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Air Cleaner Element for all CT70 Models EXCEPT for the KO (1970) model.
6 in stock
Item Number: OEM17211-098-771

This is a genuine Honda replacement foam air cleaner element (Honda part #17211-098-771), pre-oiled and ready for installation. It mounts on a metal plate inside the airbox and is designed to deliver reliable filtration and airflow while protecting your engine.
Fitment:
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CT70: 1970–1982
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ATC70: 1973–1985
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SL70: 1973
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XL70: 1974–1976
Dimensions:
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Length: 109mm
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Width: 70mm
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Height: 30mm
This is item #1 in the factory air cleaner assembly diagram. Ideal for stock restorations or routine maintenance with OEM Honda quality.
👉 To maintain filter performance over time, we recommend picking up air filter oil—available in the related products below.

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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Foam filter oil allows maximum airflow while keeping dirt and dust particles out
Filter oil comes in a 16 oz. bottle or 5 1/2 oz. aerosol can
Cleaner's powerful agents quickly strip away grease and dirt, yet won't damage air filters
Spray on, let soak
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This is a genuine Honda replacement air filter cover/end cap, designed to fit a variety of Honda models. Made with the same quality and precision as the original part, it ensures perfect fit and reliable performance for your bike. It is #5 in the diagram
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This genuine mounting plate holds the foam air cleaner element securely in place, ensuring proper function and fit for your bike’s air filter system. NOT FOR K0 models. 1971-1982 (K models)
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This is a genuine replacement rubber air cleaner gasket designed for stock air filter boxes. Made to meet the original specifications, it ensures a proper seal for your bike's air filter, maintaining optimal performance. #6 in the diagram
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MSRP: $39.99
Price: $32.29
You Save: $7.70 (19 %)
Carb to Air Box.Dimensions:
Carb fitment: 1 3/8 inches
All ROUND air boxes
Overall length is 2in.
Honda says that it will fit on the models below, but we use this on all the CT70’s that we have worked on. Please check your dimensions. #10 in diagram
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Air Cleaner Caution Label:
Applies to Air Filter Boxes for the following years:
CT70 1972-1980
Z50A 1972-1978
Z50R 1979-1987
It is #14 in the schematic.
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Air Filter Bolt- the long one that holds all the components together. Will fit Ct70 1970-1994, ATC70 models- see full description for ATC Fitments. It is #19 in the diagram.
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Acorn Nut Bolt for Air Filter Bolt/Cylinder Head Cover
Will fit:
CT70 1970-1994
CT90 1966
Z50A 1969-1978
Z50R 1979-1988
ATC70 1973-1974, 1978-1985
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Honda Insulator Band for the stock Air Filter. Will Fit: CT70 1970-1978; CT90 1969-1975; ST90 1973-1975; Z50A 1972-1978; Z50R 1979-1981 and many other models. This is #6 in the Schematic on a CT70 frame.
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MSRP: $19.98
Price: $15.99
You Save: $3.99 (20 %)
Formulated to work in combination with the cotton fabric in K&N Air Filter elements to provide a superior air filtration system
Quickly penetrates the filter pleats; remains suspended in the filter pleats
Made in the U.S.A.
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