17681-90J02 Thermostat Cover| Genuine Used Part

🔧 Product Description

Genuine Suzuki DF90, DF100, DF115 and DF140 Thermostat Cover Assembly - Part Number: 17681-90J02

A genuine used Suzuki thermostat cover for selected DF90, DF100, DF115 and DF140 four-stroke outboard motors.

The cast cover retains the thermostat within the cylinder-head cooling passage and seals the thermostat cavity against cooling-water pressure.

⚙️ Key Features

• Genuine used Suzuki Marine thermostat cover
• Current OEM part number 17681-90J02
• Supersedes earlier 17681-90J00 and 17681-90J01 covers
• Used with model-specific 60°C or 71°C thermostats
• Cast marine cooling-system component

🚤 Compatibility

Commonly used on

• Suzuki inline four-cylinder thermostat assemblies
• Original and A-series 90HP to 140HP cooling systems

Typically suits

• Suzuki DF90
• Suzuki DF100
• Suzuki DF115
• Suzuki DF140
• Suzuki DF100A
• Suzuki DF115A
• Suzuki DF140A
• Selected DF140AZ applications
• Suzuki-built Johnson 90HP, 115HP and 140HP four-stroke models where the matching Suzuki cover is specified
• HP Range: 90HP - 140HP
• Engine Type: Suzuki inline four-cylinder EFI four-stroke outboard
• Year Range: Approximately 2001 onward

🔌 Function

The cover holds the thermostat in position and seals the cooling passage so water flow is regulated according to engine temperature.

⚠️ Common Signs of Failure

• Cooling water leaks around the cover
• Cover is warped or cracked
• Mounting surface is corroded
• Thermostat seal repeatedly fails
• Salt deposits restrict the thermostat cavity
• Mounting threads are damaged
• Engine overheats or runs too cool because the thermostat is not seated correctly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 17681-90J02 → Supersedes 17681-90J01
• 17681-90J01 → Supersedes 17681-90J00
• 17681-90J00 earlier thermostat-cover reference

OEM / Related Numbers

• 17681-90J02
• 1768190J02
• 17681-90J02-000
• 17681-90J01
• 17681-90J00
• 17670-90J01 related 60°C thermostat
• 17670-90J11 related 71°C thermostat
• 11196-90J00 related water-return hose
• Related thermostat seal and mounting bolts

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Thermostat and seal included only where shown or stated
• Removed from running engine where applicable
• In good working condition unless otherwise stated