Engine Temp Sensor – Fits Suzuki 25HP 30HP (Replaces 13640-32G20, 1364032G20000, 13640-32G20-000)

Product Details

This Engine Temp Sensor – Fits Suzuki 25HP 30HP (Replaces 13640-32G20, 1364032G20000, 13640-32G20-000) is an aftermarket replacement temperature sensor designed for Suzuki outboard motors rated at 25HP and 30HP. It provides accurate engine temperature monitoring to protect your motor from overheating and ensure optimal performance.

This sensor directly replaces OEM part numbers 13640-32G20, 1364032G20000, and 13640-32G20-000, offering a cost-effective alternative to factory components.

• Direct-fit replacement for Suzuki 25HP and 30HP outboard engines
• Precise temperature monitoring for engine protection
• Factory-equivalent connector for plug-and-play installation

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Technical Specs

Part Type

Engine Temperature Sensor

OEM Reference

13640-32G20

Application

Suzuki Outboard Motors

Fitment

25HP, 30HP

What's in the Box

• 1 × Suzuki Outboard Temp Sensor

Installation Notes

1. Disconnect the battery and allow the engine to cool completely before beginning work.
2. Locate the existing temperature sensor on the engine block or cylinder head.
3. Disconnect the electrical connector from the old sensor.
4. Carefully unscrew the old sensor using an appropriate wrench or socket.
5. Inspect the mounting hole for debris or damage and clean if necessary.
6. Install the new sensor by hand first to avoid cross-threading, then tighten to manufacturer specifications.
7. Reconnect the electrical connector, ensuring it clicks securely into place.
8. Reconnect the battery and start the engine to verify proper operation and check for leaks.

Troubleshooting & FAQ

How do I know if my temperature sensor is failing?

Common symptoms include inaccurate temperature gauge readings, overheating warnings when the engine is cool, or the engine running hotter than normal. A faulty sensor may also trigger warning lights or alarms on your dashboard.

Will this sensor fit my exact Suzuki model?

This sensor is designed for Suzuki 25HP and 30HP outboard motors that originally used OEM part numbers 13640-32G20, 1364032G20000, or 13640-32G20-000. Always verify your current part number before ordering.

Do I need to drain coolant before replacing the sensor?

Most Suzuki outboard temperature sensors are installed in locations where minimal coolant loss occurs. However, have a container ready to catch any residual fluid and top off the cooling system if necessary after installation.

Can I install this myself or do I need a mechanic?

If you have basic mechanical skills and the proper tools, this is a straightforward replacement. However, proper torque specifications and electrical connections are critical, so professional installation is recommended if you're uncertain.

What's the difference between OEM and this aftermarket sensor?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

How often should temperature sensors be replaced?

Temperature sensors typically last many years under normal conditions. Replace when you experience erratic temperature readings, engine overheating, or when diagnostic testing confirms sensor failure.

What are your shipping options and costs?

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

What warranty and return options do you offer?

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Will this sensor cause any error codes?

When properly installed on compatible models, this sensor operates exactly like the OEM part and will not trigger error codes. Ensure all electrical connections are secure and the sensor is torqued correctly.

Safety & Important Info

• Verify images/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
• This is an aftermarket replacement, not an OEM component.
• Professional installation is recommended for safety and performance.

About Sea Sierra

• Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
• Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
• Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.