AF27994 Air Filter - High-Efficiency Primary Replacement for Heavy Mining  Construction Equipment

Product Overview & Heavy-Duty Performance

The AF27994 Heavy-Duty Primary Air Filter is engineered to deliver superior protection for high-horsepower engines operating under extreme, high-dust environments. Specially designed for heavy mining, earthmoving, and continuous construction operations, the AF27994 prevents microscopic dust, abrasive silicates, and airborne debris from reaching sensitive engine components.

Built with premium micro-glass blended synthetic media, this filter offers exceptional dirt-holding capacity and low initial airflow resistance. The media features specialized moisture-resistant treatment, preventing pleat collapsing and maintaining optimal air intake even in high-humidity or severe weather conditions. Supported by an outer heavy-gauge metal mesh and heavy-duty polyurethane end caps, the AF27994 maintains its structural stability under intense vacuum and thermal pressures. Its precision-engineered elastomer gasket forms an airtight, vibration-proof seal to ensure zero unfiltered air bypass, effectively extending engine lifespan and reducing unplanned maintenance costs.

Key Advantages

• ■High Efficiency Filtration: Advanced media captures micro-contaminants, preventing premature engine wear in harsh mining and construction environments.
• ■Heavy-Duty Construction: Built with an outer metal mesh support and rugged end caps to maintain structural integrity under high airflow pressure.
• ■Direct OEM Match: Manufactured to precise dimensions for a seamless fit, ensuring a reliable seal that prevents unfiltered air bypass.

Technical Specifications

The AF27994 is precision-manufactured according to exact OEM dimensional tolerances to guarantee a perfect drop-in replacement.

OEM Cross-Reference Guide

The AF27994 Air Filter serves as an exact dimensional and functional OEM direct replacement for Fleetguard AF27994, Caterpillar 2673005, Donaldson P608305, and Komatsu XA4291. It delivers equivalent or exceeding filtration efficiency compared to original parts, ensuring reliable protection across multi-brand fleets.

Equipment & Engine Applications

Designed for continuous heavy-duty service, the AF27994 primary air filter is widely used on large-scale mining dump trucks, petroleum rigs, and heavy haulers. It is directly compatible with Caterpillar 793F, 785D/G trucks, 3512E engines, as well as Komatsu 830E, 860E, 930E, and HD1500-7 mining haulers.

Caterpillar Applications

• ■Petroleum Engines: 3512 E
• ■Off-Highway Trucks: 785 D / 785 G
• ■Mining Dump Trucks: 793 F

Komatsu Applications

• ■Mining Trucks: 830 E / 830 E-15 / 830 E-17
• ■Electric Drive Trucks: 830 E AC / 830 E-AC
• ■Heavy Haul Trucks: 860 E / 930 E
• ■Dump Trucks: HD 1500-7

Frequently Asked Questions (FAQ)

How often should the AF27994 air filter be replaced in mining operations?

In severe mining and quarrying environments, replacement intervals depend primarily on restriction gauge readings rather than fixed operating hours. However, standard practice recommends inspecting the AF27994 every 250 hours and replacing it every 500 to 1,000 hours, or whenever differential pressure gauges indicate excessive intake resistance.

What are the main signs of a clogged AF27994 air filter?

Common indicators include engine power loss, increased black exhaust smoke, higher fuel consumption, reduced turbocharger efficiency, and a illuminated air intake restriction warning light on the operator dashboard.

Is the AF27994 washable or reusable?

It is strongly recommended to replace the AF27994 rather than washing or blowing it out with compressed air. Cleaning air filters can rupture microscopic media fibers and distort seals, allowing abrasive particles to pass directly into the engine cylinder.