Common Volvo engine air filter pre-filter.

Fits the following filters: BALDWIN: RS4642  CARQUEST: 83126  FLEETGUARD: AF26163M, AF26472M, AF62163M  FLEETRITE: AFR826163M  FRAM: CA9901  LUBER-FINER: LAF9201  MACK: 2191P606720  MANN & HUMMEL: C331630NHF  NAPA: 9126 - REPLACED BY: P605551  UPTME PARTS LLC: 20411815  VMC: AF606720  VOLVO: 20411815, 20882320, 85114057  WIX: 49126, 549126

Pre-filters are designed to enhance the efficiency of any performance or exposed air filter. The pre-filter is constructed with a proprietary polyester mesh with uniform micron openings, treated with a hydrophobic water-repellent process.

The mesh is UV resistant, filters debris down to .005", is shatter proof in freezing temperatures, and resistant to heat up to 450 degrees.

The material is puncture resistant and has elasticity characteristics allowing the threads to return to the original position in the event the threads have been impacted or shifted.

Pre-filters are designed to deflect the damaging debris, which clogs air filters, compromising peak air-flow and horsepower.