AF27773 Primary  Air Filter

Product Highlights

• High Efficiency Filtration: 99.9% particulate capture efficiency tested under rigorous ISO 5011 laboratory standards.
• PowerPleat™ Design: Advanced pleat spacing maximizes dust-holding capacity and optimizes engine intake airflow.
• Direct OEM Fitment: Precise dimensions (ID: 144.7 mm, Length: 526.9 mm) ensure a perfect seal in original air cleaner housings.
• B2B Supply Chain Support: Reliable factory-direct manufacturing for distributor fleets, supporting private labeling and global bulk logistics.

Detailed Product Overview

Airborne dust and particulate contamination are primary causes of early engine wear and performance degradation in heavy excavation and forestry applications. The AF27773 primary air filter provides high-capacity air intake protection designed for heavy machinery operating in dust-intensive environments.

How It Works

As an intake air filter, the AF27773 draws ambient air through its specialized cellulose filtration media prior to combustion. The high-density media traps airborne abrasive contaminants-such as silica, dirt, and debris-allowing clean air to flow into the engine cylinders. This maintains steady airflow rates while preventing internal component friction and wear.

Engineering & OEM Performance Comparison

Built with PowerPleat™ technology and premium cellulose media, the AF27773 delivers structural stability and minimal initial pressure drop. Compared to standard original equipment manufacturer (OEM) filters, this replacement element provides equivalent dust-holding capability and airflow efficiency at a competitive price point for equipment operators and replacement parts distributors.

Product Advantages

• 99.9% Dust Retention: High-efficiency cellulose media catches abrasive particulates before they reach the engine.
• Low Airflow Resistance: Optimized pleat geometry delivers steady airflow, maintaining fuel efficiency and engine horsepower.
• Heavy-Duty Construction: Built to withstand severe vibration and high intake suction without pleat collapse.
• Engine Life Extension: Safeguards critical engine internal parts against abrasive wear to minimize maintenance downtime.

Technical Specifications

OE Cross-Reference Numbers

Compatible Equipment Applications

• CATERPILLAR: 336D2, 336D2 GC, 336D2 L, 336D2 L XE, 336D2 XE, 336E, 336E H, 336E L, 336E LH, 336E LNH, 336F, 336F L, 336F L XE, 336F LN, 336F LNXE, 336F XE, 340D2 L, 340F, 340F L LRE, 548, 558, 568 FM, 568 FM LL
• PERKINS: 1506-E88TAG2, 1506-E88TAG3, 1506-E88TAG4, 1506-E88TAG5
• XUZHOU CONST. MACHINERY GROUP (XCMG): XE305D

Primary Application Sectors

• • Heavy Construction & Earthmoving Operations
• • Forestry & Logging Equipment
• • Industrial Power Generation
• • Mining & Site Preparation
• • Commercial Fleet Maintenance