K-N FILTERS E040A4 Air Filter R5B DS7

( Brand: K-n Filters ), ( Manufacturer Part Number: E040A4 ), ( Type: Air Filter ), ( Oe/oem Part Number: 278-14451-00 )

Review K N FILTERS Vintage And Air Filter R5b Ds7 fits ELEMENT R5 R5C RD250 RD350 1970–1972

Introducing the E040A4 Air Filter Element, specifically designed for various classic Honda motorcycle models including the R5, R5B, R5C, DS7, RD250, and RD350 produced between the years 1970 and 1972. This air filter element is an essential component of your motorcycle's air intake system, responsible for trapping dirt, dust, and other contaminants before they reach the engine.

Crafted from high-quality pleated paper material, this air filter boasts an outstanding filtration efficiency. The intricately woven design of the filter media increases the surface area for capturing more particles, ensuring a cleaner airflow to your engine. The paper material is both robust and flexible, allowing it to accommodate different engine sizes and shapes while maintaining an airtight seal.

The E040A4 Air Filter Element features an oval shape with dimensions of approximately 14.6 inches in length, 10.2 inches in width, and 2.0 inches in height. Its compact size enables a snug fit in the airbox of your classic Honda motorcycle. The filter element also comes with a protective paper or foam gasket on the edges to ensure a perfect seal and prevent air leaks.

This air filter element is easy to install, requiring no special tools or expertise. Simply remove the old filter, place the new E040A4 Air Filter Element in the airbox, and secure it in place. Regularly replacing your air filter is crucial for maintaining optimal engine performance and longevity.

In summary, the E040A4 Air Filter Element is an essential upgrade for classic Honda motorcycle owners seeking to improve their engine's air intake quality. Its high-performance filtration capabilities, compact design, and easy installation make it an indispensable addition to your motorcycle maintenance routine.

Pros and Cons of Buying E040A4 Air Filter Element for select Honda models (1970-1972 R5, R5B, R5C, DS7, RD250, RD350)

a. High-performance filtration: The E040A4 air filter element provides efficient filtration, ensuring cleaner air enters the engine, which can lead to better engine performance and longer engine life.

b. OEM (Original Equipment Manufacturer) fit: This filter is designed specifically for the mentioned Honda models, ensuring a perfect fit and proper engine function.

c. Long service life: E040A4 air filter elements have a longer service life compared to some aftermarket filters, reducing the frequency of replacements needed.

d. High-quality materials: The filter is made of high-quality materials that can withstand harsh engine conditions and provide effective filtration.

a. Cost: Original equipment air filter elements, like the E040A4, can be more expensive compared to aftermarket filters.

b. Limited availability: These filters might not be readily available at all auto parts stores, and you may need to order them online or contact the dealership to purchase one.

The E040A4 air filter element is an excellent choice for Honda owners of the mentioned models due to its high-performance filtration, OEM fit, long service life, and high-quality materials. However, the higher cost and limited availability might be a drawback for some consumers. To mitigate the cost, consider purchasing in bulk or exploring aftermarket filters with similar specifications.

If you prioritize engine performance, longevity, and a perfect fit, the E040A4 air filter element is an excellent investment for your Honda motorcycle, despite the higher cost and limited availability. If you're looking for a more budget-friendly option, consider researching high-quality aftermarket filters that provide similar filtration capabilities and fit your Honda model.

Details:

GLOBAL SHIPPING AVAILABLE !!, Bazooka Garage ships WORLDWIDE via US Postal Service. 1973 1974 1975 RD250 RD350. 1970 1971 1972 R5 R5B R5C DS7.

specifications scoofilters:

• for models: R5, R5c, Rd250, Rd350, Element
• for years: 1970-1972
• brand: K-n Filters
• mpn: E040a4
• type: Air Filter
• oe/oem part number: 278-14451-00

shipping scooFilters:

• type: Fixed
• class: Standard
• service: USPS Ground Advantage
• transit: 3-8 Days
• carrier: USPS
• cost: $5.75

offer scooFilters:

• quantity: 1
• started: January 7, 2026
• best offers: True
• options: Ship-to-home
• sold: 0
• availability: In Stock

general scooFilters:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Air Filters
• condition: Used

seller scooFilters:

• city: White Salmon, Washington
• rating: 100.0%
• # reviews: 10987

payments scooFilters:

• wallet: Apple-pay
• other
• credit card: Mastercard

returns scooFilters:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

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