The K&N 60-1263 Custom Air Cleaner Assembly is engineered for high-performance applications requiring a traditional round filter configuration. This universal assembly features a 14-inch outer diameter and is designed to fit carburetors or throttle bodies with a standard 5.125-inch mounting flange. By replacing restrictive factory housings with K&N’s high-flow cotton gauze media, this setup delivers increased air volume to the engine while maintaining superior filtration efficiency.

Built with durability and maintenance in mind, the 60-1263 includes a washable and reusable filter element that eliminates the waste of disposable paper filters. Each complete assembly is ready for installation with all necessary primary components included.

• Manufacturer Part Number: 60-1263
• Design: Round Custom Air Cleaner
• Outside Diameter: 14 in (356 mm)
• Inside Diameter (Bore): 5.125 in (130 mm)
• Total Height: 3.87 in (98 mm)
• Filter Media: Red washable cotton gauze
• Included Components: Filter element, base plate, and top plate

The K&N 60-1180 Custom Round Air Cleaner Assembly is engineered for performance-driven builds and racing applications requiring high-volume airflow. This complete kit replaces restrictive factory housings with a high-flow setup that utilizes K&N's signature washable and reusable cotton gauze media.

Designed to fit carburetors and throttle bodies with a standard 5-1/8 inch flange, this 11-inch diameter assembly provides the substantial surface area needed to support high-horsepower engines. The integrated vent allows for necessary crankcase ventilation or accessory routing directly into the air stream, ensuring a clean and functional installation.

• Complete Assembly: Includes a high-flow air filter element, top plate, and mounting base.
• Optimized Airflow: Engineered to provide significantly more air volume than standard paper element housings.
• Washable & Reusable: Features a K&N oiled cotton gauze filter for long-term durability and easy servicing.
• Technical Specifications: 11-inch diameter, 4-3/4 inch total height, with a 5-1/8 inch neck/flange size.
• Manufacturer Part Number: 60-1180

The K&N 60-1170 Custom Air Cleaner Assembly is engineered to provide superior airflow for engines using a round element air cleaner housing. This complete kit replaces restrictive factory setups with a high-flow K&N filter designed to increase performance while maintaining exceptional filtration efficiency. Each assembly is built with durable components to withstand the demands of performance and racing applications.

• Includes a washable and reusable K&N high-flow air filter
• Complete assembly includes base, filter element, and top plate
• Integrated vent for specific crankcase ventilation requirements
• Designed for universal fitment on 5 1/8-inch carburetor or throttle body flanges

Technical Specifications:

• Manufacturer Part Number: 60-1170
• Outside Diameter: 11 in (279 mm)
• Height: 3.25 in (83 mm)
• Flange Size: 5.125 in (130 mm)
• Filter Material: Cotton Gauze
• Top Material/Finish: Chrome

The K&N 56-9327 Custom Racing Air Filter Assembly is engineered to maximize airflow for single or two-barrel carburetors while maintaining superior engine protection. This assembly features a round tapered design with a high-flow, washable red cotton gauze filter media, allowing for increased performance and long-term reusability.

Built for durability and a professional finish, the kit includes custom chrome-plated top and base plates that resist corrosion and enhance engine bay aesthetics. The 1.656-inch neck flange is designed for a precise fit on specific carburetor necks, ensuring a secure seal against contaminants.

• Product Style: Custom Assemblies
• Filter Shape: Round Tapered
• Neck Flange Diameter: 1.656 in (42 mm)
• Overall Height: 2.25 in (57 mm)
• Filter Material: Red Cotton Gauze
• Top/Base Material: Chrome-plated steel
• Part Number: 56-9327
• Warranty: One-Year Limited Warranty

Designed for single or two-barrel carburetors, the K&N 56-9320 Custom Racing Assembly is engineered to increase airflow while providing superior filtration for racing and performance applications. This assembly replaces restrictive stock setups, allowing your engine to breathe more efficiently while ensuring contaminants remain outside the intake track.

This round tapered assembly features K&N’s signature High-Flow Washable Air Filter media, paired with durable chrome-plated top and base plates for a professional finish. The oiled cotton gauze media is designed for longevity and can be cleaned and reused, making it a sustainable choice for custom builds and race setups.

• Part Number: 56-9320
• Filter Shape: Round Tapered
• Neck Flange Diameter: 1.375 in (35 mm)
• Overall Height: 2.25 in (57 mm)
• Top and Base Material: Chrome
• Filter Material: High-Flow Washable Cotton Gauze
• Application: Fits single or two-barrel carburetors
• Warranty: One Year Limited Warranty

The K&N 56-1620 Custom Round Racing Assembly is engineered to maximize airflow for single or two-barrel carburetors while maintaining superior filtration. This complete kit replaces restrictive factory housings with a high-performance setup designed for racing and custom applications, ensuring your engine breathes cleaner, colder air.

• Features a high-flow, washable, and reusable K&N oiled cotton gauze air filter.
• Includes custom chrome-plated top and base plates for corrosion resistance and a show-quality finish.
• Designed to boost horsepower and acceleration by reducing intake restriction.
• Fits most single or two-barrel carburetors requiring a 2.406-inch internal diameter mounting.

Technical Specifications:

• Part Number: 56-1620
• Shape: Round
• Outer Diameter: 5.875 in (149 mm)
• Inner Diameter: 2.406 in (61 mm)
• Height: 1.75 in (44 mm)
• Filter Material: Red Cotton Gauze
• Top Material: Chrome
• Warranty: One Year Limited Warranty

Fits 1975-1981 Triumph TR7 models.

The K&N 56-1400 Custom Round Air Filter Assembly is engineered to provide increased airflow for single or two-barrel carburetors. This racing-style assembly features a high-luster chrome-plated top and base, paired with a washable and reusable red cotton gauze filter media. Designed to replace restrictive factory air cleaners, it offers a compact 1.75-inch height profile suitable for applications with limited engine bay clearance.

• Manufacturer Part Number: 56-1400
• Inner Diameter: 4.5 in
• Outer Diameter: 5.875 in
• Height: 1.75 in
• Filter Color: Red
• Top/Base Material: Chrome-Plated Steel
• Filter Type: Washable High-Flow Cotton Gauze
• Compatibility: Single or Two Barrel Carburetors
• Warranty: One Year Limited Warranty

The K&N 54 Series Orion Universal Air Cleaner Assembly is a high-performance shielded intake system designed to increase volumetric efficiency and engine horsepower in custom applications. By combining the high-flow characteristics of an open-element cone filter with the thermal protection of an enclosed air box, this universal assembly provides a significant upgrade for vehicles where a standard vehicle-specific intake is not available.

The unit features a durable injection-molded housing that functions as a thermal barrier, shielding the intake air from engine bay heat soak to prevent power loss. Internally, it utilizes K&N’s signature cotton gauze filter media, which is washable, reusable, and engineered for high flow with minimal restriction. The assembly is built for versatility, including a 1/4-inch NPT threaded fitting on the filter base for optional vent adapters or PCV connections.

• Injection-molded heat shield housing for thermal management
• 76mm (approx. 3-inch) air filter base flange
• 100mm (approx. 4-inch) housing intake diameter
• Removable and washable oiled cotton gauze air filter
• 1/4-inch NPT threaded fitting for vent adapters
• Includes template for custom vinyl wrap personalization
• Manufacturer Part Number: 54-5000
• K&N Million Mile Limited Warranty