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BFI MK4 1.8T Crankcase Breather Adapter

Marsoni M251S
Sale price$47.99
Pay 4 payments of $12.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
BFI MK4 1.8T Crankcase Breather AdapterDesigned to fit into the stock location for the crankcase breathing system located on the oil filter housing. This adapter gives you the ability to install either braided, nylon, or push lock hoses to replace your existing factory ones. Threaded for a 10 ORB fitting this adapter gives you a world of options! Each adapter includes a brand new OE gasket. *90 fitting not include*
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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.
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4.0 ★★★★★
Based on 478 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
Noticeable scent difference compared to factory standard
Smells clean for months. We are mainly gravel roads and these cabin filters do a great job
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
G
Verified Purchase
Gary H.
Los Angeles, US
★★★★★ 5
It fits perfectly.
Great replacement and a very good price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
A
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 5
Nice and a good price.
Fit our F250 Diesel well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025
R
Verified Purchase
Rick
Bozeman, US
★★★★★ 5
Great fitment
Nice fitment
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Reviewed in the United States on December 15, 2025
L
Verified Purchase
Lauren Drennan
Bozeman, US
★★★★★ 2
F250 cabin filter change
Too thick. Air flow decreased significantly which is terrible in the AZ heat!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2025

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