


Mishimoto Silicone Reducer Coupler 45 Degree 3.5in to 4in - Black
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Mishimoto Silicone Reducer Coupler 45 Degree 3.5in to 4in - BlackThe expansive line of silicone couplers from Mishimoto continues to expand! We now offer a broad range of 45 degree transition couplers applicable for use in both coolant and air passage systems. Finding the ideal coupler for your project can be challenging, but we make it easy with a massive selection of various bends, sizes, and colors to achieve your goals. Our couplers feature four layers of silicone, each divided by a layer of heat resistant
Quick Dispatch:
Your Mishimoto Silicone Reducer Coupler 45 Degree 3.5in to 4in - Black 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 Mishimoto Silicone Reducer Coupler 45 Degree 3.5in to 4in - Black 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]
- Please click here for more details>>> Return & Exchange Policy
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★★★★★ 5
Great product!
Style: Two Pieces
These were a perfect fit for my MB and very easy to install. Great value for the money. They should last given the way they were built.
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Reviewed in the United States on November 14, 2025
★★★★★ 5
Work good
Style: One Piece
Fit and work perfectly.
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WHAT A MARVELOUS AIR FILTER.
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SO FAR THESE FILTERS ARE MARVELOUS. THESE FILTERS ARE WELL MADE ESPECIALLY FOR THE PRICE. LOOKS LIKE A SIGNIFICANT $$$$ SAVINGS. TMP.
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Reviewed in the United States on March 9, 2026
★★★★★ 4
OEM quality
Style: One Piece
Good quality replacement. Perfect fit
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Reviewed in the United States on April 9, 2025
★★★★★ 5
Exact fit, no trimming needed
Style: One Piece
Ordered this for my Ford F-150 and it dropped right into the airbox perfectly — same dimensions as the OEM filter, same end seals, same fit. No gaps, no air bypass around the edges. Clean swap in under five minutes. Engine runs smooth and the price is unbeatable.
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