Oxygen Sensor – Fits Yamaha 150HP/200HP V6 Outboard Motors

Oxygen Sensor – Fits Yamaha 150HP/200HP V6 Outboard Motors (Replaces 67H-8592A-00, 67H-8592A-01)

This oxygen sensor is designed for select Yamaha 2-Stroke V6 outboard engines from 150HP to 200HP (1999–2005), including the PX150, DX150, LX150, VX150, and LX200 series. It plays a critical role in the Electronic Fuel Injection (EFI) system by measuring the oxygen content in the exhaust, allowing the engine's computer to maintain an optimal fuel-to-air ratio for performance and efficiency.

It serves as a direct replacement for Yamaha part numbers 67H-8592A-00-00 and 67H-8592A-01-00, and also cross-references with Sierra part 18-7655.

• Function: Monitors exhaust oxygen levels for optimal fuel-air mixture in EFI systems.
• Installation: Threaded directly into the exhaust housing with a simple wired electrical connector.
• Compatibility: Engineered for gasoline-fueled Yamaha 2-stroke V6 engines.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Oxygen Sensor (67H-8592A-01)

Installation Guide

1. Safety First: Ensure the engine is completely cool and the battery is disconnected before starting.
2. Locate the Sensor: Find the old oxygen sensor, which is threaded into the exhaust housing assembly.
3. Disconnect Wiring: Carefully unplug the wired electrical connector. Take note of the routing and connection points.
4. Remove the Old Sensor: Using an appropriate oxygen sensor socket or wrench, unscrew and remove the old sensor. It may be tight, so apply steady pressure.
5. Install the New Sensor: Thread the new oxygen sensor into the housing by hand to prevent cross-threading. Tighten it securely with a wrench, but do not overtighten.
6. Reconnect Wiring: Plug in the new sensor's electrical connector, ensuring it clicks into place for a secure fit.
7. Final Checks: Reconnect the battery. Start the engine and check for any exhaust leaks near the sensor or any engine warning lights.

Troubleshooting & FAQ

How do I confirm this sensor fits my Yamaha engine?
Check your engine's model and year against the "Compatible Engine Models" table. This sensor is designed for specific Yamaha 2-Stroke V6 models from 150HP to 200HP (1999–2005). Verifying the OEM part number (67H-8592A-00 or 67H-8592A-01) on your old part is the most reliable method.

What are the signs of a failing oxygen sensor?
Common symptoms include poor fuel economy, rough idling, decreased engine performance, failed emissions tests, or a "Check Engine" light. The engine's EFI system relies on this sensor to calculate the correct fuel-air mixture.

Is this a direct replacement for the original Yamaha part?
Yes, this is a direct aftermarket replacement for Yamaha OEM part numbers 67H-8592A-00-00 and 67H-8592A-01-00, as well as Sierra part 18-7655. It is designed to match the original's fit and function.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.