The Injen Hydroshield Black Air Filter Pre-Filter (1119BLK) is a protective air filter wrap designed to help shield compatible aftermarket performance air filters from water, dust, dirt, and road debris. Engineered for vehicles equipped with exposed cold air intake or short ram intake filters, the Hydroshield provides an additional layer of protection while maintaining the airflow needed for efficient engine operation.

Manufactured using a specially developed water-repellent synthetic material, the Injen Hydroshield helps prevent moisture droplets and larger airborne contaminants from directly contacting the primary air filter. Its hydrophobic construction allows intake air to pass through while reducing exposure to contaminants that can accumulate on the filter media.

Unlike conventional engine air filters, the Hydroshield is designed to work alongside an existing air filter rather than replace it. This supplemental protection can help reduce contamination buildup and support longer filter service intervals, depending on driving conditions and maintenance practices.

The flexible slip-on design allows installation over appropriately sized performance air filters without requiring modifications to the intake system. Its black finish provides a clean, understated appearance that complements a wide variety of aftermarket intake configurations.

Whether protecting an exposed cold air intake on a daily-driven Honda Civic, maintaining a K-Series engine swap, or adding protection to a turbocharged performance vehicle, the Injen Hydroshield 1119BLK provides a practical solution for keeping your intake filter cleaner during everyday operation.

Features

• Water-Repellent Hydroshield Material: Hydrophobic construction helps repel moisture before it reaches the primary air filter.

• Supplemental Filter Protection: Provides an additional barrier against dust, dirt, road debris, and airborne contaminants.

• Airflow-Friendly Construction: Engineered to maintain intake airflow while providing protective coverage.

• Black Finish: Delivers a clean appearance that complements aftermarket performance intake systems.

• Flexible Slip-On Design: Installs over compatible air filters without requiring permanent modifications.

• Performance Intake Compatibility: Suitable for appropriately sized filters used with cold air and short ram intake systems.

• Helps Reduce Filter Contamination: Limits direct exposure of the primary filter media to larger debris.

• Moisture Protection: Particularly useful for intake filters positioned in exposed areas.

• Lightweight Construction: Adds minimal weight to the intake assembly.

• Easy Installation and Removal: Can be removed for inspection and maintenance.

• Universal Fitment by Dimensions: Compatible with properly sized aftermarket air filters regardless of vehicle make or model.

• OEM and Aftermarket Applications: Suitable for custom intake configurations using a compatible filter.

• Injen Performance Engineering: Designed to complement Injen's performance air intake systems.

Popular Performance Applications

• Honda and Acura Cold Air Intakes: Provides additional protection for compatible exposed aftermarket air filters.

• K-Series Engine Swaps: Suitable for appropriately sized filters installed on custom K20 and K24 intake configurations.

• B-Series Performance Builds: Helps protect compatible intake filters on modified B16, B18, and B20 engines.

• Turbocharged Applications: Adds supplemental protection to exposed air filters used with aftermarket turbocharger intake piping.

• Short Ram Intake Systems: Helps reduce direct exposure to dust and road debris in engine bay intake configurations.

• Daily-Driven Performance Vehicles: Provides an additional protective layer during regular street driving.

• Wet Weather Driving: Helps repel moisture encountered during rain and damp road conditions.

• Custom Intake Fabrication: Can be used with universal intake systems equipped with a correctly sized air filter.

• Performance Air Filter Maintenance: Helps reduce the amount of larger debris reaching the primary filter media.

Additional Information

• Manufacturer: Injen Technology
• Part Number: 1119BLK
• Product Series: Hydroshield
• Product Type: Air Filter Pre-Filter / Protective Wrap
• Color: Black
• Material: Water-Repellent Synthetic Fabric
• Installation Type: Slip-On
• Vehicle Fitment: Universal, Based on Air Filter Dimensions
• Primary Air Filter Included: No

Fitment Information:

The Injen Hydroshield 1119BLK is a universal protective filter accessory. Compatibility depends on the dimensions and shape of the existing air filter rather than the vehicle's make, model, or engine.

Verify the filter's base diameter, top diameter, overall height, and top configuration against Injen's fitment specifications before ordering.

Important: The Hydroshield is water-repellent, not waterproof. It does not eliminate the risk of water entering the engine through an exposed intake system and should not be considered protection against engine hydrolock when driving through deep standing water.

Common Reasons for Replacement

• Water Exposure Concerns: Helps reduce direct moisture contact with exposed performance air filters.

• Dusty Driving Conditions: Provides an additional barrier against airborne dirt and dust.

• Road Debris Protection: Helps shield the primary filter from larger contaminants.

• Cold Air Intake Protection: Adds supplemental protection to intake filters mounted in exposed locations.

• Filter Maintenance: May help reduce debris buildup on the primary filter media.

• Daily Driver Protection: Provides added intake filter coverage during routine driving.

• Performance Intake Upgrades: Complements compatible aftermarket intake systems.

• Damaged Existing Pre-Filter: Replaces worn, torn, or deteriorated protective filter wraps.

• Custom Intake Installations: Provides a universal protective accessory for properly sized aftermarket filters.

Installation Notes

1. Verify Filter Compatibility: Confirm that the existing air filter matches the dimensions and configuration specified for Injen part number 1119BLK.

2. Allow the Engine to Cool: Ensure the engine and surrounding intake components have cooled before installation.

3. Locate the Air Filter: Identify the exposed aftermarket air filter installed on the intake system.

4. Inspect the Primary Filter: Check for excessive dirt, damage, or other conditions requiring service.

5. Clean the Primary Filter if Necessary: Follow the filter manufacturer's maintenance instructions before installing the Hydroshield.

6. Position the Hydroshield: Carefully slide the protective wrap over the existing air filter.

7. Ensure Proper Coverage: Verify that the Hydroshield covers the intended filter surface without leaving large gaps.

8. Check the Fit: Make sure the wrap fits securely without excessive stretching, bunching, or interference.

9. Inspect Surrounding Clearance: Confirm that the Hydroshield does not contact moving components, hot exhaust surfaces, or sharp edges.

10. Verify Filter Security: Ensure the primary air filter remains securely attached to the intake piping.

11. Inspect Periodically: Check the Hydroshield for accumulated dirt, damage, or deterioration during routine maintenance.

12. Service as Necessary: Clean or replace the Hydroshield according to Injen's recommendations.

Important: The Injen Hydroshield is designed to supplement an existing air filter, not replace it. Never operate the engine with only the Hydroshield installed.

What's Included

• (1) Injen Hydroshield Black Air Filter Pre-Filter (1119BLK)

Note: The primary engine air filter, intake piping, clamps, and other intake system components are sold separately.

Closing Product Summary

Protect your aftermarket performance intake system with the Injen Hydroshield Black Air Filter Pre-Filter (1119BLK). Featuring water-repellent synthetic construction, airflow-friendly design, and convenient slip-on installation, this protective wrap helps shield compatible performance air filters from moisture, dust, dirt, and road debris.

Whether you're maintaining a daily-driven Honda or Acura, protecting an exposed cold air intake, or building a custom turbocharged intake system, the Injen Hydroshield delivers a simple, practical solution for supplemental air filter protection and long-term intake maintenance.