# K&N 1 Gallon Heavy Duty DRYFLOW Cleaner

K&N 99-0638 is a 1 US gallon container of K&N Heavy Duty Air Filter Cleaner. It is the only cleaner recommended for cleaning heavy duty commercial grade air filters. This cleaner can be used to clean K&N heavy duty air filters for large turbo diesel engines, class 6-8 over-the-road trucks, agricultural and earth moving equipment, and diesel motor homes. The 99-0638 air filter cleaner will bring your K&N heavy duty air filter to like new condition. It works to dissolve dirt and grime caught by the hybrid filter material and, then it can be rinsed out with a hose or pressure washer.

-   Washes Away With Water

## Details

- **Price:** 80.53 CAD
- **Vendor:** K&N Engineering
- **Type:** Recharge Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 80.53 CAD | In stock |

## Images

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/k-n-1-gallon-heavy-duty-dryflow-cleaner)
> Updated: 2026-08-25