4x Engine Air Filter For Kenworth T680 T880 & Peterbilt 567 579 Truck P621725

Engine Air Filter for Kenworth T680 T880 & Peterbilt 567 579

This engine air filter, referenced as P621725, is a direct-fit replacement designed to capture dust, debris, and airborne contaminants before they enter the engine intake on your truck.

Overview

This engine air filter keeps intake air clean so your diesel engine breathes properly and maintains power under load. It is built as a replacement for the P621725 air filter used on several heavy-duty truck platforms. Fleet operators and owner-operators alike rely on a quality engine air filter to protect the engine between service intervals.

Built For Performance

• Cross-references the P621725 filter number for straightforward replacement
• Pleated filtration media traps dust, soot, and road debris before the intake
• Sealed end caps help prevent unfiltered air from bypassing the element
• Sturdy construction holds up to vibration and continuous highway duty
• Sold in a set of four for convenient multi-service stocking

Fits These Machines

• for Kenworth T680
• for Kenworth T880
• for Peterbilt 567
• for Peterbilt 579

On-The-Job Use

• Long-haul highway trucking where intake air quality affects fuel economy
• Regional delivery routes with frequent exposure to dust and road grit
• Construction and vocational fleets running in dusty work environments
• Routine maintenance schedules that call for periodic filter changes

Specs At A Glance

Good To Know

Q: How often should an engine air filter be replaced? A: Most heavy-duty trucks call for a filter change at set mileage or when the restriction indicator shows, whichever comes first. Dusty conditions often require more frequent replacement.

Q: Will this filter fit my specific truck year? A: Fitment can vary by engine configuration and production year, so matching the P621725 reference and your application is the safest check. Confirm against your truck before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.