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Zinc Pencil Anode Kit – Fits Yanmar 4LHA, 6LP, 6LY (Replaces Yanmar 119773-92600, 01317T, 01318T, 119574-18790, 119574-44150)

Sale price $37.07 Regular price $59.00
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Zinc Pencil Anode Kit – Fits Yanmar 4LHA, 6LP, 6LY (Replaces Yanmar 119773-92600, 01317T, 01318T, 119574-18790, 119574-44150) is backordered and will ship as soon as it is back in stock.


Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This Zinc Pencil Anode Kit – Fits Yanmar 4LHA, 6LP, 6LY Marine Engines (Replaces 119773-92600) is designed for Yanmar marine diesel engines, including the 4LHA series (144–300 HP), 6LP series (315 HP), and 6LY series (all except 6LY3). It provides essential corrosion protection for heat exchangers and oil coolers.

This kit serves as a direct replacement for Yanmar part numbers 119773-92600, 01317T, 01318T, 119574-18790, and 119574-44150.

  • Installation: Threaded pencil anodes for engine heat exchangers, oil coolers, and the intercooler.
  • Corrosion Protection: Made from high-quality zinc to safeguard critical engine components from galvanic corrosion.
  • Complete Kit: Includes all necessary anodes for a standard engine service.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.

Brand Part Number
Yanmar 119773-92600
Yanmar 01317T
Yanmar 01318T
Yanmar 119574-18790
Yanmar 119574-44150

Engine & Model Compatibility

Confirm your engine model in the table below.

This kit fits a wide range of Yanmar marine diesel engines. Please verify your model is listed before ordering.

Brand Model Rated HP Stroke OEM Part No. Notes
Yanmar 4LHA-HTE 158-180 4-Stroke 119773-92600
Yanmar 4LHA-HTP 158-180 4-Stroke 119773-92600
Yanmar 4LHA-DTE 200-230 4-Stroke 119773-92600
Yanmar 4LHA-STE 230 4-Stroke 119773-92600
Yanmar 4LHA-DTZE 200-230 4-Stroke 119773-92600
Yanmar 4LHA-STZE 240 4-Stroke 119773-92600
Yanmar 4LHA-DTP 200-230 4-Stroke 119773-92600
Yanmar 4LHA-STP 240 4-Stroke 119773-92600
Yanmar 4LHA-DTZP 200-230 4-Stroke 119773-92600
Yanmar 4LHA-STZP 240 4-Stroke 119773-92600
Yanmar 6LP-DTE 315 4-Stroke 119773-92600
Yanmar 6LP-DTZE 315 4-Stroke 119773-92600
Yanmar 6LPA-DTP 315 4-Stroke 119773-92600
Yanmar 6LPA-DTZP 315 4-Stroke 119773-92600
Yanmar 6LP-STE 300 4-Stroke 119773-92600 24 valve engine
Yanmar 6LP-STZE 300 4-Stroke 119773-92600 24 valve engine
Yanmar 6LPA-STP 315 4-Stroke 119773-92600 24 valve engine
Yanmar 6LPA-STZP 315 4-Stroke 119773-92600 24 valve engine
Yanmar 6LY Series Various 4-Stroke 119773-92600 Does not fit 6LY3

Technical Specs

Product Type
Marine Engine Zinc Anode Kit
Installation
Threaded into heat exchangers, oil coolers, and intercooler
Material
Zinc
Connection
3/8" NPT (E-1F) and 1/2" NPT (E-2) threads
Dimensions
E-1F: 31.8 mm (1-1/4") length × 12.7 mm (1/2") diameter
E-2: 50.8 mm (2") length
Weight
0.37 kg (0.82 lbs) total kit weight
Fitting Type
Threaded pencil anodes
Thread Size
E-1F: 3/8" NPT, E-2: 1/2" NPT
Wrench Size
E-1F: 11/16"
Application
Corrosion protection for marine engine cooling systems
Replacement Interval
Inspect regularly, replace when 50% eroded
Warranty
1 year (manufacturer dependent)

What’s in the Box

  • 4 x Heat Exchanger and Oil Cooler Zinc Anodes (119574-44150)
  • 1 x Intercooler Zinc Anode (119574-18790)

Installation Notes

  1. Locate the existing pencil anodes on the engine's heat exchanger, oil cooler, and intercooler. Refer to your engine service manual for exact locations.
  2. Unscrew the old anode plugs using the correct wrench (e.g., 11/16" for the E-1F anodes).
  3. Inspect the remaining portion of the old anodes. They must be replaced when they are approximately 50% eroded to maintain protection.
  4. Clean the threads on the housing to ensure a good electrical connection and seal.
  5. Install the new zinc anodes, ensuring they are screwed in securely. Do not overtighten.
  6. After installation, run the engine and check all connections for any leaks.

Note: Some Yanmar engines may be mated to a ZF transmission which requires its own separate anode. This fifth anode is not included in this kit and must be sourced separately if needed.

Troubleshooting & FAQ

How do I know if this anode kit fits my Yanmar engine?

This kit is specifically designed for Yanmar 4LHA, 6LP, and 6LY series engines (excluding the 6LY3 model). Always confirm your engine model is listed in our compatibility table and cross-reference the OEM part number 119773-92600 with your service manual.

What is the purpose of a zinc pencil anode?

A zinc anode is a sacrificial metal component. It protects the vital, more expensive metal parts of your engine's cooling system (like the heat exchanger, aftercooler, and oil cooler) from galvanic corrosion by corroding first.

How often should I inspect and replace these anodes?

Anodes should be inspected as part of your regular engine maintenance schedule, typically every few hundred hours or at least annually. They must be replaced when they are 50% eroded to ensure the engine remains protected.

What are the signs of a failing or depleted anode?

Obvious signs include an anode that is heavily pitted, visibly thin, or completely missing upon inspection. If the anode is gone, your engine's internal components are actively corroding and unprotected.

My engine setup seems to have five anodes, but this kit only contains four of the smaller ones. Why?

The standard Yanmar engine configuration requires the four E-1F anodes and one E-2 anode included in this kit. However, some Yanmar engines are paired with a ZF transmission that has its own, separate pencil anode. That fifth anode for the transmission is not part of this engine kit and must be purchased separately.

What is the difference between the anode types in this kit?

This kit contains two types of anodes to fit different components. It includes four E-1F anodes with a 3/8" NPT thread for the heat exchanger and oil cooler, and one larger E-2 anode with a 1/2" NPT thread for the intercooler.

Is this a genuine OEM part?

This listing is for an aftermarket replacement, not an OEM part. It has been engineered to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function, using comparable high-quality materials. Our parts are produced in an ISO 9002 certified facility and are batch-inspected for quality assurance.

How much is shipping and how fast will I get my order?

We offer fast worldwide shipping, with a typical transit time of 5–15 days for most regions. Standard shipping is free. If available for your location, expedited shipping options and their costs will be presented at checkout.

What is the warranty and return policy?

This product is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard return window for items that are unused and in their original condition. For detailed instructions, please see our policy page or contact us directly.

Safety & Important Info

  • Verify images and specifications against your original part before purchasing. If any detail differs—even if your model is listed as compatible—do not order.
  • This is an aftermarket replacement component, not an Original Equipment Manufacturer (OEM) part.
  • Professional installation is highly recommended to ensure safety, proper fitment, and optimal performance.

About Sea Sierra

  • Pro-Grade Standards: We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world reliability and performance.
  • Fast Global Fulfillment: We provide free standard delivery to most regions worldwide, with typical transit times of just 5–15 days.
  • Manufacturer-Direct Value: By eliminating middlemen, we offer fair, direct pricing without compromising on materials or quality control.

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