Fram CA4939 Engine Air Filter

Engine Air Filter Overview

The FRAM Extra Guard CA4939 engine air filter is built for axial flow air filter applications and engineered to meet OE fit and function requirements. It helps keep dust and pollen out of the engine while supporting cleaner airflow for everyday driving.

Compatible with a range of Toyota, Isuzu, and Honda applications, this round air filter is a direct replacement for vehicles that use the specified dimensions and axial flow design. The CA4939 is a practical choice for routine maintenance on older trucks and SUVs, including Toyota 4Runner, Toyota Pickup, and Isuzu Rodeo applications.

Key Features

• FRAM Extra Guard line for standard replacement service
• Blocks 2X more hazardous particles than average leading standard retail brands
• Engineered to meet OE fit and function requirements
• Round filter design with 7.875-inch inside diameter and 8.656-inch outside diameter
• Non-reusable, non-washable construction for replacement service

Detailed Description

The FRAM CA4939 is an engine air filter designed to replace a dirty or restricted filter in compatible axial flow air intake systems. Its round shape and listed dimensions help ensure proper seating in the air cleaner housing, while the Extra Guard media is intended to capture common airborne contaminants before they reach the engine. This filter is a fitment-based replacement for select Toyota 4Runner, Toyota Pickup, Toyota Supra, and Isuzu Rodeo applications, along with other listed vehicles.

FRAM Extra Guard filters are positioned as OE-style replacements for drivers who want a straightforward maintenance part with defined fit and function. The CA4939 part number is useful when cross-checking service records or ordering the correct filter for the same application. This part cross-references Monroe Shocks & Struts (e.g., 43-867-3, A1475C) for the same application.

What It Helps Address

• Restricted airflow from a dirty engine air filter
• Dust and pollen entering the intake system
• Reduced engine performance caused by clogged filter media
• Incorrect replacement selection for axial flow air filter applications
• Poor housing fit from mismatched filter dimensions

Installation Notes and Tips

Verify the air cleaner housing style and compare the listed dimensions before ordering. This filter is intended for vehicles that use the specified axial flow configuration, and fitment should be matched to the exact year, make, and model listed in the application data. Replace the filter during routine service when the existing element is dirty or restricted.

Quality Assurance

FRAM states that Extra Guard filters are engineered to meet OE fit and function requirements. The CA4939 is part of the Extra Guard product line, which is designed for standard replacement service in compatible applications.