JTL Parts POWER FILTER Engine Air Filter LAF6663 for International ProStar WorkStar TranStar LoneStar | Replaces AF26103 3551814C1 P613336 RS4862 49088 CA10305

POWER FILTER - LAF6663 Engine Air Filter

Replacement for AF26103 / 3551814C1 – Heavy Duty Application

The POWER FILTER LAF6663 Engine Air Filter is designed for heavy-duty truck applications, delivering high-efficiency filtration to protect engines operating in demanding environments. Engineered with advanced filtration media, this filter ensures optimal airflow, improved combustion, and long-lasting engine performance.

Product Details

• Part Number: LAF6663
• Type: Engine Air Filter
• Brand: POWER FILTER
• Design: Radial Seal (Primary Filter)
• Cross Reference: AF26103, 3551814C1, P613336, RS4862, 49088, CA10305

Key Benefits

• High-efficiency filtration up to 99% of airborne contaminants
• Maintains optimal airflow for efficient combustion
• Improves fuel efficiency and engine performance
• High dirt-holding capacity for extended service life
• Designed for heavy-duty and fleet operations

Function

• Filters dust, dirt, and airborne particles before entering the engine
• Ensures a continuous flow of clean air
• Reduces engine wear and internal damage
• Supports reliable operation under high-load conditions

High-Quality Construction

• High-efficiency filtration media
• Radial seal design for secure and leak-free fit
• Reinforced structure for durability
• Engineered for long service life

Vehicle Fitment

Compatible with engines such as:

• Cummins ISX, ISX15, ISM
• Caterpillar C10, C11, C12, C13, C15
• Navistar MaxxForce 10, 11, 13, 15

Fits Models

• International ProStar (2004–2016)
• International WorkStar (7300, 7400, 7500, 7600)
• International TranStar 8600
• International LoneStar
• Caterpillar CT610 / CT630

Note: Fitment may vary depending on engine, year, and configuration. Always verify part number before purchase.

Replaces / Cross Reference Numbers

• LAF6663
• AF26103
• 3551814C1
• P613336
• RS4862
• 49088
• CA10305

Installation

• Direct replacement design
• No modifications required
• Quick and easy installation

Package Includes

• 1 x Engine Air Filter