Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 17 - Jun 22
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Description
#521RSE ElectricTri-Gear 90 deg Main & 90 deg FW Nose RS ReadyDISCONTINUED: THIS PAGE IS ONLY UP FOR RESEARCH PURPOSES. 510 Series Electric Tri Gear Set RoboStrut Ready for 3 8" or 7 16" diameter Strut with 90 degree Mains & 90 degree Firewall Mount Nose (set) The 510 series can take a 3 8" or 7 16" diameter RoboStrut or 3 16" diameter gear wire is also available for the main gears. The Nose Gear unit also offer a firewall or rail mounting system and can take a 3 8" diameter RoboStrut or 5 32 " diameter gear
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 2037 reviews
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Product Reviews
★★★★★ 5
Fits 2024 Land Cruiser 1958
Size: 1" x 1" x 1"
Easy to install. Perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Does the job, economical and a perfect fit
Size: 1" x 1" x 1"
Bought exactly 1 year ago for 3rd Gen Tundra. So far, it really does the job. At first I didn’t realize how awesome it was until I had to remove and clean it yesterday. Although I keep my truck immaculate inside and out, after 1 years use, the filter had become extremely filthy and the air had an old mildew, vomit, stank smell. When clean and set for fresh air, I can only faintly notice diesel exhaust smells from those in front of me. I also notice little to no dust accumulation on my dash and flat surfaces. In my opinion the K&N cabin filter kit is an essential tool for cleaning this filter. K&N made the filter, so I would imagine that they know how to clean and refresh it properly. By the way, refresh solution is nearly fragrance free. I bought the refresh kit at a big box auto supply and it came in a mostly black box instead of the white box as sold on here. Don’t know if that means the formulation has changed or not.
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Reviewed in the United States on March 2, 2025
★★★★★ 5
Like A Glove
Size: 1" x 1" x 1"
Perfect fit for ‘26 Tundra.
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Reviewed in the United States on May 22, 2026
★★★★★ 1
Wrong size for Toyota tundra 2023
Size: 1" x 1" x 1"
Bought for 2023 Toyota tundra & it doesn’t fit. Completely wrong size.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Great quality and performance
Size: 1" x 1" x 1"
The quality of the filter is great and it is easy to installed in your car. Also, it helps to improve the performance of your vehicle, keep clean air flowing and avoid bad smells. What I love about it it’s the option to washed it and reuse it over an over.
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Reviewed in the United States on July 24, 2025
