★★★★★ 5
As described, great quality
Perfect fit and function for 2018 Subaru Outback
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
K&N Universal Rubber Filter 4in FLG 9IN x 5-3/4IN B / 7 x 4-1/2IN T / 7-1/2IN H
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Universal Rubber Filter 4in FLG 9IN x 5-3/4IN B / 7 x 4-1/2IN T / 7-1/2IN HSKU: RE 1040 UPC: 024844374714 K&N Universal Rubber Filter 4in FLG 9IN x 5 3 4IN B 7 x 4 1 2IN T 7 1 2IN H RE 1040 K&N RE 1040 is a round tapered universal clamp on air filter with 4 inch flange diameter 9 x 5. 75 inch base 7 x 4. 5 inch top and 7. 5 inch height. It fits Chevrolet C K1500 3500 GMC C K Sierra Dodge Ram 1500 3500 Pontiac Grand Prix Impala Monte Carlo from 1996 2012 plus racing vehicles generators snowmobiles tractors. This filter
Quick Dispatch:
Your K&N Universal Rubber Filter 4in FLG 9IN x 5-3/4IN B / 7 x 4-1/2IN T / 7-1/2IN H orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your K&N Universal Rubber Filter 4in FLG 9IN x 5-3/4IN B / 7 x 4-1/2IN T / 7-1/2IN H ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.8 ★★★★★
Based on 709 reviews
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Product Reviews
★★★★★ 4
Good product
This is a long life filter without having to oil and wash like a lifetime k&n.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 5
Fits great
Excellent value for the money and fits great. Does exactly what you need it to.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
buen articulo funciona perfecto.
buen articulo funciona perfecto.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Fits 2010 Subaru Forester with 2.5 non-turbo
Definitely looks and feels like a better than OEM air filter. Not sure of any other benefits.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
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