★★★★★ 4
Good fit
Worked well with no problems.
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Reviewed in the United States on February 24, 2026
Supertech Honda B16A/B18C Black Nitrided Intake Valve - +1mm Oversize - Single
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Supertech Honda B16A/B18C Black Nitrided Intake Valve - +1mm Oversize - SingleSupertech Honda B16A B18C Black Nitrided Intake Valve +1mm Oversize Single
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Exchange/Return Notes
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4.5 ★★★★★
Based on 2405 reviews
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Product Reviews
★★★★★ 5
Great replacement kit
Called around for quotes to get them replaced and everyone was quoting over $2k just for bellows. Figured I’d give it a try. The rubber is good quality and feels soft. Time will tell but this is an easy job if you’re mechanically inclined. Make sure you replace the plastic water pickup fitting while you’re at it. Found mine to be cracked on disassembly and had to wait for a new one. Should be a easy 3-4 hour job if your not doing the bearing and only doing bellows
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Reviewed in the United States on August 26, 2024
★★★★★ 3
Just ok
Qualities OK, but for Marine applications might want better
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Reviewed in the United States on August 3, 2025
★★★★★ 5
Great quality
Just as described.
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Reviewed in the United States on July 22, 2025
★★★★★ 5
Bellows kit review initial inspection’s
Very good quality. The hose clamps were event the better ones you have to pay extra in most cases.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2025
