K&N DU-9321 High-Flow Panel Air Filter for 2021-2025 Ducati Monster/DesertX

Vehicle Fitment

• 2021-2025 Ducati Monster 937 / Monster Plus / Monster 30 Anniversario
• 2023-2025 Ducati DesertX 937 / DesertX Rally
• 2023-2025 Ducati Scrambler Full Throttle, Scrambler Icon, Scrambler Nightshift
• 2024-2025 Ducati Hypermotard 698 Mono

Fitment Notes

• Direct-fit replacement - designed to drop into the OEM air-box of listed Ducati models
• Ensure stock air-box configuration (unmodified) before installation for proper sealing

Features

• Washable and reusable cotton-gauze media for long service life
• High-flow design engineered to increase airflow and support improved horsepower and torque
• Pleated multi-layer cotton gauze media for efficient dust and contaminant trapping while maintaining airflow
• Application-specific base seal and sealing bead for precise fitment and air-tight installation
• Pre-oiled and ready to install - no additional oiling required before first use
• Durable construction designed to withstand repeated cleanings and long-term use
• Enhanced engine protection while allowing freer airflow compared with stock disposable filters
• Backed by manufacturer's lifetime limited warranty, as long as proper maintenance is followed

Specifications

• Filter Shape: Panel
• Material: Cotton Gauze
• Outside Length: 7.875 in (200 mm)
• Outside Width: 3.938 in (100 mm)
• Height: 1.344 in (34 mm)
• Reusable / Washable: Yes
• Filter Re-oiling Amount (after cleaning): approx. 0.37 oz (11 ml)
• Weight: approx. 0.7 lb (0.3 kg)

Included Components

• 1 x K&N DU-9321 Air Filter

Product Description

The K&N DU-9321 is a high-flow replacement air filter engineered specifically to fit a range of modern Ducati motorcycles - including Monster, DesertX, Scrambler, and Hypermotard models - that use the factory air-box design. Its cotton-gauze, pleated media is crafted to improve airflow significantly over stock disposable filters, which can help boost throttle response, horsepower, and torque under load or spirited riding. Because the filter is washable and reusable, it offers long-term value and reduces waste by eliminating the need for frequent replacements.

Installation is straightforward: simply remove the original air filter and drop the DU-9321 into the factory air-box - no modifications are required when the air-box is stock and unmodified. Periodic cleaning and re-oiling per manufacturer guidance ensures the filter maintains optimal airflow and filtration efficiency over its usable life, making it a practical upgrade for Ducati riders seeking both performance improvement and consistent engine protection.