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Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
For Your Every Summer RSVP, with Code: SUMMER15
Description
SUPERTECH K20A 86MM BORE PISTONSUPERTECH K20A 86MM BORE PISTON Supertech Pistons are manufactured from extruded high silicone, enhanced 4032 alloy (with additional Cu, Ni & Mg) that had low thermal expansion, excellent wear resistance, and higher thermal conductivity. Supertech Pistons, with this alloy, have withstood up to 42psi of boost, with alcohol, without any problems. A two or three step forging process yields a fine structural grain which are then submitted to several

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
4.6 ★★★★★
Based on 2053 reviews
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Product Reviews
★★★★★ 4
Seems like an excellent purchase so far!
So far so good! And we really appreciated the little hair cutting tool for the roller—nice touch. We've replaced one bag, one brush head, and one filter using this bargain kit so far, nothing much to complain about. It's not quite OEM quality but it's very likely going to work well enough. We expect to go through one kit like this per year.
Be aware that the rotating brush head replacement (the small round head ones, not the big rollers), have a little philips head screw that you have to remove. This was kind of hard to get off at first. We haven't used one of the replacement rollers yet, expect that we'll go through about two a year with our C10 at the current rate of wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
★★★★★ 5
Great Price and Product
This accessory kit was a good price and great fit for my eufy vacuum. I will buy it again.
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Reviewed in the United States on December 14, 2025
★★★★★ 5
Nice extras
This kit is great to keep my vacuum running! It’s nice to replace the brushed when they get tangled with pet hair.
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Reviewed in the United States on January 9, 2026
★★★★★ 1
buy from Eufy only for reliable fit.
vacuum bag doesn't fit correctly and the vacuum doesn't register it and won't work with it.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Vacuum
Came as advertised
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Reviewed in the United States on February 24, 2026
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