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Radium Engineering FCST-X Fill Neck Block-Off Kit

Marsoni M251S
Sale price$18.95
Pay 4 payments of $4.74 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Radium Engineering FCST-X Fill Neck Block-Off KitSKU: 20 1060 FCST X Fill Neck Block Off Kit This kit blocks off the filler hole on the Radium FCST X units. Included: Anodized 1 8in (3mm) Aluminum Plate FKM O ring Gasket Seal Stainless Steel Hardware RADIUM Engineering, LLC Since 2010, Radium Engineering's goal has been to simply design and produce high quality aftermarket automotive performance products. Radium Engineering relies on a core team with a passion for innovation to lead the company
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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
4.3 ★★★★★
Based on 1284 reviews
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M
Verified Purchase
Maria
Port Orchard, US
★★★★★ 5
Muy bello
Es como esperaba y aun mejor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2024
J
Verified Purchase
JL
Massapequa, US
★★★★★ 5
Simple and Elegant
Color: White Gold - 3.5 mm, Ring Size: 8
I was looking for a band that would match my white gold engagement ring. This is it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
S
Verified Purchase
Speedy Gonzalez
Lexington, US
★★★★★ 5
Thick, true fit, comfortable, and perfect!
Color: White Gold - 3.5 mm, Ring Size: 6.4, Color: White Gold - 3.5 mm, Ring Size: 6.4
Excellent price gorgeous comfortable fit, thick and beautiful
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
G
Verified Purchase
Garvey
West Palm Beach, US
★★★★★ 5
Very much real gold
Color: Yellow Gold - 2 mm, Ring Size: 7, Color: Yellow Gold - 2 mm, Ring Size: 7
At first I thought that it was too tight. I started wearing it for a couple of weeks and it felt great after.
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Reviewed in the United States on May 22, 2026
S
Verified Purchase
Sep37
Massapequa, US
★★★★★ 5
Buy it
Color: White Gold - 2 mm, Ring Size: 7, Color: White Gold - 2 mm, Ring Size: 7
Beautiful thin band that fits perfectly with my other ring! True to size. Great price for the quality!
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Reviewed in the United States on April 18, 2026

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