


Valve Chamber - Sparex Part S.40851
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Valve Chamber - Sparex Part S.40851Valve Chamber Sparex Part No. S. 40851 Valve Chamber Bare (MKIII) Product Specifications Alternative to 40848 Brand Spenco Notes Valve Chamber Bare (MKIII) Related products SP S. 3274, SP S. 40871, SP S. 40872, SP S. 42009, SP S. 44142 Tariff Code 8413910090 Suitable For Information Landini 5860 Massey Ferguson 1000, 1004, 1004T, 1085, 1104, 1200, 1250, 133, 135, 135 US BUILT, 140, 145, 148, 150, 152, 155, 158, 165, 165 US BUILT, 168, 175, 175 US
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4.8 ★★★★★
Based on 2108 reviews
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Product Reviews
★★★★★ 1
Unraveling thread, not worth the money
Size: Medium, Color: Bright Red
The quality just keeps getting worse, especially the threading unraveling even when I tried sewing it back. 0/10
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
★★★★★ 5
Breathable, Comfy Fabric with Excellent Support
Size: X-Large, Color: Emerald Green
I'm sixty-three, 5'2 height, and I wear a size 14. I do 3-4 intermediate Pilates sessions each week. I wear black capri yoga pants and a black racer back top of natural fabric, but I add a bit of color with the sports bra. I was very impressed by the fit of this bra; the fabric is soft, breathable, and the bra design offers excellent support. I removed the tag because it was itchy, but I will purchase at least 2 more of these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
★★★★★ 4
Over all great bra
Size: Medium, Color: Black
This is a great sports bra. The material is very soft, very close to aerie offline softness, its padded and very supportive. I gave 4 stars only bc there isn't alot of stretch. I wear a 34 -36 DD. For reference im 5'8 and weigh 165 pounds. I have a muscular build. The bra fits good but getting it over the girls is a struggle dry, I am imagining it will be a two person job to remove after a workout when covered in sweat. That being said the support it provides is amazing so I will buy more. Not a deal breaker. I got the black and bright blu color is just as pictured and doesn't bleed.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Seriously buttery soft and love the fit/color!
Size: Medium, Color: Emerald Green
I am obsessed with the fabric on this sports bra—it really does live up to the "buttery soft" name. I bought it for yoga and lounging, and it’s honestly comfortable enough to wear all day without feeling restricted. The square neck is super flattering and gives it a more stylish look than a typical sports bra.
It fits true to size and the racerback doesn't dig into my shoulders at all. If you’re looking for a Lulu-level feel without the crazy price tag, this is a total win!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Runs large
Size: X-Large, Color: Ocean Blue
This bra runs large. Material is nice, style is good. The lower edge would be comfortable if I had the correct size. I’ll reorder a size or 2 smaller
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Reviewed in the United States on July 8, 2025