valuable labor time during engine overhaul or head gasket replacement.
Corrosion Resistance: Surface treatment protects against galvanic corrosion between the cylinder head and engine block materials.
Technical Specifications
Specification
Details
Part Number
400603-00029b
Engine Model
Doosan D18
Type
Cylinder Head Gasket
Engine Type
Diesel
Size
OEM Standard Size
Weight
1.0 kg
Material
Multi-Layer Steel (MLS) / Composite
Place of Origin
Guangdong, China
Packing
Plastic Bag, Box, Carton
OEM Cross-Reference
This cylinder head gasket replaces the following original equipment manufacturer part numbers:
Doosan / Daewoo: 400603-00029b
Doosan / Daewoo: 400603-00029A
Doosan / Daewoo: 400603-00029 (superseded)
Always verify the original part number stamped on your existing gasket or consult your engine manual for the correct specification. Cross-reference information is provided for guidance only.
Compatibility
This cylinder head gasket is commonly used for the following applications:
Engine Models: Doosan D18 diesel engine series
Construction Equipment: Doosan excavators, wheel loaders, and bulldozers utilizing the D18 engine
Industrial Applications: Generator sets, compressors, and pumps powered by Doosan D18 engines
Agricultural Machinery: Tractors and harvesters equipped with Doosan D18 power units
Marine & Handling: Forklifts, cranes, and marine auxiliary engines
Note: Fitment information is based on typical applications. Please confirm compatibility with your specific equipment model and serial number before purchase.
Global Supply & Distribution
We maintain extensive inventory of Doosan D18 engine components to support rapid global delivery. Our logistics network enables efficient shipping to all major international markets:
North America: Regular shipments to USA, Canada, and Mexico via air and sea freight
Europe: Fast delivery to EU countries, UK, and Eastern European markets
Asia-Pacific: Direct distribution to Japan, South Korea, Australia, and Southeast Asian nations
Middle East & Africa: Reliable service to UAE, Saudi Arabia, South Africa, and surrounding regions
South America: Regular exports to Brazil, Argentina, Chile, and Colombia
All shipments are professionally packed with export-grade packaging to prevent damage during transit. We offer multiple shipping options including express courier, air freight, and sea freight to meet your delivery timeline requirements.
Quality Assurance
Every cylinder head gasket undergoes rigorous quality control procedures to ensure reliable performance:
Manufacturing Standards: Produced in ISO-certified facilities with strict quality management systems
Inspection: Video outgoing inspection available upon request for order verification
Testing: Machinery test reports provided to confirm dimensional accuracy and sealing performance
Warranty: 6-month warranty against manufacturing defects from the date of purchase
After-Sales Support: Online technical support available for installation guidance and troubleshooting
FAQ
Q1: How can I confirm this gasket fits my Doosan D18 engine?
Please check the part number stamped on your existing cylinder head gasket or refer to your engine’s parts manual. The OEM number should be 400603-00029b, 400603-00029A, or 400603-00029. Additionally, verify your engine model number is D18. If you have any doubt, contact our technical support team with your engine serial number for confirmation.
Q2: What is the recommended installation procedure for this cylinder head gasket?
Proper installation is critical for gasket performance. Ensure both the cylinder head and block surfaces are clean, flat, and free from debris or old gasket material. Follow the manufacturer’s torque specifications and tightening sequence for the Doosan D18 engine. We recommend using new cylinder head bolts and applying the correct torque in multiple stages as specified in your service manual. Allow the engine to reach operating temperature, then re-torque if required by the manufacturer’s procedure.
Q3: What is the expected service life of this gasket and what causes premature failure?
Under normal operating conditions and proper installation, this gasket can last the life of a major engine overhaul interval. Premature failure is typically caused by: (1) Overheating due to coolant loss or cooling system issues, (2) Incorrect torque application during installation, (3) Warped cylinder head or block surfaces, (4) Detonation or pre-ignition from fuel system problems, or (5) Using incorrect gasket type for the specific engine application. Regular maintenance of the cooling system and following proper installation procedures will maximize gasket service life.
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