



K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6 inch Height
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6 inch HeightSKU: RU 1770 UPC: 024844010377 K&N RU 1770 Universal Clamp On Air Filter 2 7 16 inch 20 Degree Flange 3 3 4 inch OD 6 inch Height The K&N RU 1770 universal clamp on air filter fits a wide range of equipment including racing vehicles radio controlled cars generators snowmobiles tractors and custom intakes. Its 2 7 16 inch inside diameter 20 degree angled flange 3 3 4 inch outside diameter and 6 inch height deliver higher airflow for improved horsepower
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4.5 ★★★★★
Based on 433 reviews
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Product Reviews
★★★★★ 5
Works as expected in polluted phoenix AZ
Size: 7.5" x 8.7" x 1.4"
these work great for me and the dealr charges $60 to replace one
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 4
Needs modification to fit Lexus TX 350
Size: 7.5" x 8.7" x 1.4"
Does not have a proper fit on a 2024 Lexus TX 350 without some minor modification. The filter casing has a guide that it's supposed fall into one of the pleats like a notch, however, notice this filter has the white strips which I guess are added structural support. I simply cut the 2 strips on the pleat the guide falls into. The filter will not fall apart by doing this. It's a minor inconvenience that can be easily corrected yourself or simply find another filter that does not have anything blocking the pleats the entire width of the filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026
★★★★★ 5
Fits perfectly
Size: 7.5" x 8.7" x 1.4"
easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
★★★★★ 5
bosch never disappoints
Size: 7.5" x 8.7" x 1.4"
good product+fair price=value for money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
★★★★★ 5
First Rate Quality
Size: 7.5" x 8.7" x 1.4"
Easy installation; design of filter made installation mistake-proof.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
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