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Description
Supertech Honda B18A/B18B/H23 Exhaust Valve Guide 6.6mm Stem - Set of 8Experience precision engineering with the Supertech Honda B18A, B18B, and H23 Exhaust Valve Guides featuring a 6. 6mm stem diameter. Designed for performance enthusiasts looking to optimize their engine components, these valve guides ensure accurate valve alignment and smooth operation, contributing to improved engine efficiency and longevity. Constructed to meet the demands of high performance applications, this set includes eight valve guides,
Experience precision engineering with the Supertech Honda B18A, B18B, and H23 Exhaust Valve Guides featuring a 6.6mm stem diameter. Designed for performance enthusiasts looking to optimize their engine components, these valve guides ensure accurate valve alignment and smooth operation, contributing to improved engine efficiency and longevity.Constructed to meet the demands of high-performance applications, this set includes eight valve guides, suitable for restoring or upgrading the exhaust valve system in compatible Honda engines. Each guide is manufactured to rigorous standards, offering durability and resistance to wear under intense operating conditions.
Perfectly tailored for automotive hobbyists and professionals, the Supertech valve guides provide a reliable solution without compromising quality. Their precise fitment helps maintain optimal valve function, aiding in the prevention of excessive valve stem movement and ensuring consistent combustion chamber sealing. Upgrade your engine components with these specialized valve guides to enhance your tuning project with trusted performance components.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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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
4.7 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Nice fit!
Color: Saxony Blue Melange, Size: X-Large
Great fit. Very comfy. Not too heavy. (Think late spring, early fall weather.) Material and stitching seems high quality. Slightly stretchy fabric. We’ll see how it holds up to wear and washing, but so far so good. I’ve already purchased another in a different color.
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Reviewed in the United States on November 1, 2025
★★★★★ 5
Fits true to size and good quality
Color: Black Grey Heather, Size: Large
I gave this 5 stars because I was pleasantly surprised by the fit and quality. The zipper is nice, it zips firm, it's not flimsy like a cheap zipper. For reference I am 5'7", athletic build, and 198 pounds. I ordered a size large and it fits perfect. I will buy more for sure.
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Great fit, excellent material. Will buy more!
Color: Cobalt Heather, Size: Small
Great quarter zip comparable to the high end designer brands. Buttery material, well fitted. Runs a bit big so I sized down and it’s a perfect trim cut fit. Will buy other colors. Would like to see some patterns in addition to the solid colors. I’m 5’10” 165lbs and small size fits perfectly.
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Reviewed in the United States on September 20, 2025
★★★★★ 5
Perfect for the gym!
Color: Cobalt Heather, Size: XX-Large
I bought 2 (black and blue) and wear them to the gym weekly. They wash & dry very well! They are nice enough for casual wear too. I’ll probably buy a 3rd color soon!
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Good quality
Size: XX-Large, Color: Dark Green Melange
I love these quarter-zip pullovers. I bought this one as a gift, but I personally own two others myself, which should say a lot. They’re comfortable, lightweight, and extremely versatile. I wear mine for golf, casual office days, and layered when it’s cooler out—they pair well with just about anything.
For the price point, they really can’t be beat. The look and feel are comparable to options that cost significantly more. Great value, great performance, and a sharp, clean style. I’ll likely keep buying more.
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Reviewed in the United States on March 3, 2026
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