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SKU: 99-0638 | UPC: 024844277756
K&N 99-0638 Heavy Duty Filter Cleaner DryFlow 1 Gallon
K&N 99-0638 delivers 1 gallon of heavy duty air filter cleaner designed exclusively for K&N commercial grade DryFlow filters on class 6-8 over-the-road trucks agricultural equipment earth moving machines and diesel motor homes. This formula dissolves stubborn dirt grime and old filter oil to restore filters to like-new condition. Rinse easily with a hose or pressure washer for extended filter life and peak engine airflow.
Key Features
- 1 Gallon Capacity: Large volume handles multiple heavy duty filter cleanings with enough cleaner for thorough coverage
- Dirt Dissolving Action: Breaks down heavy buildup and trapped debris in hybrid filter media for complete removal
- Oil Removal: Strips away old filter oil residue ensuring fresh recharge application
- High Performance Degreaser: Tackles grease and contaminants common in diesel truck and off-road environments
- Water Rinse Formula: Cleans fully with plain water no residue left behind for immediate reuse
Product Notes
- Use only on K&N heavy duty DryFlow air filters avoid standard oiled filters
- Store in cool dry place shake well before use
- Hazardous material ships ground only no air express
Installation Notes
- Professional installation recommended.
- Spray liberally on filter let soak 10 minutes agitate with brush then rinse
- Compatible with all K&N heavy duty filter part numbers dry completely before reoiling
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| All | Class 6-8 Trucks | Over-the-Road | Turbo Diesel |
| All | Agricultural | Tractors | Earth Moving |
| All | Construction | Equipment | - |
| All | Motor Homes | Diesel | - |
Why Choose K&N?
- Over 60 years engineering air filters for diesel trucks and heavy equipment
- Restores airflow to factory levels extending filter service intervals
- Backed by K&N one million mile limited warranty on compatible filters
Frequently Asked Questions
-
Q: Which K&N filters does 99-0638 clean?
A: Formulated for all K&N heavy duty DryFlow air filters including those on Freightliner Cascadia Kenworth T680 Peterbilt 389 International trucks and ag machinery -
Q: Is this cleaner safe for my filter media?
A: Yes specially made for K&N hybrid synthetic media will not damage cotton gauze or wire mesh components -
Q: How often should I clean my HD filter?
A: Clean every 50000 miles or when restriction gauge hits 20 inches water based on operating conditions
Shipping &. Handling
- Method: Ground shipping only due to liquid contents
- Availability: In stock - ships same or next business day
- Packaging: 11 x 6 x 6 inches sturdy jug in carton
- Weight: 9.68 lbs
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