> > > >
Oxygen Sensor 35668-ZY6-003 – Fits Honda BF115 BF135 BFT150

Oxygen Sensor 35668-ZY6-003 – Fits Honda BF115 BF135 BFT150

Vendor: JLM Marine
Availability: In Stock
Product Type: Sensor
$159.77
$159.77
Subtotal: $159.77

Free Shipping

Free standard shipping on all orders under 1 KG

Worry-Free Returns

Learn More.
Oxygen Sensor 35668-ZY6-003 – Fits Honda BF115 BF135 BFT150

Oxygen Sensor 35668-ZY6-003 – Fits Honda BF115 BF135 BFT150

$159.77
Description

How to Match This Part

This aftermarket oxygen sensor replaces Honda Marine 35668-ZY6-003 (Honda LAF / lean air-fuel sensor). It threads into the exhaust passage on selected Honda BF115D, BF135A4, BFT115A, and BFT150A four-stroke outboards and reports exhaust oxygen so the ECM can trim fuel.

Match this part in this order:
1. OEM number on the removed sensor or in your Honda parts catalog (35668-ZY6-003)
2. Model code — BF115D / DK1, BF135A4 / AK2, BFT115A, or BFT150A in the table below
3. Physical connector and thread — compare the product images with the sensor you remove before ordering (sealed 4-pin rectangular plug on a blue-sheathed pigtail)

This is not Honda 35655-ZY3-003 / 35655-ZY3-013 (the oxygen sensor used on BF175 / BF200 / BF225). If your catalog or removed sensor shows a ZY3 number for a V6 outboard, order that listing instead.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers before you order.

Type Brand Part Number Notes
OEM Honda Marine 35668-ZY6-003 Primary reference (LAF / air-fuel ratio sensor)
OEM Tohatsu HZY635668003 Equivalent OEM number on Tohatsu-branded applications
Aftermarket Sierra 18-7659 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 Honda or Tohatsu component.

Compatible Engine Models

Confirm your engine model code below, then match the OEM number on the sensor you remove. On Honda outboards the identification plate is typically on the stern bracket. Year and serial cut-offs vary by catalog revision, so OEM number match is the safest check.

Engine Model HP Notes
BF115D / DK1 115 4-stroke I4 EFI; when catalog/OEM shows 35668-ZY6-003
BFT115A 115 4-stroke I4 EFI; when catalog/OEM shows 35668-ZY6-003
BF135A4 / AK2 135 4-stroke I4 EFI; when catalog/OEM shows 35668-ZY6-003
BFT150A 150 4-stroke I4 EFI; when catalog/OEM shows 35668-ZY6-003

Do not order this sensor for Honda BF175 / BF200 / BF225 applications that specify 35655-ZY3-003 or 35655-ZY3-013.

Technical Specifications

Specification Value
Part type Oxygen / LAF (lean air-fuel) sensor for programmed fuel injection
Primary OEM number 35668-ZY6-003
Related Tohatsu OEM HZY635668003
Electrical connector Sealed 4-pin rectangular plug on pigtail harness
Mounting Threaded hex body into the exhaust manifold / exhaust passage
Engine type Honda Marine 4-stroke I4 EFI outboard (115–150 HP class when OEM matches)
Brand positioning Aftermarket replacement — not genuine Honda OEM

Installation Guide

1

Allow the engine and exhaust components to cool fully. Disconnect the battery negative cable before unplugging the sensor connector.

2

Note the harness routing and clip positions, then release the lock tab and unplug the four-pin connector. Unscrew the old sensor from the exhaust boss with an oxygen-sensor socket or slotted wrench on the hex — do not pull on the cable.

3

Confirm the OEM number 35668-ZY6-003 and the sealed 4-pin connector match this assembly and the product images. Keep the sensing tip and protection cap free of oil, grease, sealant, and solvent. Thread the new sensor in by hand to avoid cross-threading, then tighten on the hex per the Honda service manual for your model.

4

Route the pigtail along the original path, reconnect the plug until it locks, restore any harness clips, reconnect the battery, start the engine on a water supply, and confirm there is no exhaust leak at the bung and no 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 Honda 35668-ZY6-003. It is not a genuine Honda part.

How do I confirm this fits my engine?+

Start with the model code on your stern bracket plate (BF115D / DK1, BF135A4 / AK2, BFT115A, or BFT150A), then confirm the number on your original sensor is 35668-ZY6-003 (or Tohatsu HZY635668003) and that the connector is the same sealed four-pin shape shown in the product images.

Will this fit Honda BF175 / BF200 / BF225?+

No. Those V6 models use a different Honda oxygen-sensor family (35655-ZY3-003 / 35655-ZY3-013). Order only if your removed sensor or catalog calls for 35668-ZY6-003.

Does this listing include model years?+

Published year cut-offs differ across catalogs, so this listing does not print a year range. Match the OEM number on the sensor you remove, then confirm the connector against the product images.

Why Choose JLM MARINE?

  • Precision Fit: Cross-referenced to Honda 35668-ZY6-003 oxygen / LAF sensor applications on BF115D, BF135A4, BFT115A, and BFT150A.
  • Quality Control: Each batch is inspected for dimensional consistency and workmanship.
  • Direct from Manufacturer: Aftermarket marine parts engineered for reliable exhaust oxygen sensing on Honda programmed-fuel-injection outboards.
Shipping

We can ship to virtually any address in the world with free shipping available for most regions.

For our typical US and Canadian customers , our shipping timeframes are as follows:

  • Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
  • US warehouse shipment: orders will be delivered within 5 days after placing the order.
  • China warehouse shipment: orders will be delivered about 12 days after placing the order.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

About JLM Marine

Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.

As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.

We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.

Search
Add to garage

Parts Finder

Use our Parts Finder to quickly locate the correct parts for your engine. Search by Make, HP, Stroke, Model, Year, and SN. Select only the fields available — you don’t need to fill all options (e.g., leave Year blank if not applicable).

Our database is currently being updated and expanded. More models, including Yamaha, Mercury, and Suzuki, are being verified and uploaded.
Search
Add to garage

Related Products

Example product title
$159.77
$159.77
Example product title
$159.77
$159.77
Example product title
$159.77
$159.77
Example product title
$159.77
$159.77
Example product title
$159.77
$159.77
Example product title
$159.77
$159.77

Recently Viewed Products