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Air Filter Element – Fits Yanmar 2QM, 3HM, 3QM Series Marine Engines (Replaces 124770-12540)

Sale price $29.99 Regular price $47.00
Shipping calculated at checkout.

Air Filter Element – Fits Yanmar 2QM, 3HM, 3QM Series Marine Engines (Replaces 124770-12540) 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 Air Filter Element – Fits Yanmar 2QM, 3HM, 3QM Series Marine Engines (Replaces 124770-12540) is designed for a wide range of Yanmar marine and industrial diesel engines. It filters intake air to protect sensitive internal engine components from dust, debris, and other airborne contaminants, ensuring optimal performance and longevity.

This part is a direct replacement for Yanmar OEM part number 124770-12540.

  • Installs directly into the existing air filter housing with no modifications required.

Part Number Matrix

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

Brand Part Number
Yanmar 124770-12540

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This air filter fits a variety of marine and industrial engines from Yanmar.

Brand Model Notes
Yanmar 2QM
Yanmar 2QM15
Yanmar 2QM20
Yanmar 2QM20Y Confirmed by Amazon seller
Yanmar 3HM
Yanmar 3HM35
Yanmar 3HM35C Confirmed by Amazon seller
Yanmar 3HM35F
Yanmar 3HMF
Yanmar 3QM
Yanmar 3QM30
Yanmar 3QM30Y Confirmed by Amazon seller
Yanmar 3JH2L-NE Confirmed by Amazon seller
Yanmar 3JH2L-TNE Confirmed by multiple sources
Yanmar 3JH2LTE-K Confirmed by Amazon seller
Yanmar 3TNE84MT-EG1 Confirmed by Amazon seller
Yanmar 3TNE88 Listed by Diesel Parts Direct
Yanmar 3TNE88MC-EG1 Confirmed by Amazon seller
Yanmar 3TNV88 Listed by Diesel Parts Direct
Yanmar 4JH2L-HTNE Confirmed by Amazon seller
Yanmar 4JH2L-TNE Confirmed by Amazon seller
Yanmar 4JH2LHTE-K Confirmed by Amazon seller
Yanmar 4JH2LTE-K Confirmed by Amazon seller
Yanmar 4JHL-HTN Confirmed by Amazon seller
Yanmar 4JHL-N Confirmed by Amazon seller
Yanmar 4JHL-TN Confirmed by Amazon seller
Yanmar 4TNE84MT-EG1 Confirmed by Amazon seller
Yanmar 4TNE88 Listed by Diesel Parts Direct
Yanmar 4TNE88M-EG1 Confirmed by Amazon seller
Yanmar 4TNV84T Listed by Diesel Parts Direct
Yanmar 4TNV84T-G Listed by Bottom Line Marine

Technical Specs

Product Type
Air Filter Element
Installation
Direct replacement, fits into existing housing
Dimensions
16.0" L x 11.5" W x 12.0" H
Warranty
Varies by retailer (6-month from Diesel Parts Direct)

What’s in the Box

  • 1 x Air Filter Element (124770-12540)

Installation Notes

  1. Locate the air filter housing on your engine. It is typically a black plastic or metal box connected to the air intake.
  2. Open the air filter housing. This may require releasing clips, removing wing nuts, or unscrewing bolts.
  3. Carefully remove the old air filter element, noting its orientation.
  4. Wipe the inside of the housing clean with a cloth to remove any dust or debris.
  5. Insert the new air filter element, ensuring it is seated correctly and securely within the housing.
  6. Close the air filter housing and fasten the clips, nuts, or bolts.

Troubleshooting & FAQ

How do I know if this air filter fits my engine?

This filter is compatible with a wide range of Yanmar marine and industrial engines, including the 2QM, 3HM, and 3QM series. Please review the detailed "Engine & Model Compatibility" table and cross-reference your specific engine model to ensure a perfect match.

What are the signs of a clogged air filter?

Common symptoms of a dirty or clogged air filter include reduced engine power, increased black smoke from the exhaust, higher fuel consumption, and difficulty starting the engine. Regular inspection is recommended.

How often should I replace my engine's air filter?

Replacement intervals depend on the operating environment. For leisure marine use in clean conditions, an annual inspection and replacement as needed is sufficient. In dusty or commercial environments, check the filter more frequently, such as every 100-200 hours of operation.

Can I clean and reuse this air filter?

This is a disposable filter element and should not be cleaned with compressed air or liquids, as this can damage the filter media and compromise its effectiveness. Always replace a dirty filter with a new one.

What's the difference between this and the OEM Yanmar filter?

This is an aftermarket replacement part designed to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function. It offers comparable performance and filtration at a more competitive price point.

Is any special tool required for installation?

No special tools are typically needed. Installation usually involves opening the air filter housing by hand via clips or wing nuts. In some cases, a basic screwdriver or wrench may be required to access the housing.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

Payment & Security

Payment methods

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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