Bilstein B4 OE Replacement-Suspension Strut Cartridge (21-030543)
SKU: 91074222171

Bilstein B4 OE Replacement-Suspension Strut Cartridge (21-030543)

Sale price$79.20 Regular price$88.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Bilstein B4 OE Replacement-Suspension Strut Cartridge (21-030543)Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world famous Bilstein quality. Notes: It's recommended to replace shock or strut in pairs (passenger and driver side at

Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world-famous Bilstein quality.

Notes:

  • It's recommended to replace shock or strut in pairs (passenger and driver side at the same time)

Features:

  • Constant damping characteristics under any load
  • Consistent performance and handling give the vehicle a new car feel every time
  • Proven Bilstein gas pressure technology
  • High OEM quality standards
  • High power reserves for maximum safety
  • Drive as thoughIt's the first time, every time
  • Technology transfer from original equipment manufacturing and motor sports
  • Comprehensive product range
  • High market coverage and availability
  • Ensures a high level of traction and more precise handling
  • A must-have for powerful sport suspensions
  • Added safety in all dynamic driving situations

Original-Equipment. The world’s foremost automotive brands put their confidence in Bilstein quality. Why? Because brand develops and series-produce suspension components in collaboration with Bilstein partners from the automotive industry. By placing your trust in Bilstein experience too, you'll be opting for the Bilstein driving experience when you exchange your suspension components.

Gas Pressure Technology. Over time, the mono-tube gas pressure technology developed by Bilstein has established itself as a standard in automotive construction. This technology involves keeping the oil in the absorber under pressure, which prevents it from foaming when temperatures and loads are increasing. As a result, full damping power is retained even when the system is placed under extreme stress, a feature that can be observed in the self-lowering piston.

Mono-tube Upside-Down Technology. The original and best: The original mono-tube gas pressure shock absorbers bore the Bilstein name, and we're still responsible for producing the best there is. Bilstein's mono-tube technology is the number-one choice in motorsports and series-production sports cars: no other type gives engineers the same freedom to choose the perfect installation location or position (e.g. Upside-Down technology).

Twin-tube Technology. The proven technology of a twin-tube absorber is applied in the vast majority of all vehicles. Bilstein‘s twin-tube absorbers, featuring "original equipment manufacturer” quality that has undergone rigorous testing, offer a marked improvement in driving characteristics with universal spare parts replaced in a timely and efficient manner.

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: 91074222171

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Daniela Esquivel
Whiting, US
★★★★★ 4
So far I like it
I bought this combo because I have used the ordinary before and liked the results. So far I’m not a fan of the lotion, feels a bit too thick for my liking. But other 2 products so far are making my skin look brighter and hydrated. I didn’t break out at first with the oil because I’m sensitive to too much oil but my skin adjusted to it. Definitely value for your money.
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Reviewed in the United States on November 24, 2025
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Joyce Zermeño
Waukegan, US
★★★★★ 5
Buenos
Excelente
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Reviewed in the United States on May 28, 2025
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Some_Guy
Bozeman, US
★★★★★ 5
30+ years of daily rosacea symptoms (cheeks, raccoon eyes, hot flashes, occasional small bumps)
Had an immediate and significant positive effect on my facial rosacea. Symptoms have reduced by approximately 80% over the course of a month or so, greatly reduced the frequency of uncomfortable social situations and associated ruminations. Excellent value for money as well, but if you have facial hair you will end up using a little extra every wash. Sulfur based products reduce my rosacea, but cause an excessive amount of exfoliation on my face several hours after washing. Azelaic acid did not seem to aggravate my skin in that way. It's probably worth trying this one first, I was prepared to seek medical intervention to stop this.
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Reviewed in the United States on May 8, 2026
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Kaitlyn
Massapequa, US
★★★★★ 5
So far, so good!
Love the texture and it seems to calm my sensitive skin! I definitely recommend following the suggestion to let the product sit on your skin for 30-60 seconds, I think it really helps boost the effectiveness
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Reviewed in the United States on May 26, 2026
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Susan Carr
Lake Worth, US
★★★★★ 5
Gentle and genuinely soothing for hyperactive skin
I've been looking to switch my skin care line, since the one I have been using for a few years just keeps increasing their prices. I'm so glad I found this line! Clean ingredients and genuinely good for any skin type. The cleanser is gentle and I like that it doesn't foam. Leave it on for up to a minute after massaging it in and see results after just two uses! My skin is firmer and more even-toned. Hughly recommended using it with the exfoliator and moisturizer!
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Reviewed in the United States on April 30, 2026

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