Sierra Air Filter 18-57703, Replaces Yanmar 128270-12540, Fits Yanmar 2GM & 3GM30

The Sierra 18-57703 is a replacement air filter engineered for Yanmar 2GM and 3GM30 marine diesel engines. Today's fuel injected and computer controlled marine engines require precise amounts of fuel, oil, and air to run at peak performance, and this filter is built to deliver clean, consistent airflow so the engine's fuel and computer control systems operate as designed.

Sierra designs and tests its outboard and diesel air filters specifically for the marine environment, and this filter is manufactured to meet or exceed OEM performance for the Yanmar 128270-12540 filter it replaces. It is backed by Sierra's limited lifetime warranty. Each filter measures 4 inches long by 4 inches wide by 4.25 inches high and weighs 0.17 pounds, matching the factory air filter it replaces so it installs into the original housing without modification.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-57703
• Product Dimensions: 4 inches long x 4 inches wide x 4.25 inches high
• Weight: 0.17 pounds
• Country of Origin: United States
• UPC: 808282342265
• Included Components: Air Filter (1 count)

Fitment

• Yanmar 2GM
• Yanmar 3GM30

Replaces (OEM)

• Yanmar 128270-12540

Frequently Asked Questions

What engines does the Sierra 18-57703 air filter fit? It fits Yanmar 2GM and 3GM30 marine diesel engines.

Is the 18-57703 a genuine Yanmar part or an aftermarket replacement? It is a Sierra aftermarket replacement filter engineered to meet or exceed the performance of the original Yanmar equipment, not a Yanmar-branded part.

What OEM part number does this filter replace? Sierra 18-57703 replaces Yanmar part number 128270-12540.

What are the dimensions of the 18-57703 air filter? It measures 4 inches long by 4 inches wide by 4.25 inches high.

How much does the 18-57703 air filter weigh? It weighs 0.17 pounds.

Where is the Sierra 18-57703 air filter manufactured? It is manufactured in the United States.

Does the 18-57703 air filter come with a warranty? Yes, Sierra backs the 18-57703 air filter with its limited lifetime warranty.

Why does a diesel engine like the Yanmar 2GM or 3GM30 need this air filter? Modern fuel injected and computer controlled marine diesel engines like the Yanmar 2GM and 3GM30 need precise, clean airflow to operate at peak performance, which is what the 18-57703 filter provides.

What is included when I order the 18-57703? One Sierra 18-57703 air filter is included per order.

Is this filter designed specifically for marine use? Yes, the 18-57703 is designed and tested by Sierra specifically for the marine environment.

Will the 18-57703 fit other Yanmar engine models besides the 2GM and 3GM30? Sierra lists fitment for the Yanmar 2GM and 3GM30 only for part number 18-57703.

How can I confirm I am ordering the correct filter? Match it by Sierra part number 18-57703, UPC 808282342265, or the OEM cross reference Yanmar 128270-12540.