Yamaha - Oil Pressure Switch Assembly - Engine Protection Sensor - 64J-82504-00-00

Overview

Oil pressure is one of those things you don’t want to guess on when you’re out on the water. I’ve seen engines shut down or throw alarms just because the switch wasn’t reading right. This piece is what tells your system everything’s good—or that something needs attention fast. It’s a small part, but it plays a big role in protecting your motor from serious damage.

Key Features

• Accurate Pressure Monitoring – Detects oil pressure levels and sends signals to the engine system.
• OEM Electrical Compatibility – Built to match Yamaha wiring and signal requirements.
• Direct Thread Installation – Screws into the engine block for a secure and reliable fit.
• Engine Protection Support – Helps trigger warnings or shutdowns to prevent damage.

Engine & Boat Compatibility

Fits Yamaha outboard engines equipped with oil pressure monitoring systems. Commonly used across mid- to high-horsepower outboards on fishing boats, center consoles, and recreational vessels.

FAQ

Q: What are signs of a bad oil pressure switch?
A: False alarms, no warning at all, or inconsistent readings are common signs.

Q: Can a faulty switch shut down my engine?
A: Yes, if it sends the wrong signal, it can trigger a safety shutdown even if pressure is fine.

Q: Is this the same as an oil pressure sensor?
A: It serves a similar purpose, but this switch typically triggers alerts rather than giving detailed readings.

Q: How does saltwater exposure affect this part?
A: Corrosion around the connector or threads can impact performance over time.

Q: Is installation difficult?
A: It’s usually a simple thread-in replacement, just make sure it’s properly sealed and connected.