Air Filter – Fits Yanmar 2GM, 3GM, 2YM, 3YM Series Marine Engines (Replaces 128270-12540, 128377-12530)

Air Filter – Fits Yanmar 2GM, 3GM, 2YM, 3YM Series Marine Engines

This aftermarket air filter element is designed for reliable performance in a wide range of Yanmar marine diesel engines, including the 2GM, 3GM, 2YM, and 3YM series. It ensures proper air intake and filtration, contributing to engine health and efficiency.

Engineered as a direct replacement for Yanmar parts 128270-12540 and 128377-12530, this filter provides a precise fit within the original factory air filter housing without requiring modifications.

• Installation: Direct drop-in replacement
• Fuel Type: Compatible with Diesel engines
• Connection: Cone-shaped with an inner metal core

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Air Filter Element (128270-12540/128377-12530)

Installation Guide

1. Locate the Air Filter Housing: Find the air filter housing on your engine. It is typically a black plastic container located on top of or on the side of the engine.
2. Open the Housing: Release the clips or remove the screws securing the housing cover.
3. Remove the Old Filter: Take out the old, dirty air filter element. Note its orientation.
4. Clean the Housing: Wipe the inside of the housing clean with a rag to remove any dust or debris.
5. Insert the New Filter: Place the new air filter into the housing, ensuring it is seated correctly and fits snugly.
6. Secure the Cover: Re-attach the housing cover and fasten the clips or screws. Ensure it is sealed tightly to prevent unfiltered air from entering the engine.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?
A: The best way to ensure a correct fit is to cross-reference the part number. This filter replaces Yanmar OEM part numbers 128270-12540 and 128377-12530. You can also check your engine model against the detailed compatibility list provided on this page.

Q: How often should I replace my engine's air filter?
A: Replacement intervals depend on your engine's operating environment. For most recreational boats, inspecting the filter annually and replacing it if it appears dirty, clogged, or damaged is a good practice. In dustier or harsher environments, more frequent checks may be necessary.

Q: What are the signs of a clogged or failing air filter?
A: Common symptoms include a noticeable loss of engine power, increased black smoke from the exhaust, and decreased fuel efficiency. A visual inspection will often show heavy dirt and debris buildup on the filter element.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.