18-3673 434841 Thermostat Kit With Hoses for Johnson Evinrude V4 Crossflow 65 140HP

This Thermostat Kit w Hoses is a cooling system component compatible with Johnson Evinrude V4 Crossflow 65-140HP outboard engines and matches OEM Part# 18-3673 and 434841.

Product Overview

This thermostat kit with hoses is designed for Johnson and Evinrude V4 Crossflow outboard engines ranging from 65 to 140 horsepower. It regulates engine temperature by controlling coolant flow, ensuring optimal performance and preventing overheating. Boat owners and marine mechanics will find this thermostat kit essential for maintaining their outboard's cooling system.

Key Features & Performance

• Includes both thermostat and hoses for a complete cooling system replacement
• Direct replacement for OEM part numbers 18-3673 and 434841
• Constructed from corrosion-resistant materials for marine environments
• Precision temperature regulation for consistent engine operation
• Easy installation with pre-formed hoses and gaskets

Fitment & Compatibility

• Johnson Evinrude V4 Crossflow outboard engines
• 65HP to 140HP models
• Compatible with various model years using these part numbers

Common Uses

• Replacing worn or failed thermostats in Johnson/Evinrude outboards
• Cooling system maintenance during engine rebuilds or winterization
• Restoring proper cooling system function with a new thermostat kit

Technical Specifications

• Part Number(s): 18-3673, 434841
• Material: Brass and stainless steel components
• Temperature Rating: Meets OEM specifications

Frequently Asked Questions

Q: Is this thermostat kit compatible with my 1988 Johnson 115HP V4? A: This kit fits Johnson Evinrude V4 Crossflow engines from 65-140HP, which includes many 115HP models. Verify your engine's part number matches 18-3673 or 434841 for exact fitment.

Q: Does the kit include everything needed for installation? A: Yes, the kit includes the thermostat, hoses, and necessary gaskets for a complete replacement. No additional parts are typically required.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.