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Supertech BMW B58 Beehive Valve Spring Kit

Marsoni M251S
Sale price$486.44
Pay 4 payments of $121.61 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Supertech BMW B58 Beehive Valve Spring KitSKU: SPRK MCB58 Conical Valve Spring Kit Seat Pressure: 75 @ 37mm Open Pressure: 155 @ 10mm Max Lift: 12. 2mm Coil Bind: 23. 20mm Outer Spring ID: 17. 60mm Seat Locator: SEAT BM48 T1 Retainer qty: 24 Retainer: RET BMB48 TE + RET BMB48 TI Kit Spring qty: 24 Kit Spring: SPR FE20BE Rate: 8 Inner Spring ID: 14. 20mm Inner Spring OD: 21. 00mm Outer Spring OD: 24. 40mm Seat Locator qty: 24 Engines BMW B58B30
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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.
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4.4 ★★★★★
Based on 393 reviews
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Verified Purchase
Peter M. Klein
Whiting, US
★★★★★ 5
Easy to Set up
Style: 1 to 1 IR Repeater
Works great. Have Sonos playbar mounted behind TV and it does not support eARC, only IR, for use with AppleTV remote. This solved problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
T
Verified Purchase
Tbilisi
Omaha, US
★★★★★ 5
Works just as advertised!
Style: 1 to 1 IR Repeater
Super east to set up. Haven't had any issues in our very long living room so it must work at around 25ft
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
A
Verified Purchase
alex
Boise, US
★★★★★ 1
DOESNT WORK / REFUND ONLY WITH RETURN
Style: 1 to 1 IR Repeater
Does NOT work. DO—NOT—-BUY Does NOT have the parts in the instructions. ONLY WAY TO GET A REFUND IS TO TAKE IT TO A STORE AND PAY TO HAVE IT RETURNED UNLESS ITS A STAPLES. DO NOT BUY.
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Reviewed in the United States on May 5, 2026
K
Verified Purchase
KH
Draper, US
★★★★★ 4
Works as advertised with minor aiming quirk
Style: 1 to 1 IR Repeater
Setup was quick and straightforward. I plugged it in, placed the receiver, and it started relaying signals right away. It does exactly what it is supposed to do and successfully extends remote control range to my equipment without any complicated configuration. The only issue I have noticed is that it can be a little directional. I sometimes have to angle my remote slightly from the left or right instead of pointing straight at the receiver for it to register consistently. It is not a dealbreaker, just something to keep in mind when deciding where to place it. Overall, it performs its intended function well and is a solid option if you need an IR repeater, especially considering the price and simple setup.
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Reviewed in the United States on February 22, 2026
M
Verified Purchase
moneill20
Bozeman, US
★★★★★ 5
It works!
Style: 1 to 1 IR Repeater
I’ve been wanting to use my DVD player more often, when I work at my desk, but it’s situated too far for the remote. This device works perfectly, now I can enjoy so many old DVDs without having to move or rearrange my whole setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026

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