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Ships within 48 hours · Estimated delivery Sep 30 - Oct 5
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Tekno 20T Mod1 Hardened 5mm bore Pinion Gear TKR4180The new line of Tekno RC M5 Pinion Gears stand out from the rest. These are the ultimate pinions for 1 8th Electric and any other MOD1 pinion application. Sized from 11t all the way to 30t, you are sure to find the right gear ratio for racing or those insane speed runs. The M5 set screw ensures that your gear will stay put during operation and ensure you wont strip it out when you need to remove it. The gears are CNC machined, lightened, then hardened
The new line of Tekno RC M5 Pinion Gears stand out from the rest. These are the ultimate pinions for 1/8th Electric and any other MOD1 pinion application. Sized from 11t all the way to 30t, you are sure to find the right gear ratio for racing or those insane speed runs. The M5 set screw ensures that your gear will stay put during operation and ensure you won’t strip it out when you need to remove it. The gears are CNC machined, lightened, then hardened for incredible durability. A laser etched size identification finishes it off.Features:
- Massive M5 set screw grips better and won’t strip out
- Precisely machined and lightened for quiet and efficient operation
- Laser etched for easy identification
- Hardened steel construction
- MOD1 pitch, 5mm bore, standard length shank
- 11t -> 30t sizes for any application
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
4.1 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Great parts replacement kit for Eufy!
Size: Eufy B-18Packs, Size: Eufy B-18Packs
This kit has made it nice keeping up with our Eufy robot vacuum. All parts were free of defect and fit as it should. Instead of replacing individual piece by piece, I now just change all of the replacement parts at one time and it’s good to go for a while! Great value. Great quality. Will definitely be buying this kit again!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Replacement quality is outstanding
Size: Eufy A-21Packs
Great value. Plug and play. Worked as designed
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Reviewed in the United States on May 25, 2026
★★★★★ 4
Perfect fit but originals last longer
Size: Eufy A-21Packs
With 4 cats and 2 dogs and using my Eufy RoboVac 11S Max twice a day until it dies, the brush and filters don't seem to last long. These replacement parts fit perfectly, but do not seem to have the same lifespan as the originals - would have to do the math to see if it would be worth buying original replacements, but that is probably case dependent. Overall happy, but took a star away for shorter wear life.
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Reviewed in the United States on December 1, 2025
★★★★★ 5
Excellent service
Size: 19pcs
Received parts in no time. Parts fit perfectly. Vacuum cleaner is back in operation at a very low price.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Excellent Deal
Size: Eufy A-21Packs
Great deal - pricing is fantastic making it easy to keep my little robo-vaccum running smoothly. The replacement parts are super easy to click into place - and having these multi packs will last a long time. Packaging is secure and the delivery was quick. The brush quality is excellent and function well with the exsisting parts already in place. These are not 'remakes' or 'versions' but an exact match to the originals. The replacement parts keep the same level of low noise and look intact. No guessing required. I'd recommend these for anyone with an Eufy RoboVac.
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Reviewed in the United States on January 14, 2026
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