4BD1 Thermostat Seat 8-98023-526-0 Isuzu Engine Parts for Excavator & Genset

Product Details

Product Overview

This Isuzu 4BD1 Thermostat Seat (Part Number: 8-98023-526-0) is a precision-engineered cooling system component manufactured by. Designed specifically for the Isuzu 4BD1 diesel engine, this thermostat housing seat ensures proper sealing and positioning of the engine’s thermostat, maintaining optimal operating temperatures for heavy-duty applications.

Commonly used in construction machinery, agricultural equipment, industrial generators, and marine applications, this replacement part is critical for preventing engine overheating and maintaining thermal efficiency. Each unit undergoes rigorous outgoing inspection to meet OEM size specifications, providing reliable performance in demanding environments.

Key Features & Benefits

• Precision Fitment: Manufactured to OEM size specifications for direct replacement on Isuzu 4BD1 engines without modification
• Corrosion Resistance: Durable construction withstands constant exposure to coolant and high-temperature cycling
• Leak-Proof Design: Precision-machined seating surface ensures proper gasket compression and prevents coolant bypass
• Thermal Stability: Maintains structural integrity across extreme temperature ranges (-20°C to 120°C)
• Quick Identification: Marked with OEM cross-reference 8-98023-526-0 for easy verification against existing parts
• Application Versatility: Suitable for excavators, loaders, generators, marine engines, and agricultural tractors powered by 4BD1
• Cost-Effective Solution: Factory-direct pricing with 6-month warranty provides value compared to dealer alternatives

Technical Specifications

OEM Cross-Reference

This thermostat seat replaces or corresponds to the following original equipment numbers:

• Isuzu OEM: 8-98023-526-0
• Alternate Reference: 8-98023526-0 (without dashes)
• Compatible With: 4BD1 Thermostat Housing Assembly

Note: Always verify your existing part number before ordering. This part is designed as a direct replacement for the Isuzu 8-98023-526-0 application.

Compatibility

This thermostat seat is commonly used for the following applications equipped with the Isuzu 4BD1 diesel engine:

• Construction Equipment: Excavators, Wheel Loaders, Bulldozers
• Industrial Machinery: Generators, Compressors, Pumps
• Agricultural Equipment: Tractors, Harvesters, Sprayers
• Marine Applications: Workboats, Fishing Vessels, Auxiliary Power Units
• Material Handling: Forklifts, Telehandlers, Reach Stackers

Compatibility is inferred based on engine model. Actual fitment may vary by equipment manufacturer. Please verify your engine model and existing part configuration.

Global Supply & Distribution

maintains a robust global supply chain capable of shipping this 4BD1 thermostat seat to customers worldwide. Our distribution network covers:

• North America: Regular shipments to US ports (Los Angeles, Houston, New York) and Canadian hubs (Vancouver, Toronto)
• Europe: Fast delivery to Rotterdam, Hamburg, Antwerp, and Mediterranean ports
• Asia-Pacific: Direct shipping from Guangdong warehouse to Singapore, Australia, Japan, and Southeast Asian markets
• Middle East & Africa: Established routes to Dubai, Jeddah, Durban, and Lagos
• Latin America: Regular exports to Brazil, Chile, Colombia, and Mexico

We offer flexible shipping options (sea freight, air freight, express courier) with full export documentation including commercial invoice, packing list, and certificate of origin. Typical transit times: 7-15 days express, 15-30 days air freight, 30-45 days sea freight.

Quality Assurance

Every thermostat seat undergoes strict quality control procedures to ensure reliability:

• Manufacturing Standards: Produced in ISO-compliant facilities in Guangdong, China
• Dimensional Verification: 100% inspection of critical mounting surfaces and bolt hole alignment
• Material Certification: Castings are verified for proper metallurgical composition
• Testing: Machinery test report provided for each batch; video inspection available upon request
• Warranty Coverage: 6-month warranty against manufacturing defects with online after-warranty support
• Packaging Protection: Multi-layer packaging (plastic bag, box, carton) prevents damage during international transit

FAQ

Q: Will this thermostat seat fit my specific excavator model?
A: This part is designed for the Isuzu 4BD1 engine, not for specific equipment models. If your machine uses a 4BD1 diesel engine (common in Hitachi, Sumitomo, Kobelco, and other Japanese excavators from the 1980s-1990s), this seat should be compatible. We recommend removing your old thermostat seat and comparing the gasket pattern and mounting hole spacing before ordering.

Q: What is the installation procedure for this thermostat seat?
A: Installation typically involves: 1) Drain coolant below thermostat level, 2) Remove old thermostat housing bolts, 3) Clean gasket surfaces thoroughly, 4) Install new gasket (sold separately), 5) Position new thermostat seat with thermostat inside, 6) Torque bolts to manufacturer specifications (typically 20-30 Nm). Always consult your engine service manual for exact torque values and coolant refill procedures.

Q: How do I verify I have the correct part before installation?
A: Check for the OEM number 8-98023-526-0 stamped on your existing part. Measure the mounting bolt pattern (center-to-center distance) and compare with the new part. The thermostat opening diameter should match your existing thermostat (typically 50-55mm for 4BD1 engines). If dimensions match, the part is correct. Contact our technical support with photos if you need assistance.