Harddrive Performance Air Filter - Replaces OEM 29385-08 for Harley & Indian V-Twin
About Harddrive
Harddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.
The Harddrive performance air filter is designed for V-twin motorcycles, featuring pleated cotton media and a pre-oiled construction for increased airflow. Its washable and reusable design extends service life, offering a cost-effective alternative to disposable filters. This filter is ready to install, providing an immediate performance boost for your engine.
Why riders pick this
- Replaces OEM part 29385-08 directly
- Pleated cotton media for increased airflow
- Washable and reusable design
- Ships pre-oiled for quick installation
- Black media finish for exposed applications
Maximizing the efficiency of your V-twin starts with optimal engine breathing. This Harddrive performance air filter delivers a significant upgrade over standard filters by providing increased airflow, which can translate to better throttle response and overall engine performance. Beyond performance, its durable, washable, and reusable construction means you'll save money in the long run, making it a smart investment for any rider.
Enhanced Airflow for Your V-Twin
- Pleated cotton media for superior filtration and maximum airflow
- Black media finish for a clean, aggressive look in exposed applications
- Washable and reusable construction extends product lifespan
- Ships pre-oiled and ready for immediate, hassle-free installation
- Engineered for extended service intervals between cleanings
A Smart Upgrade for Longevity and Performance
Designed as a direct replacement for OEM part 29385-08, this Harddrive air filter fits seamlessly into your stock air filter assembly on many Harley-Davidson and Indian Motorcycle models. It's a straightforward, impactful upgrade that improves both performance and maintenance efficiency. Pair it with a complementary exhaust system and a dyno tune to fully harness the power gains this filter can help unlock.
Specifications
- Brand: Harddrive
- Manufacturer Part #: TJ-A-140
- UPC: 191361469596
- Dimensions: 8 in L x 4 in W x 4 in H
- Weight: 2 lbs
- Country of Origin: China (Mainland)
Common questions
Is this Harddrive air filter pre-oiled and ready to use out of the box?
Yes, this performance air filter comes pre-oiled and is ready to install directly into your stock air filter assembly without any additional preparation.
Can I clean and reuse this air filter, or is it a disposable item?
Absolutely. This filter features washable pleated cotton media, designed to be serviced and re-oiled multiple times. This approach saves you money over continually purchasing disposable filters.
Will this filter fit my Harley-Davidson or Indian Motorcycle?
This Harddrive air filter is designed to replace OEM part 29385-08 and fits various Harley-Davidson and Indian Motorcycle models with compatible OEM air filter assemblies. We recommend confirming your stock part number for precise fitment.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Harddrive |
| TYPE | Air Filters |
| SKU | 820-50673 |
| WEIGHT | 2.0 lb |
