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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
RockShox 50 hour Rear Shock Air Can Service Kit Basic: Monarch DebonAirReplacement seal, bushing, o ring, and bottom out negative bumper kits for servicing Rock Shox rear shocks (pre 2008 oil damper units are no serviceable) Today's Stock Status 10+ Available to ship in 2 4 Business Days UPC: 710845757525 EAN: Not available Manufacturer Part Number: 00. 4315. 032. 540 RS4091 RS8839 140322 Q0 L
- Replacement seal, bushing, o-ring, and bottom-out/negative-bumper kits for servicing Rock Shox rear shocks (pre 2008 oil-damper units are no-serviceable)
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 710845757525
EAN: Not available
Manufacturer Part Number: 00.4315.032.540
RS4091 RS8839
140322-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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4.8 ★★★★★
Based on 1489 reviews
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Product Reviews
★★★★★ 4
Fresh Air Upgrade for My 2024 Impreza
Installed this in my 2024 Subaru Impreza, and it fit perfectly—no issues. The air smells noticeably cleaner now, and it took less than 10 minutes to swap out. The carbon and HEPA filtration does a great job clearing out odors, dust, and pollen—definitely an upgrade over the factory filter.
The build feels sturdier than the OEM version, though it does have slightly fewer pleats. Might mean it needs replacing a bit sooner, but for the price and performance, I’m fine with that tradeoff.
If you’re looking for a quick, affordable way to improve your cabin air, this one’s a solid pick.
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Reviewed in the United States on June 26, 2025
★★★★★ 5
Well built, good fit.
I like it so well, I just bought two more to keep on the shelf for when the price doubles. Seems better built than oem, but I don't know how you can judge the filtration; seems good though.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Great product
Perfect fit for 21 Cross Trek
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Good Product
Size: (Pack of 1)
Came with all necessary supplies. Seemed to be of good quality and my taco is running well after the oil change. Will buy again.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Works Fine, Fits Fine
Size: (Pack of 1)
Seem to work and fit just fine and should be better than a cheap paper filter. They cost more but I change the oil on the 5's and the filter on the 10's so it evens out. Not going more than 10K on the filter. If you are only going to use the filter for 5K miles I would stick with the Toyota factory filter. I use the K&N filters on a 2017 Toyota Sienna and a 2018 Toyota Highlander. Both are V6
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Reviewed in the United States on October 23, 2025
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