K&N Round Air Filter E-3971

K&N Round Air Filter Fits Indian CHIEF, SCOUT, SPIRIT

The K&N Round Air Filter E-3971 is a high-performance replacement air filter designed specifically for Indian motorcycle models like the CHIEF, SCOUT, and SPIRIT. Ideal for off-road enthusiasts and riders who frequently navigate dusty terrains, this filter ensures optimal air flow and filtration for enhanced engine performance. K&N is a trusted brand known for its innovative air filtration solutions, providing riders with reliable products that can withstand challenging conditions.

Constructed to deliver clean carburetion even at high altitudes, the K&N Round Air Filter is washable and reusable, making it a cost-effective choice for long-term use. With its advanced filtration technology, this air filter is perfect for DIY mechanics and professional riders alike, ensuring your motorcycle runs smoothly and efficiently.

Key features

• High air-flow design for improved engine performance.
• Washable and reusable, reducing the need for frequent replacements.
• Excellent filtration to protect your engine from dirt and debris.
• Designed for off-road use, providing reliable performance in dusty conditions.
• No jet changes typically required, simplifying installation.
• Compatible with specific Indian motorcycle models for a perfect fit.

Technical details

• Product type: Round air filter
• Brand: K&N
• Part number: E-3971
• Compatibility: Indian CHIEF, SCOUT, SPIRIT (1999-2003)
• Reusable: Yes
• Washable: Yes

Applications / fitment

This air filter is commonly used in Indian motorcycles, particularly in off-road settings where dust and dirt are prevalent.

• INDIAN CHIEF 1436 (1999-2000)
• INDIAN SCOUT 1436 (2001-2003)
• INDIAN SPIRIT 1436 (2001-2003)

Why buy from Mick’s Gone Bush?

• Trusted Australian business focused on reliable power, auto-electrical, and service parts.
• Stock sourced from reputable distributors and brands.
• Practical support for trade, off-grid, and fleet customers.
• Clear shipping, warranty, and customer service.
• Expertise in off-road and automotive products for Australian conditions.

Frequently asked questions

How often should I clean my K&N air filter?

It is recommended to clean your K&N air filter every 50,000 kilometres, but this may vary based on your riding conditions.

Can I use this air filter on other motorcycle brands?

This specific air filter is designed for Indian motorcycles and may not fit other brands. Always check compatibility before purchasing.

Is installation difficult?

No, installation is straightforward, and no jet changes are typically required. However, refer to your motorcycle's manual for specific instructions.

How do I wash the K&N air filter?

To wash the filter, use K&N's cleaning kit, following the instructions provided. Ensure it is completely dry before reinstallation.

What is the warranty on K&N air filters?

K&N air filters typically come with a limited warranty against defects in material and workmanship. Check the product details for specific terms.