Cummins NT855 Cylinder Head Gasket 4058790 | Heavy Duty Engine Seal

Product Details

Product Overview

This premium Cummins NT855 Cylinder Head Gasket (Part Number: 4058790) is a critical sealing component designed for high-performance heavy-duty diesel engines. Manufactured to meet or exceed OEM specifications, this gasket ensures a perfect seal between the engine block and cylinder head, preventing coolant and combustion gas leaks. We serve a global network of clients, with major markets including North America, Europe, Southeast Asia, the Middle East, and Africa. Our logistics network ensures fast, reliable shipping to industrial hubs and major ports worldwide.

Key Features & Benefits

• Superior Material Composition: Constructed from multi-layer steel (MLS) or high-grade graphite composite for maximum heat and pressure resistance.
• Precision Engineering: Manufactured with exacting tolerances to match Cummins OEM specifications, ensuring a perfect fit and reliable seal.
• Enhanced Durability: Designed to withstand the extreme combustion pressures and thermal cycling of the NT855 engine, providing a longer service life compared to standard gaskets.
• Leak-Proof Performance: Features advanced silicone bead or rubber coating on sealing surfaces to prevent oil, coolant, and compression leaks.
• Direct Replacement: A drop-in replacement for the original Cummins part, requiring no modifications for installation.

Technical Specifications

OEM Cross-Reference

This gasket is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

• Cummins OEM: 4058790
• Alternate/Cross Numbers: 3010598, 4058791 (Check application specific requirements)

Note: Always verify the part number on your existing gasket or service manual to confirm compatibility.

Compatibility

This cylinder head gasket is specifically engineered for the Cummins NT855 engine platform. This engine is widely used in:

• Heavy-Duty Trucks: Kenworth, Peterbilt, Freightliner
• Construction Equipment: Caterpillar, Komatsu, Hitachi (models using NT855 power units)
• Industrial & Marine: Generator sets, pumps, and marine propulsion systems.

Common Vehicle/Equipment Models: This gasket is suitable for various applications from the 1970s through the 2000s where the NT855 engine is installed. Please confirm your engine serial number.

Global Supply & Distribution

We are an experienced exporter of heavy-duty engine components. Our supply chain is optimized for international B2B clients:

• Worldwide Shipping: We ship via sea (FCL/LCL), air (DDP/DAP), and express couriers (DHL, FedEx, UPS).
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Australia, Singapore, UAE), Middle East (Saudi Arabia, Qatar), and Africa (South Africa, Nigeria).
• Fast Delivery: Stock items are dispatched within 24-48 hours. Bulk orders can be delivered to major ports like Houston, Rotterdam, Shanghai, and Jebel Ali within 15-25 days.
• Trade Compliance: We provide all necessary export documentation for smooth customs clearance.

Quality Assurance

• Manufacturing Standard: Produced under strict ISO 9001:2015 quality management systems.
• Testing: Each gasket batch undergoes pressure, heat, and dimensional testing to ensure a leak-free seal.
• Warranty: We offer a standard 12-month warranty against manufacturing defects. Extended warranty options are available for volume orders.

FAQ

Q: How do I confirm this gasket fits my specific engine?
A: Please check your existing gasket for the part number (4058790) or your engine’s CPL (Control Parts List) number. The NT855 engine has many variants; verifying the CPL ensures the correct gasket thickness and composition for your specific application.

Q: What is the recommended installation procedure?
A: Ensure the cylinder head and engine block surfaces are perfectly clean and flat. Use a straight edge to check for warpage. Do not use additional sealant unless specified by the manufacturer. Follow the specific torque sequence and angle-tightening specifications for your NT855 engine model to avoid gasket failure.

Q: What is the difference between a standard gasket and a “fire ring” gasket?
A: This part (4058790) is a standard-duty gasket suitable for most naturally aspirated and low-boost applications. If your engine is modified, turbocharged, or operates under extreme conditions, you may require a “fire ring” or “wire ring” gasket for higher clamping force. Please consult with our sales team if you have a high-performance application.