★★★★★ 4
Good fit works well, once I figured installation
Does not show air flow direction
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Reviewed in the United States on January 22, 2026
8C-9123 | Caterpillar® Rod Buffer Step Seal 1.750" - Teflon/Nitrile
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
8C-9123 | Caterpillar® Rod Buffer Step Seal 1.750" - Teflon/NitrileProduct Details : 8C 9123 Caterpillar Rod Buffer Step Seal 1. 750" Teflon Nitrile Part No: RCAT 8C9123 Caterpillar Reference No.: 8C 9123 Product Category: Rod Seals Product Type: Rod Buffer Step Seal Profile: CAT Material(s): Teflon Nitrile Material Code: PTFE NBR Temperature Range: 30F to +230F ( 34C to +110C) Pressure Range: 5800 PSI ( 400 Bar) Surface Speed: < 13 ft s (4 m s) System Of Measurement: Inch Rod Diameter: 1. 750" Dimensions: 1. 750" x
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- Express: 1-2 business days
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Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 1837 reviews
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Product Reviews
★★★★★ 5
Good product
Excellent product, fast delivery, good price. I would recommend this company.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Fits Honda clarity
Easy and correct fit for Honda clarity
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Works Great
I bought this filter for a friend that smokes in the car. Helps reduce the smell a lot. Just make sure it is installed in the right direction.
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Reviewed in the United States on September 20, 2025
★★★★★ 3
Not EXACT fit 2020 Honda Civic
Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit…
It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer.
I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there.
The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.
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Reviewed in the United States on May 17, 2026
