EE 511 Air Filter

EE-511 Air Filter – Premium Protection for Vintage Classics

Ensure your vintage engine breathes clean with the EE-511 Air Filter. This filter is specifically designed as a high-quality replacement for the classic Honda part number 17211-001-020.

Whether you are restoring a showroom-quality 1960s Super Cub or maintaining a reliable daily runner, the EE-511 provides the precise fit and filtration efficiency required to protect your engine from dust and road debris.

Key Features:

• Precision Fit: Engineered to the exact dimensions of the original Honda "Old Stock" filters.

• Enhanced Filtration: High-grade paper media ensures maximum particle trapping without restricting airflow.

• Durable Housing: Built with a sturdy frame to withstand the vibrations of small-displacement engines.

• Easy Maintenance: Direct "drop-in" replacement for the factory airbox—no modifications required.

Verified Compatibility & Cross-Reference

The EE-511 is a specialized filter for small-engine motorcycles and scooters. It is verified to replace the following OEM and aftermarket part numbers:

Vehicle Application Guide

This filter fits a wide range of iconic Honda "Cub" and "Trail" series motorcycles, primarily from the 1960s through the early 1980s.

• Honda C100 / CA100 (Super Cub 50)1

• Honda C102 / CA1022

• Honda C105 / CA105 (Trail 55)3

• Honda C70 / C70M / C70 Cub (1971–1981)

• Honda C50 / C90 (Early models)4

• Honda CT90 (Trail 90, 1966–1968)5

• Honda CM91 (Honda 90, 1966–1968)6

Verification Note: While this part number is primarily for motorcycles, some small-engine agricultural equipment may cross-reference this size. Always compare the rectangular shape of your existing filter to the EE-511 before installation.