Engine Full Gasket Kit 6731-11-9990 for Komatsu 4D102 PC130-6 Diesel Engine Seal High Temp

Product Details

Product Overview

This premium Engine Full Gasket Kit, identified by part number 6731-11-9990, is a critical sealing solution specifically designed for the Komatsu 4D102 diesel engine. It is the primary component for overhauling the cylinder head and block assembly, ensuring a leak-free seal under extreme operating conditions.

Engineered for the demanding environment of the Komatsu PC130-6 excavator, this gasket set is constructed with high-temperature resistant materials. This makes it an ideal choice for heavy-duty applications in arid and desert climates, such as those found in the Middle East, where thermal expansion and sand ingress are common challenges.

As a direct replacement for OEM number 729436-92601, this kit provides a complete set of gaskets, seals, and O-rings required for a full engine rebuild. It is a cost-effective, high-quality alternative to original manufacturer parts, offering reliable performance without compromising on fitment or durability.

Key Features & Benefits

• Complete Overhaul Solution: Includes every necessary gasket and seal for the cylinder head, oil pan, valve cover, and timing cover, eliminating the need to source individual components.
• High-Temperature Resilience: Manufactured with advanced composite materials and steel cores, designed to withstand the intense heat cycles of turbocharged diesel engines, preventing blowouts and leaks.
• Precision Fitment: Laser-cut to exact OEM specifications for the Komatsu 4D102 engine, ensuring a perfect seal against cylinder block and head surfaces without modification.
• Desert & Extreme Climate Optimized: Specifically formulated to resist hardening and cracking in high-ambient-temperature environments, maintaining elasticity where standard gaskets may fail.
• Cost-Effective Rebuild: Provides factory-quality performance at a fraction of the dealer price, reducing total cost of ownership for your PC130-6 excavator.
• Rigorous Quality Control: Each kit undergoes outgoing video inspection and machinery test report verification to ensure dimensional accuracy and material integrity.

Technical Specifications

OEM Cross-Reference

This Full Gasket Kit is a direct replacement for the following original manufacturer part numbers. Please verify your existing part number before ordering.

• Primary OEM: 729436-92601
• Alternate Reference: 6731-11-9990

Note: The part number 6731-11-9990 is the aftermarket standard reference for this specific Komatsu application. Always confirm compatibility with your engine serial number.

Compatibility

This gasket kit is specifically designed for the Komatsu 4D102 diesel engine. It is commonly used for the following equipment models:

• Excavator: Komatsu PC130-6
• Engine Series: Komatsu 4D102 (Naturally Aspirated & Turbocharged variants)

Fitment Note: This kit is designed for the 4D102 engine block. It is not compatible with the earlier 4D100 or later 4D104 series without verification. Please check your engine casting number or existing gasket shape for exact fitment.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to industrial centers worldwide. Our export experience covers major markets including:

• Middle East & Africa: UAE, Saudi Arabia, Qatar, Kuwait, Egypt, Nigeria, South Africa – ideal for desert and high-heat applications.
• North & South America: USA, Canada, Brazil, Chile, Mexico – serving mining and construction fleets.
• Europe & CIS: Germany, UK, Poland, Russia, Kazakhstan – supporting heavy equipment rebuilders.
• Asia-Pacific: Australia, Indonesia, Philippines, India, Thailand – near-shore for rapid restocking.

We offer flexible shipping options via sea freight (FOB/CIF), air express (DHL/FedEx/TNT), and rail freight to landlocked regions. All shipments are fully documented for customs clearance, including commercial invoices, packing lists, and certificates of origin.

Quality Assurance

Every Full Gasket Kit is manufactured under strict ISO-compliant processes to ensure consistent quality. Our quality assurance program includes:

• Material Certification: Raw materials are sourced from certified suppliers and tested for heat resistance (up to 300°C) and compression recovery.
• Dimensional Inspection: Each gasket is checked against OEM blueprints using CMM (Coordinate Measuring Machine) for perfect port alignment and bolt hole spacing.
• Leak Testing: Sample kits from every batch undergo pressure testing to validate sealing integrity.
• Video Inspection: Outgoing inspection videos are available upon request to verify packaging and product condition before shipment.
• Warranty: Standard warranty covers manufacturing defects. Extended warranty options are available for bulk or fleet orders.

FAQ

Q1: Will this gasket kit fit my Komatsu PC130-6 if the engine has been rebuilt before?
A: Yes, this kit is designed to OEM specifications and will fit standard bore 4D102 engines. However, if the engine block or cylinder head has been resurfaced (decked) or bored oversize, you must ensure the gasket thickness and bore diameter match. We recommend comparing your old gasket to the new one for port alignment before installation.

Q2: What is the recommended installation procedure for this high-temp gasket?
A: For best results, clean all mating surfaces thoroughly, removing any old gasket material. Do not apply sealant unless specified. Follow the Komatsu factory torque sequence and tightening specifications for the 4D102 cylinder head (usually 3-step tightening to final torque). Allow the engine to warm up and re-torque the head bolts after the first heat cycle if recommended by your service manual.

Q3: How do I verify the authenticity of this gasket kit against counterfeit parts?
A: Authentic kits feature precise laser-cut edges, consistent material thickness, and clear part number stamping on the main head gasket. We provide a video of outgoing inspection showing the packaging and product condition. If you require further verification, we can supply a Material Test Report (MTR) for the batch upon request. Always purchase from verified distributors to avoid substandard silicone copies.