Impco Model CA300AM-4 Mixer

The CA300AM-4 is a high-capacity air-gas mixer / carburetor designed for LPG vapor or natural gas applications. It’s built for demanding engine loads, offering large airflow, flexible mounting, and optional configurations for feedback control or larger air input arrangements. Great for under-hood vehicle conversions or any setup needing strong performance.

Key Features

• Single-diaphragm air-valve mixer design, down-draft air inlet

• Supports remote air filtration or open-element style air filters

• Available in non-feedback or feedback (“FB”) versions

• Optional cam mechanism to allow air valve full-open position, reducing restriction in high-flow applications

• Air cleaner assemblies available to match higher airflow demands

• Diaphragm material is standard Hydrin; optional upgrade to Silicone for high heat or more aggressive environments

Specifications

Applications

• High-output engine conversions using propane or natural gas vapor

• Vehicle or industrial engine installations requiring strong airflow and adjustable mixture control

• Environments with wide temperature ranges or needing durable diaphragm materials

• Situations where full opening of the air valve is needed for minimal restriction under load

Why Choose IMPCO CA300AM-4

This mixer delivers robust performance with flexible options: high flow for higher horsepower, durable materials, and adaptability. Whether you need feedback control, upgraded airflow, or a reliable non-feedback setup, it handles the demands of demanding gas-engine applications with strength and reliability.