4JJ1 Cylinder Head Gasket 8-98291685-0 8982916850 For Isuzu Excavator Truck

Product Details

Product Overview

This is a genuine OEM cylinder head gasket (Part Number: 8-98291685-0 / 8982916850) specifically designed for the Isuzu 4JJ1 diesel engine. As a critical sealing component, it ensures a proper seal between the engine block and cylinder head, preventing compression loss and coolant/oil leakage in high-performance applications.

Manufactured to original equipment specifications, this gasket is commonly used in Isuzu medium-duty trucks and excavator machinery powered by the 4JJ1 engine platform. The part is constructed from high-grade metal materials to withstand extreme temperatures and pressures found in heavy-duty diesel operations.

Professional buyers and workshop technicians will recognize this as the direct replacement for original Isuzu part numbers, offering exact fitment without modification. Whether for fleet maintenance or engine rebuilds, this gasket provides the reliability required for commercial vehicle and construction equipment applications.

Key Features & Benefits

• Genuine OEM Quality: Manufactured to Isuzu’s original specifications, ensuring precise fitment and sealing performance for 4JJ1 engines.
• Superior Metal Construction: Multi-layer steel (MLS) design provides exceptional heat resistance and compression sealing under extreme operating conditions.
• Direct Replacement: Exact match for OEM number 8-98291685-0 and 8982916850, eliminating guesswork during installation.
• Extended Service Life: Engineered for long-lasting durability, reducing maintenance intervals and operational downtime for commercial vehicles and excavators.
• Comprehensive Warranty: Backed by a 6-month warranty with video technical support available for installation guidance.
• Tested Reliability: Each gasket undergoes quality control testing to ensure consistent thickness and sealing properties across production batches.
• Versatile Application: Suitable for both truck and excavator applications using the Isuzu 4JJ1 engine platform.

Technical Specifications

OEM Cross-Reference

This cylinder head gasket directly replaces the following OEM part numbers:

• Isuzu OEM: 8-98291685-0
• Isuzu OEM (Alternate): 8982916850

Note: Always verify the existing part number on your engine before ordering. The cross-reference numbers listed are based on manufacturer specifications and industry databases.

Compatibility

Engine Fitment:
This gasket is specifically designed for the Isuzu 4JJ1 diesel engine. The 4JJ1 is a 3.0L common-rail turbo diesel engine used in various Isuzu applications.

Common Applications:

• Isuzu Medium Duty Trucks – Commonly used for NPR, NQR, and similar medium-duty chassis models equipped with the 4JJ1 engine.
• Isuzu Excavators – Suitable for compact and mid-size excavator models utilizing the 4JJ1 power plant.
• Industrial Equipment – Various construction and agricultural machinery powered by the Isuzu 4JJ1 engine.

Important: Fitment information is based on common industry applications. Please verify your vehicle’s engine model and existing part number before purchasing.

Global Supply & Distribution

We maintain a robust global supply chain to serve international B2B buyers efficiently:

• Worldwide Shipping: Reliable logistics partners ensure delivery to all major continents including North America, Europe, Asia-Pacific, South America, Africa, and the Middle East.
• Major Ports & Industrial Centers: Expedited shipping available to key ports such as Los Angeles, Rotterdam, Shanghai, Dubai, Singapore, and Hamburg, as well as inland industrial hubs.
• Fast Processing: Orders are processed immediately upon payment receipt, with standard delivery times varying by destination and shipping method selected.
• Export Compliance: All products are sourced and shipped in compliance with international trade regulations, with proper documentation for customs clearance.
• Flexible Quantities: Low minimum order quantity (1 piece) for samples or small orders, with volume discounts available for bulk purchases.

Quality Assurance

We prioritize quality throughout our supply chain to ensure every gasket meets professional standards:

• OEM Specifications: Manufactured to match Isuzu’s original design tolerances and material specifications for the 4JJ1 engine.
• Material Testing: Metal layers are tested for thickness consistency, tensile strength, and heat resistance properties.
• Dimensional Accuracy: Each production batch is verified for proper bolt hole alignment, water jacket openings, and overall gasket geometry.
• Warranty Coverage: All orders include a standard 6-month warranty against manufacturing defects. Extended warranty options may be available upon request.
• Technical Support: Post-warranty video technical support is available to assist with installation questions or troubleshooting.

FAQ

Q: How do I verify that this gasket fits my Isuzu engine?
A: First, confirm your engine model is 4JJ1 (check the engine data plate or VIN). Then, locate the existing cylinder head gasket part number stamped on the gasket itself or listed in your engine service manual. If it matches 8-98291685-0 or 8982916850, this is the correct replacement. For additional verification, measure the cylinder bore diameter and compare with the gasket’s fire ring dimensions.

Q: Can I install this gasket without special tools?
A: While basic mechanical skills are sufficient, proper cylinder head gasket installation requires attention to specific procedures. We recommend using a torque wrench calibrated to the 4JJ1 engine specifications. The cylinder head bolts must be tightened in the correct sequence and to the manufacturer’s torque values (typically involving multiple stages and angle-tightening steps). Always clean both mating surfaces thoroughly and check for warpage before installation. Video technical support is available if you need guidance.

Q: What is the expected service life of this gasket?
A: When installed correctly on a properly prepared engine, this genuine OEM gasket is designed to last the typical engine overhaul interval for the Isuzu 4JJ1, which can exceed 500,000 kilometers in truck applications or 10,000 hours in excavator use under normal operating conditions. Service life depends on factors such as engine operating temperature, boost pressure levels, maintenance practices, and whether the engine has been modified. Regular coolant and oil changes help maximize gasket longevity.