SKU: 21942443579

BMW B58 / S58 Billet Engine Fluid Cap Set

$121.50 $135.00
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

BMW B58 / S58 Billet Engine Fluid Cap SetBundle and SAVE! Choose your color combo to dress up your engine bay! The Precision Raceworks Billet Engine Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps come in three color options so there is always a color that will work for you! Black with Billet, Black with Blue, and the Stealth series (all black). Many people don't realize it but the OEM caps have a pressure release valve built into them.

Bundle and SAVE! Choose your color combo to dress up your engine bay!

The Precision Raceworks Billet Engine Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay!

These caps come in three color options so there is always a color that will work for you! Black with Billet, Black with Blue, and the Stealth series (all black).

Many people don't realize it but the OEM caps have a pressure release valve built into them. Often times aftermarket companies don't know this either or just don't care. But our team cares about proper function just as much as we care about the appearance in every product we design. For pressure relief, our caps incorporate the OEM internals, so you get all the functionality of the original caps, ensuring a safe and reliable system in place.

These caps offer superior style and performance-grade components that replace the factory cap not just cover it up. The durable billet aluminum construction provides long-lasting protection and dependability that will upgrade your engine bay for years to come!

PLEASE NOTE:

These do require assembly and swapping the pressure relief valves from your old caps to your new billet caps. 

 

Fitment Note

If your primary expansion tank cap looks like this:

You will need to purchase a different coolant expansion tank cap to use as the donor cap. 

BMW Part number 17117639021

  • Weight: 1.1 lbs
  • Material type: Anodized Aluminum
  • O-Ring Material: Viton
  • Retains OEM Pressure Relief: YES

      Fitments

      • Bmw M3 2021 to 2024
      • Bmw M340i Sedan 2019 to 2024
      • Bmw M340ix Sedan 2019 to 2024
      • Bmw M4 2021 to 2024
      • Bmw M440i 2021 to 2024
      • Bmw M440ix 2021 to 2024
      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: 21942443579

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      4.3 ★★★★★
      Based on 6 reviews
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      Kenney Jackson
      Lowell, US
      ★★★★★ 5
      Very nice for the price
      They’ve thought of everything for this. Easily switch heads. Easily change from trimming to edging. The line auto advances keeping you going when many others make you stop and make adjustments.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on December 8, 2025
      P
      Verified Purchase
      PMShaw
      Birmingham, US
      ★★★★★ 2
      Faulty Trigger
      This was the 3rd of 4 B & D Weed Trimmer's I have purchased in the past 4 months. My first B & D Weed Trimmer was purchased 3 years ago. The Trigger finally gave out. Every B & D Weed Trimmer has had a faulty trigger. They give out just past the 30 day return window - trying to get B & D to cover it on their warranty website is ridiculous! No one at Amazon knows anything either. So you either buy another or go to Ryobi...because you cant find any decent replacement blades for it either.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on August 29, 2025
      H
      Verified Purchase
      huggable
      Lowell, US
      ★★★★★ 5
      Trimmer
      Works great
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on July 26, 2025
      B
      Verified Purchase
      Bill Reichart
      Lexington, US
      ★★★★★ 5
      Good for household use.Even my wife likes it!!
      Good product.I had one previously that lasted for years.I like the lightweight and power is more than adequate!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on June 7, 2025
      D
      Verified Purchase
      D. Bayne
      Natrona Heights, US
      ★★★★★ 5
      Quick, powerful, and easy to use
      Style: 2 x 2.0Ah
      When my wife and I bought our latest home, I got bitten by the battery-powered lawn equipment bug. Because our lawn is a lot smaller and flatter than our last home, I refrained from having landscapers regularly maintain this new lawn. This means I now have every piece of equipment one could possibly want to keep our yard looking beautiful Before purchasing this last item for our lawn, I was using a weed whacker to do the edging. This was tedious and not very precise. Because I have all Greenworks-branded equipment, this edger was a no-brainer. Even though most of our battery-operated lawn equipment uses 60v batteries, I opted for this smaller dual-battery setup to save a little weight and money. Because of the small battery sizes, the edger is perfectly balanced and not one bit unwieldy. I am able to quickly clear all of our sidewalk, lanai, and driveway surface edges within minutes. Up to this point, I had never used an edger before. It literally took less than 30 seconds to get it buzzing correctly along the surface edges of our property. If not trying to do a large commercial area, this edger will probably work for most residential applications. Quickly and easily.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on July 24, 2025

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