The Donaldson P158666 Air Filter is engineered to serve as a crucial safety backup while your primary air filter is being serviced. It plays an essential role in preventing engine contamination by functioning both as a replacement and as a protective filter. When contaminants breach the primary filter, this air filter quickly plugs, alerting you to potential issues and helping to extend engine life.

Key Benefits

• Safety Backup Function: Ensures reliable protection during primary filter maintenance, keeping your engine continuously safeguarded.
• Rapid Plugging Feature: Responds swiftly to contaminants, giving you an early warning for necessary maintenance.
• Quality and Authenticity: A genuine Donaldson product delivered in its original packaging, ensuring top-notch quality.
• Maintenance Recommendation: Ideally used alongside regular maintenance; replace with every third primary filter change unless the primary filter fails sooner.

Additional Information

This dual-purpose air filter not only protects your engine but also enhances its longevity, keeping your truck or Jeep performing at its best. Built with precision, the Donaldson P158666 supports your vehicle’s upkeep with efficiency. Enjoy fast shipping—items typically ship within one business day, and there’s no minimum order requirement. For more premium air filters, explore our Air Filters collection or check out our dedicated Donaldson collection.