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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28
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Description
Mishimoto Silicone Reducer Coupler 90 Degree 3.5in to 4in - BlackThe expansive line of silicone couplers from Mishimoto continues to expand! We now offer a broad range of 90 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
The expansive line of silicone couplers from Mishimoto continues to expand! We now offer a broad range of 90-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 embedded fibers. This combination results in maximum durability in extremely harsh environments. Our silicone couplers rated for temperatures up to 330F and can withstand substantial boost pressures. These couplers are available in black, blue, and red, and as with all our products, they include our signature Mishimoto Lifetime Warranty.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.5 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Check the gap!
Plugs work great. I will say for those reviews saying they got a dud. CHECK THE GAP!!! Both plugs were not at 0.030 as advertised. I gapped the plug and it worked perfectly.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Great
Needed one for my mower, got a box of 2. Works great!
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Reviewed in the United States on May 20, 2026
★★★★★ 3
Didn’t work well in my B&S engine
Worked for 15 minutes. Repeatedly stalled. Replaced with name brand and ran like new.
UPDATE. Seller immediately offered refund well outside refund window of opportunity. That’s nice to have someone stand behind their product
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Lawnmower sparkplug
Worked great, easy to install, fast replacement. And 2 for the price of one.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Perfect replacement part
Perfect replacement
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Reviewed in the United States on April 29, 2026