Wix WA11398 Engine Air Filter

Engine Air Filter for Land Rover Applications

The Wix WA11398 engine air filter is built for Land Rover Defender and Discovery applications that see daily road use, stop-and-go traffic, and harsher driving conditions. It uses enhanced cellulose media and a polyurethane seal to help maintain clean airflow and dependable engine protection.

Compatible with select 2020-2026 Land Rover Defender 110, 2021-2026 Land Rover Defender 90, 2023-2026 Land Rover Defender 130, 2025-2026 Land Rover Discovery, and 2025-2026 Land Rover Range Rover models, the WA11398 is a direct-fit panel air filter for routine service intervals.

Key Features

• Engine air filter for Land Rover Defender 110, Defender 90, Defender 130, Discovery, and Range Rover applications
• Enhanced cellulose media with phenolic resin treatment for added moisture resistance
• 30% more media than OES filters, based on Wix design comparison
• High-tear strength polyurethane seal for hot and cold temperature durability where applicable
• Laboratory tested to ISO 5011 standards with at least 99.5% efficiency, based on Wix 42389
• Panel-style construction for factory airbox service
• Wix WA11398 replacement air filter for OEM-style maintenance

Detailed Description

The Wix WA11398 is a premium panel air filter engineered for normal and severe driving environments, including dirt roads, construction zones, short trips, interstate travel, and frequent stop-and-go operation. Its cellulose media is treated to improve durability against moisture ingestion, while the panel design supports straightforward replacement during scheduled maintenance. This part cross-references Land Rover OE-style numbers such as LR129322 and SA50139 for the same application.

For owners searching for a 2020-2026 Land Rover Defender 110 air filter, a 2021-2026 Land Rover Defender 90 engine air filter, or a 2025-2026 Land Rover Discovery air filter, the WA11398 provides a direct service replacement that matches the factory airbox format. The Wix WA11398 also serves select 2025-2026 Range Rover applications.

What It Helps Address

• Restricted airflow caused by a dirty or loaded engine air filter
• Dust and debris entering the intake system during road and off-road use
• Moisture-related media breakdown in demanding weather conditions
• Reduced filtration performance during short-trip and stop-and-go driving
• Routine maintenance needs for Land Rover Defender and Discovery service intervals

Installation Notes and Tips

Replace the filter at the manufacturer-recommended service interval or sooner if driving conditions are severe. Inspect the airbox sealing surfaces before installation and make sure the filter seats evenly in the housing. Confirm the vehicle application by year, model, and engine airbox configuration before ordering the Wix WA11398.

Quality Assurance

Wix designs this filter for OEM air filter change intervals and validates filtration performance through laboratory testing to ISO 5011 standards. The WA11398 is built with durable media and sealing materials to support consistent service life in demanding driving conditions.