K&N E-3988 Reusable Air Filter | K&N RK Series Assemblies
Brand: K&N
Price: $70.99 USD
Purchase details
Fitment: Check your exact vehicle and all application restrictions. View fitment details.
Availability: Ready to ship — In stock
Most in-stock orders ship within one business day of order placement. Delivery time is additional.
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Fitment
Choose your exact year, make, model, and trim to review this product’s applications.
Description
K&N E-3988 is a serviceable engine air-filter element made with oiled cotton media. Its application-specific shape and sealing surfaces must match the installed air-cleaner assembly.
Key features
Cotton media can be cleaned, dried and re-oiled for continued use.
Replacement filter element; a complete intake kit is not included.
Replacement air filter for specific RK Series air cleaner assemblies
Washable and reusable
High air flow filter media provides exceptional filtration
Fitment and selection
Replacement filter for specific K&N RK Series Harley-Davidson air-cleaner assemblies. Match the installed K&N assembly, not just the motorcycle model or outside dimensions.
Confirm year, engine, trim, market and the original filter or intake arrangement before ordering. Listed applications are a selection, not a complete vehicle-fitment database.
Specifications
Manufacturer part number: E-3988
Key features
- Cotton media can be cleaned, dried and re-oiled for continued use.
- Replacement filter element; a complete intake kit is not included.
- Replacement air filter for specific RK Series air cleaner assemblies
- Washable and reusable
- High air flow filter media provides exceptional filtration
Specifications
General
| Manufacturer part number | E-3988 |
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Construction
| Material | Cotton Gauze |
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Dimensions
| Dimensions | Height: 2.375 in (60 mm); Outside Diameter: 9.313 in (237 mm); Base Outside Length: 10 in (254 mm); Base Outside Width: 6 in (152 mm); Top Outside Length: 8 in (203 mm); Top Outside Width: 5 in (127 mm) |
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What's in the box
- 1 Air Filter
Install & Results
At a glance
- Inspect during routine maintenance. Use K&N cotton-filter cleaner, allow the element to dry completely, then apply the specified filter oil before reinstalling.
Warranty
Manufacturer warranty (documented)
K&N lists 1,000,000 Miles/10 Year coverage for part E-3988. Manufacturer terms and exclusions apply.
Term: 1,000,000 Miles/10 Year