129470-49801 76.5°C Thermostat for Yanmar 3JH 4JH Marine Diesel Engine 3TNV88

Product Overview

This aftermarket replacement thermostat is identified as a 76.5℃ unit for the listed Yanmar 3JH, 4JH, and 3TNV88 marine diesel engine applications, and it cross-references part number 129470-49801. A thermostat regulates coolant flow as engine temperature changes to support normal temperature control.

Key Features & Performance

• Thermostat designed for temperature regulation within an engine cooling system
• Identified temperature specification of 76.5℃
• Cross-references part number 129470-49801
• Suitable for servicing or replacing the corresponding thermostat in the listed engine applications

Fitment & Compatibility

• for Yanmar 3JH applications
• for Yanmar 4JH applications
• for Yanmar 3TNV88 applications

Common Uses

• Replacing a worn, damaged, or malfunctioning engine thermostat
• Routine maintenance of the engine cooling system
• Servicing the coolant temperature regulation system

Technical Specifications

• Product Type: Thermostat
• Temperature: 76.5℃
• Part Number(s): 129470-49801
• Engine Application(s): Yanmar 3JH, 4JH, 3TNV88

Frequently Asked Questions

Q: What does this thermostat do? A: A thermostat regulates coolant flow as the engine warms, supporting normal temperature control within the cooling system.

Q: How should fitment be verified? A: Compare the complete part number 129470-49801 and the complete engine model designation with the existing component and equipment records before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.