SKU: 5030987695

QA1 26 Series Monotube Shock Absorber - 9in Stroke - Sealed Hyperscrew - 9-3 Valving - Steel

$123.75 $137.50
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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

QA1 26 Series Monotube Shock Absorber - 9in Stroke - Sealed Hyperscrew - 9-3 Valving - SteelThe 26 Series shock is a one piece monotube shock that is well suited for a variety of track conditions or as a traction shock in various applications. Constructed with a zinc plated body for corrosion resistance, this shock is a popular choice for modifieds, late models, super stocks and various other classes. Works best on rough tracks and as an easy up shock on many dirt cars, and on bumpy asphalt tracks in all banking types. Made with a 2'' O. D.

The 26 Series shock is a one piece monotube shock that is well suited for a variety of track conditions or as a traction shock in various applications. Constructed with a zinc plated body for corrosion resistance, this shock is a popular choice for modifieds, late models, super stocks and various other classes. Works best on rough tracks and as an easy-up shock on many dirt cars, and on bumpy asphalt tracks in all banking types. Made with a 2'' O.D. zinc plated steel monotube body and available with hyperscrew, sealed Hyperscrew (IMCA Legal) or Schrader valve configurations, the 26 Series shocks use deflective disc valving with either linear, digressive or linear/digressive valving. The hyperscrew equipped shocks have a threaded round port near the bearing end of the shock body. This hole is then sealed with a small screw that has an O-ring built into it, sealing the nitrogen gas pressure inside the shock. The gas pressure of the sealed hyperscrew configurations is only adjustable by QA1 and QA1 Authorized Rebuilders per sanctioning body, like IMCA, and track rules. With a Schrader valve you can easily adjust your gas pressure. Much like adding air to your car tires, the Schrader valve allows you to make ''on the fly'' gas pressure adjustments between heat races and features to adjust for varying track conditions. The 46 MM piston allows for maximum car control at all shaft velocities. They are racer rebuildable and revalveable for unparalleled repeatability. Made in the USA and 100% dyno tested and serialized.

  • Every QA1 shock is dyno-tested and serialized to guarantee peak performance
  • Multiple valving curve and gas charging options
  • Racer rebuildable and revalveable
  • Made in the USA
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 5030987695

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4.1 ★★★★★
Based on 8 reviews
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Product Reviews
A
Verified Purchase
Aliza
Battle Creek, US
★★★★★ 5
Fresh, Clean Air — Excellent Quality Cabin Filter!
Size: 9.7" x 9.3" x 1.8"
This premium HEPA‑rated filter does an outstanding job of keeping dust, pollen, and tiny airborne particles out of the cabin — much better than standard cabin filters. It’s designed and tested to meet true HEPA filtration standards, effectively capturing up to 99.97 % of particles down to 0.3 microns in size, so the air inside the car feels noticeably cleaner and fresher. Installation was straightforward and fit exactly in place in my vehicle with no modifications needed. The high‑quality filter media feels dense and well‑constructed, with built‑in structural support to help it hold its shape throughout its service life.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
T
Verified Purchase
Tracy W.
Boise, US
★★★★★ 5
Must Buy HEPA Cabin Filter
Size: 9.7" x 9.3" x 1.8"
Great filter and excellent Value! And, it’s a Bosch !!! Description and sizing were exactly as advertised. DIY install was easy and it fit my 2019 Highlander perfectly ! Filter is HEPA and well made and is a good thickness, so much better than the flimsy one the car dealership installed. Impressive ! Highly recommend!
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Reviewed in the United States on March 7, 2026
M
Verified Purchase
Monica
Carnegie, US
★★★★★ 5
good performance
Size: 9.7" x 9.3" x 1.8"
The installation is simple, the size is just right, and most importantly, the price is very good. It is the best choice for consumables.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
I
Verified Purchase
iamoverrated
Massapequa, US
★★★★★ 5
A Lungful of Freedom
Size: 9.7" x 9.3" x 1.8"
Dateline: The Passenger-Side Footwell of a Toyota Venza, Sunday Night. We spend our lives in sealed metal boxes, hurtling through a thick, invisible soup of our own collective filth. A foul cocktail of exhaust fumes, road dust, tire particles, and whatever strange, pollen-based miasma the world decides to throw at us on any given day. To breathe that poison in, unfiltered, is an act of slow, unwitting suicide. You need a line of defense. A gatekeeper for your own lungs. Enter the Bosch 6055C HEPA Cabin Air Filter. It is not a glamorous part. It is not a performance upgrade that adds horsepower or prestige. It is a simple, pleated rectangle of paper and charcoal, a humble guardian destined to live out its days in a dark plastic cave behind your glovebox. But its mission is a noble one. The replacement process is a moment of pure, unadulterated, five-minute victory over the dealership's service department. You pop open the glovebox, you unclip the old filter tray, and you pull out the old soldier. And what you find is a horror show. A grey, matted testament to the unseen war it has been fighting on your behalf, choked with leaves, dirt, and the ghosts of a thousand diesel trucks. It is the face of the enemy. You unwrap the new Bosch filter. It feels solid, well-made. The pleats are clean and numerous. I laid it side-by-side with the outgoing Denso filter—a brand that supplies the automakers themselves—and I could find no meaningful difference. The quality was equal. The construction, robust. This was no flimsy, cut-rate pretender. This was a serious piece of hardware from a serious company. You slide the clean, white Bosch into the tray, snap it back into its dark little home, and close the glovebox. The deed is done. You have performed a life-saving transplant on your vehicle's respiratory system in less time than it takes to listen to a single pop song. And the value… the value is the sweet, sweet punchline. For a fraction of what a dealership would charge you for the same simple service, you have installed a top-tier, HEPA-grade filter from one of the most respected names in the business. You have guaranteed yourself a clean, breathable bubble of personal space as you navigate the toxic jungle of the modern roadway. This is not just a filter; it's a small, affordable act of rebellion. It’s a declaration that you, and you alone, are the master of the air you breathe. It is a simple, effective, and profoundly satisfying piece of gear. Highly recommended.
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Reviewed in the United States on June 9, 2025
J
Verified Purchase
JoAmazonDude
Lake Worth, US
★★★★★ 4
Great Upgrade to your Cabin Filter. Fits 2018 Subaru Outback
Size: 9.7" x 9.3" x 1.8"
This is a great filter upgrade to your cabin filter. This is better than the Subi standard part. Fits my Subaru outback. NOTE: Subi marks their filter with an 'up' arrow; however, this filter is marked with a 'airflow' direction. Direction of air flow is toward the blower motor so it will point downward when you install it.
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Reviewed in the United States on April 25, 2026

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