Ronstan Series 19 Utility Block - Single - Ferrule Eye Head - RF663

Ronstan Series 19 Utility Block - Single - Ferrule Eye Head - RF663

Marsoni

M251S

$18.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Ronstan Series 19 Utility Block - Single - Ferrule Eye Head - RF663Series 19 Utility Block Single Ferrule Eye Head Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters, etc on

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I was skeptical at first. How can such a quality performance air filter be so affordable? It fits perfectly and seems to perform and look exactly like the other name brand layered cotton gauze, steel meshed lifetime air filter. I sprayed some K&N oil on this thing and it feels like the engine is breathing a little easier now and performing a little better. As with anything new, your mileage will vary.

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Reviewed in the United States on October 19, 2025

Verified Purchase

big j

Natrona Heights, US

★★★★★ 5

It's better than the paper filters

Awesome air filter 👌

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Reviewed in the United States on March 7, 2026

Verified Purchase

Daniel Raymond

Massapequa, US

★★★★★ 5

It fits 09 ram, works great!

Style: CA9401

Works great on my 09 ram

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Reviewed in the United States on December 28, 2025

Verified Purchase

michael underwood

San Leandro, US

★★★★★ 5

Quality filter at a great price.

Style: CA9401

Great filter, very similar to K&N at a way cheaper price.

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Reviewed in the United States on January 14, 2026

Verified Purchase

scAmazon ShoPPer

Los Angeles, US

★★★★★ 3

Fit perfectly, but questionably thin.

Style: CA11053A

This was an exact fit for my 2017 Kia Forte S. My only convern is that it is half the width of the stock filters. Hopefully the different material will make the difference over time. Didn't notice a loss or gain of torque or acceleration after swapping for my old dirty filter.

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Reviewed in the United States on June 15, 2025