4Pcs Engine Air Filter P621725 For Kenworth T680 T880 Peterbilt Turcks P63745

Engine Air Filter P621725 for Kenworth and Peterbilt Trucks

This engine air filter set replaces OEM cross-reference numbers P621725 and P63745, filtering dust and debris before air reaches the engine on heavy-duty trucks.

Overview

This engine air filter is a direct-fit replacement designed to keep intake air clean on Kenworth and Peterbilt trucks. The P621725 filter traps dust, dirt, and debris before they reach the engine, helping protect internal components and maintain airflow. Ideal for fleet operators and owner-operators who service their own rigs, this P621725 air filter is a practical maintenance item for scheduled service intervals.

Built For Performance

• Cross-references OEM part numbers P621725 and P63745 for straightforward replacement
• Pleated filter media provides high surface area for efficient contaminant capture
• Sealed end caps and gasket help prevent unfiltered air bypass
• Sturdy construction resists collapse under high intake vacuum
• Sold as a 4-piece set for multi-vehicle or multi-service stocking

Fits These Machines

• for Kenworth T680
• for Kenworth T880
• for Peterbilt trucks

On-The-Job Use

• Routine air filter service on Class 8 highway tractors
• Long-haul trucking where clean intake air protects engine life
• Fleet maintenance programs with scheduled filter replacement
• Regional and vocational trucks operating in dusty environments

Specs At A Glance

Good To Know

Q: How often should this filter be replaced? A: Most heavy-duty trucks follow a service interval based on mileage or dust exposure, so check your maintenance schedule and inspect the filter for loading. Q: Is this an original equipment filter? A: No, this is an aftermarket replacement that cross-references OEM part numbers P621725 and P63745.

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