Oxygen Sensor for Yamaha 150–200 HP HPDI 2-Stroke Outboards – Replaces 68F-8592A-00-00
Oxygen Sensor for Yamaha 150–200 HP HPDI 2-Stroke Outboards – Replaces 68F-8592A-00-00 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Oxygen Sensor for Yamaha 150–200 HP HPDI 2-Stroke Outboards – Repla...
Oxygen Sensor for Yamaha 150–200 HP HPDI 2-Stroke Outboards – Replaces 68F-8592A-00-00 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket oxygen sensor is designed for select Yamaha 2-Stroke HPDI outboards in the 150–200 HP range, including the L-TXR and Z-TXR model families listed below. The sensor provides oxygen-content feedback to the engine management system and is intended as a replacement for the corresponding original sensor when the OEM part number, connector, thread, and engine application match.
It replaces or cross-references Yamaha part numbers 68F-8592A-00-00, 65L-8592A-00-00, and 65L-8592A-01-00. Aftermarket interchange references include Sierra 18-7656 and CDI Electronics 9-32101.
- Threaded sensor design for the listed Yamaha HPDI applications.
- Includes the sensor wire harness and electrical connector shown for this replacement application.
- Use with the fuel and engine-oil system specified for your particular Yamaha outboard; this sensor does not define the engine's fuel or lubrication requirements.
Part Number Matrix
Use this matrix to compare the listed OEM and aftermarket references. Always confirm the number on your original sensor and verify the engine application before ordering.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Yamaha | 68F-8592A-00-00 | OEM reference | |
| Yamaha | 65L-8592A-00-00 | 65L-8592A-01-00 | OEM reference |
| Yamaha | 65L-8592A-01-00 | OEM reference | |
| Sierra | 18-7656 | Aftermarket interchange reference | |
| CDI Electronics | 9-32101 | Aftermarket interchange reference |
Engine & Model Compatibility
The following applications are the listed fitment range for this replacement sensor. Model suffixes, production year, serial number, connector, and original part number must all be checked before installation.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | LZ150TXR | 150 | 2-Stroke | 2001–2014 | 68F-8592A-00-00 | HPDI application; verify serial range |
| Yamaha | Z150TXR | 150 | 2-Stroke | 2001–2014 | 68F-8592A-00-00 | HPDI application; verify serial range |
| Yamaha | LZ175TXR | 175 | 2-Stroke | 2001–2014 | 68F-8592A-00-00 | HPDI application; verify serial range |
| Yamaha | Z175TXR | 175 | 2-Stroke | 2001–2014 | 68F-8592A-00-00 | HPDI application; verify serial range |
| Yamaha | LZ200TXR | 200 | 2-Stroke | 2001–2014 | 68F-8592A-00-00 | HPDI application; verify serial range |
| Yamaha | Z200TXR | 200 | 2-Stroke | 2001–2014 | 68F-8592A-00-00 | HPDI application; verify serial range |
Technical Specs
- Product Type
- Oxygen (O2) sensor
- Application
- Selected Yamaha 2-Stroke HPDI outboards
- Installation
- Threaded installation with gasket
- Connection
- Electrical connector with wire harness
- Housing Material
- Stainless steel
- Housing Color
- Silver/metallic
- Fitting Type
- Threaded
- Function
- Provides oxygen feedback for the engine management system
What’s in the Box
- 1 × Oxygen sensor
Installation Notes
- Allow the engine and exhaust components to cool completely, then disconnect the battery according to the service manual.
- Locate the existing oxygen sensor and remove any covers that obstruct access.
- Disconnect the electrical connector without pulling on the wires.
- Remove the old sensor with a suitable oxygen-sensor socket or wrench. Use an appropriate penetrating lubricant if the sensor is seized.
- Compare the replacement sensor with the old sensor, checking the thread, gasket, wire routing, and connector before installation.
- If permitted by the engine manufacturer's service instructions, apply a small amount of suitable anti-seize compound to the threads while keeping compound away from the sensing tip.
- Start the sensor by hand to prevent cross-threading, then tighten it to the manufacturer's specified torque. Do not overtighten.
- Reconnect the electrical connector and secure the harness away from hot or moving components.
- Reconnect the battery, start the engine, and check for leaks, warning lights, and proper operation.
Troubleshooting & FAQ
How can I tell if my oxygen sensor is failing?
Possible symptoms include reduced fuel economy, rough running, hesitation, misfiring, or an engine warning light. Diagnostic codes and sensor readings should be checked before replacing the part, since wiring, connectors, fuel delivery, and other engine-management components can produce similar symptoms.
What is the difference between this and a genuine Yamaha OEM sensor?
This listing is for an aftermarket replacement rather than a sensor sold under the Yamaha brand. It is intended to replace the listed OEM references, but fitment should be confirmed by matching the original part number, connector, thread, and engine application.
Do I need a special tool for installation?
An oxygen-sensor socket with a wire cutout is recommended because it helps protect the sensor harness during removal and installation. Use the tool size and service procedure specified for your engine.
How often should the oxygen sensor be replaced on an HPDI engine?
There is no universal replacement interval stated here. Inspect and test the sensor according to the engine service manual, and replace it when diagnostic results, physical damage, contamination, or operating symptoms indicate a fault.
Is this part a direct replacement for my engine model?
This replacement is intended for the Yamaha HPDI applications listed above. Confirm the complete model designation, year, serial range, connector, and original part number before ordering. If any of these details do not match, do not assume compatibility.
Is this an OEM part?
No. This listing is for an aftermarket replacement sensor. Yamaha part numbers are provided only as reference numbers for application and cross-reference purposes.
What are the shipping and warranty terms?
Shipping availability, delivery estimates, warranty coverage, and return conditions are determined by the store policies displayed at checkout or on the applicable policy pages. Contact support with your order details if assistance is needed.
Safety & Important Information
- Verify the model, year, serial range, connector, thread, and original part number before purchase.
- Do not install the sensor on an application that is not listed or otherwise verified.
- Disconnect power and allow hot engine and exhaust components to cool before service.
- Follow the Yamaha service manual for torque values, testing, and installation procedure.
- This is an aftermarket replacement, not a Yamaha OEM component.
- Professional installation is recommended when the correct application or service procedure is uncertain.
About Sea Sierra
- Pro-Grade Standards — We supply marine replacement parts selected for practical fitment and real-world service conditions.
- Global Fulfillment — Shipping options and delivery estimates are shown according to the destination and checkout availability.
- Manufacturer-Direct Value — We aim to provide replacement parts at a practical price while maintaining consistent product specifications.
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