K&N HD-9608 Reusable Motorcycle Air Filter

1 / 7

Product guide

K&N HD-9608 Reusable Motorcycle Air Filter

Motorcycle: K&N HD-9608 is a washable, reusable engine air filter listed for select Harley-Davidson Twin Cam Dyna models. Its pre-oiled cotton-gauze construction is designed to trap contaminants, while K&N claims increased airflow may improve throttle response and acceleration.

At a glance

Designed for select Harley-Davidson Twin Cam Dyna applications spanning 2008–2016, with model-specific fitment details in the listing.
Washable, reusable, pre-oiled cotton-gauze construction is intended to support repeated use and longer maintenance intervals.
K&N claims high airflow can help improve horsepower, acceleration and engine response, usually without fuel-management modifications.
Custom seals and application-specific sealing beads are described as providing an OEM-style fit where applicable.

Price

$67.19Save 20%

Reference price: ~~$83.99~~

Price checked: Nov 14, 2026

View offer

Often bought together

NGK Iridium IX DCPR7EIX Spark Plugs Compatible with 1999-2016 Harley Davidson Twin Cam (Pair)

$20.78

K&N Motorcycle Oil Filter: High Performance, Wrench Off Nut, KN-171B | Fits Select 1999-2024 HARLEY DAVIDSON: FLFBS Fat Boy 114/Sport Glide/Road King Special/Street Glide (See Product Description)

$14.39

Pros and cons

Pros

Reusable construction can reduce the need to replace a disposable filter as often, provided it is maintained according to the manufacturer's instructions.
The listing gives physical dimensions and a vehicle-specific fit designation to help confirm the application before purchase.
Customer feedback reports easier installation and improved throttle response, although those reports do not establish a measured performance gain.

Cons

Reusable filters require cleaning and re-oiling maintenance, unlike a filter that is simply replaced.

Technical specifications

10 specifications

Identity
Brand	K&N
Model	HD-9608

Dimensions and installation
Form factor	Rectangular
Dimensions listed	7.06"L x 4.75"W x 1.63"H
Weight listed	0.3 kg
Fit type	Vehicle Specific Fit
Listed fit range	HARLEY DAVIDSON TWIN CAM DYNA MODELS; 2008-2016

Filter and maintenance
Product grade	Performance Part
Filter material and treatment	premium oiled cotton gauze
Washable and reusable	K&N pre-oiled washable filters offer a longer service life, helping reduce replacement costs while supporting extended maintenance intervals.

What to know before buying

Listing details to confirm

Confirm the exact motorcycle year and model against the full fitment description before ordering. The listing's shorthand covers 2008–2016, while its detailed compatibility list names individual models and has some year-specific exceptions.

What’s in the box

Included

HARLEY DAVIDSON TWIN CAM DYNA MODELS, 2008-2016

Who is it for?

A good fit for

Harley-Davidson owners whose specific Twin Cam Dyna model and year match the listed HD-9608 applications.
Riders who prefer a washable, reusable filter and are willing to carry out its ongoing maintenance.
Buyers seeking a replacement filter with product dimensions and a stated vehicle-specific fit.

Less suited to

Owners of motorcycles outside the listed applications or anyone unable to verify an exact fit.
Buyers who prefer a disposable filter that does not require cleaning and re-oiling.

K&N HD-9608 Reusable Motorcycle Air Filter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 277 ratings

5 stars78%78%
4 stars13%13%
3 stars5%5%
2 stars0%0%
1 star4%4%

Customer feedback describes noticeable throttle-response and acceleration improvements, a small perceived power boost, good fit and easy installation. These are customer-reported impressions, not measured results. They are most relevant to riders considering the filter for a matching application, while the reusable cotton-gauze construction and maintenance requirements remain product claims rather than evidence of performance.

Positive themes

Customer feedback reports perceived improvements in throttle response, acceleration and power.
Feedback also describes a good fit and easy installation.

Frequently asked questions

Which motorcycles is the K&N HD-9608 listed for?

The listing identifies select 2008–2016 Harley-Davidson Twin Cam Dyna models. Check the detailed compatibility list for the exact year and model, since the broad year range does not apply to every model in the same way.

Can this filter be washed and reused?

Yes. K&N describes it as a pre-oiled washable and reusable filter. Reuse entails cleaning and maintaining the filter rather than replacing it each time.

Does the filter guarantee more horsepower or acceleration?

No performance gain is guaranteed. K&N says its airflow design can help improve horsepower, acceleration and engine response, and customer feedback reports perceived throttle-response and acceleration improvements.

What are the listed dimensions?

The listed dimensions are 7.06"L x 4.75"W x 1.63"H. Compare them and the vehicle-specific fit details with your existing application before buying.