P623400 Air Filter for Navistar International 2008 2020 AF4222 2517298C1

Product Overview

The P623400 air filter provides high-efficiency filtration for Navistar International diesel engines. Designed to trap harmful contaminants while maintaining optimal airflow, this filter helps protect engine internals and sustain fuel efficiency. Ideal for fleet operators and owner-operators of International trucks built between 2008 and 2020, the P623400 air filter offers a direct fit replacement for factory and aftermarket part numbers.

Key Features & Performance

• Advanced cellulose and synthetic blend media captures dust, soot, and debris down to micron levels
• Pleated design maximizes dirt-holding capacity and extends service intervals
• Rigid polyurethane sealing gasket ensures no bypass of unfiltered air
• Corrosion-resistant metal mesh backing provides structural integrity under high-vibration conditions
• Pre-lubricated seal for quick, tool-free installation
• Engineered to meet or exceed OEM filtration efficiency and airflow specifications

Fitment & Compatibility

• 2008-2020 Navistar International 4300, 4400, 7300, 7400 series
• 2008-2020 Navistar International WorkStar, DuraStar, and TranStar models
• 2008-2020 Navistar International ProStar models (select engine configurations)
• Cross-references with Baldwin AF4222, Case/New Holland 2517298C1, and other equivalent part numbers

Common Uses

• Routine air filter replacement during preventive maintenance of medium- and heavy-duty International trucks
• Over-the-road long-haul operations where consistent engine protection is critical
• Agricultural and construction applications using International-powered equipment
• Fleet maintenance programs requiring high-quality, reliable filtration

Technical Specifications

• Part Number(s): P623400, AF4222, 2517298C1
• Type: Engine air filter
• Media Type: Cellulose/synthetic blend
• Compatibility: 2008-2020 Navistar International heavy-duty trucks

Frequently Asked Questions

Q: How often should this air filter be replaced? A: Replacement intervals vary by operating environment, but typically every 15,000 to 30,000 miles or as indicated by the vehicle’s restriction gauge.

Q: Does this filter fit both LHD and RHD International models? A: Yes, the air filter housing is identical across left-hand drive and right-hand drive configurations for the listed model years.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.