Harddrive Performance Air Filter - Repl OEM 29044-04b/29400026

Harddrive performance air filter for V-twin motorcycles, featuring pleated cotton media that flows more air than paper OEM filters while maintaining filtration. Washable and reusable with a black appearance suited for exposed filter applications.

Features

• Pleated cotton media for increased airflow
• Washable and reusable element
• Black media for exposed applications
• Pre-oiled and ready to install
• Long service intervals
• Fits OEM air filter assemblies

Specifications

• Brand: Harddrive
• Manufacturer Part #: TJ-A-138
• UPC: 191361469619
• Dimensions: 8 in L × 4 in W × 4 in H
• Weight: 2 lbs
• Country of Origin: China (Mainland)

Fitment

Fits V-twin motorcycles with OEM air filter assemblies compatible with Harley-Davidson and Indian Motorcycle platforms.

Frequently Asked Questions

How often do I need to clean this filter?

Check it every oil change. Clean and re-oil when visibly dirty — typically every 30,000–50,000 miles depending on riding conditions.

Does it come pre-oiled?

Yes — the filter arrives pre-oiled and ready to install straight out of the box.

Will this increase my horsepower?

Increased airflow can improve breathing slightly compared to a restricted OEM paper filter, but gains depend on other engine modifications and tuning.

Can I use this filter without a rejet or tune?

As a drop-in replacement in the stock airbox, retuning is typically not required, though some riders add a fuel controller for optimal performance.

How long does it last before replacement?

Because it is washable and reusable, it can last the life of your motorcycle with periodic cleaning and re-oiling.