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

4x Engine Air Filter for Kenworth and Peterbilt Trucks

This set of four engine air filters is a drop-in replacement designed to keep intake air clean on Kenworth T680, T880, and Peterbilt trucks, cross-referencing part numbers P621725 and P63745.

Overview

This 4-pack of engine air filters is built to replace worn filters on Kenworth T680, T880, and Peterbilt trucks. The engine air filter set cross-references P621725 and P63745 for straightforward matching to your current filter. It suits fleet operators and owner-operators who service multiple trucks and want a fresh engine air filter on hand for routine maintenance.

Built For Performance

• Filters dust, dirt, and debris before air reaches the engine intake
• Cross-references P621725 and P63745 for easier part matching
• Four filters per set for multi-truck or staged maintenance
• Pleated media design for strong dirt-holding capacity
• Drop-in fitment for compatible factory air filter housings

Fits These Machines

• for Kenworth T680 trucks
• for Kenworth T880 trucks
• for Peterbilt trucks using P621725 or P63745 filters

On-The-Job Use

• Scheduled maintenance on fleet trucks
• Replacing clogged or dust-loaded air filters on highway trucks
• Keeping spare filters on hand for over-the-road service
• Shop and yard maintenance programs for multiple units

Specs At A Glance

Good To Know

Q: How often should I replace these engine air filters? A: Replacement intervals depend on operating conditions, but many fleets inspect filters at every service and replace them once they load up with dust or debris.

Q: Is this a set of four filters? A: Yes, this listing includes four engine air filters, matching the P621725 and P63745 references for compatible Kenworth and Peterbilt applications.

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