How to Match This Part
This aftermarket oxygen sensor replaces Yamaha 67H-8592A-00 (catalog form 67H-8592A-00-00). It threads into the exhaust housing on selected Yamaha V6 two-stroke EFI outboards and reports exhaust oxygen content so the engine control unit can hold the fuel-air ratio. This unit is new production, not a remanufactured core.
Match this part in this order:
1. OEM number on the removed sensor or in your parts catalog (67H-8592A-00 / 67H-8592A-00-00, or superseding 67H-8592A-01 / 67H-8592A-01-00)
2. Model code and year — Yamaha DX150, LX150, SX150, VX150, LX200, or SX200 in the years listed below
3. Physical form — compare the product images with the sensor currently fitted
Identify the form from the product images: hex sensor body, slotted shield over the sensing tip, metal sealing washer under the hex, and an integral lead ending in a rectangular 2-pin connector with a black protective boot on the cable. Yamaha used more than one oxygen-sensor number across the V6 range — if your original is 65L-8592A or 68F-8592A, this is a different sensor.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands. Yamaha catalogs the same sensor with a trailing -00 suffix (67H-8592A-00-00 / 67H-8592A-01-00).
| Type |
Brand |
Part Number |
Notes |
| OEM |
Yamaha Outboard |
67H-8592A-00 |
Primary reference; also listed as 67H-8592A-00-00 |
| OEM |
Yamaha Outboard |
67H-8592A-01 |
Supersedes 67H-8592A-00; also listed as 67H-8592A-01-00 |
| Aftermarket |
Sierra |
18-7655 |
Direct aftermarket replacement |
Part numbers are listed for identification only. This is an aftermarket part manufactured by JLM Marine and is not sold as a genuine Yamaha component.
Compatible Engine Models
Confirm your engine model and year in the table below. For Yamaha owners:
Yamaha Serial Number Guide
and
Yamaha Parts Diagrams.
On Yamaha outboards the identification plate is on the port-side transom clamp bracket.
| Engine Model |
HP |
Years |
Notes |
| DX150 |
150 |
2001–2005 |
V6 2-stroke EFI |
| LX150 |
150 |
2001 |
V6 2-stroke EFI |
| SX150 |
150 |
2001–2004 |
V6 2-stroke EFI |
| VX150 |
150 |
2001–2004 |
V6 2-stroke EFI |
| LX200 |
200 |
2001 |
V6 2-stroke EFI |
| SX200 |
200 |
2001–2005 |
V6 2-stroke EFI |
Match the OEM number on the sensor you remove. Adjacent Yamaha V6 oxygen-sensor families (65L-8592A / 68F-8592A) are not this listing.
Technical Specifications
| Specification |
Value |
| Part type |
Oxygen (O2 / lambda) sensor for EFI exhaust |
| Primary OEM number |
67H-8592A-00 |
| Mounting |
Threaded into the exhaust housing |
| Electrical connection |
Integral lead with rectangular 2-pin connector; protective boot on cable |
| Visible form |
Hex body, slotted tip shield, metal sealing washer |
| Condition |
New production — not remanufactured |
Installation Guide
1
Allow the engine and exhaust housing to cool fully. Disconnect the battery negative cable before unplugging the sensor lead.
2
Note the cable routing, then unplug the connector. Unscrew the old sensor from the exhaust housing with the correct oxygen-sensor socket or wrench on the hex — do not crush the lead.
3
Confirm the OEM number and connector layout match this 67H-8592A-00 assembly. Thread the new sensor in by hand to avoid cross-threading, then tighten snugly on the hex. Follow the Yamaha service manual for your model for tightening and thread treatment.
4
Reconnect the plug until it locks, restore the battery, start the engine, and confirm there is no exhaust leak at the bung and that the EFI system runs without an oxygen-sensor fault.
Note: Professional installation is recommended to ensure safety and optimal performance.
Troubleshooting & FAQ
Is this an OEM or aftermarket part?+
This is an aftermarket JLM Marine replacement matched to Yamaha 67H-8592A-00. It is not a genuine Yamaha part.
My Yamaha uses 65L-8592A or 68F-8592A — will this fit?+
No. Those are different Yamaha oxygen-sensor families used on other V6 models (including many HPDI / 65L applications). Order only if your removed sensor or catalog calls for 67H-8592A-00 or 67H-8592A-01.
How do I confirm connector fit?+
Compare the product images with your removed sensor: this assembly uses an integral lead with a rectangular 2-pin connector and a black protective boot on the cable. If your harness uses a different plug shape or pin count, do not force a connection.
Is this a remanufactured sensor?+
No. This listing is new production, not a rebuilt or remanufactured core.
Why Choose JLM MARINE?
-
Precision Fit: Form and connector layout matched to Yamaha 67H-8592A-00 oxygen sensor applications.
-
Quality Control: Each batch is inspected for dimensional consistency and workmanship.
-
Direct from Manufacturer: Aftermarket marine parts engineered for reliable EFI exhaust sensing.