Wiseco GROOVE LOCK SPACER 4.352 - 4.416inch Oil Rail Support Shelf Stock

Wiseco GROOVE LOCK SPACER 4.352 - 4.416inch Oil Rail Support Shelf Stock

Marsoni

M251S

$21.49

Get it in 3 business days with 1 day shipping. Friday, May 29

Wiseco GROOVE LOCK SPACER 4.352 - 4.416inch Oil Rail Support Shelf StockBorn over 80 years ago from the passion for racing, Wiseco is a world leader in manufacturing high performance, forged pistons for the motorcycle, automotive, ATV, snowmobile, personal watercraft, and outboard marine markets. Wiseco Groove Lock Spacers are engineered, forged, and machined on cutting edge equipment in the U. S. at Wiseco's Mentor, Ohio manufacturing facility.

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I do have to update my experience. This still is a very comfortable pillow, it's just I can't sleep with it under my head (it's now my hug pillow). After using for 2 weeks, I developed severe neck spasms. Pillows are very individulized and as it turns out, I probably need a firmer pillow than this "highly" comfortable pillow can offer. Will NOT change my rating. Wow! I'm impressed with this pillow so far. I'm a side sleeper mostly but chose the medium-high loft 6.2" as recommended which was the perfect height. I didn't see any taller options but this has turned out just right. I did hours of research before chosing this product, which turned out to be advantageous. It's not as cooling as my old memory foam pillow with the gel layer but it stays cool long enough that I don't have to move the pillow around to be comfortable before falling asleep. It's surprising lightweight. I like it much more than any memory foam I've ever had. The best news was that within a few days my headaches and neck pain have improved by 80%. I am really very impressed with the quality of this pillow. It is softer than I anticipated but still firm enough to keep my head elevated giving me perfect spine alignment and great support. It truly is the MOST COMFORTABLE supportive Pillow I have ever slept on! The smell is only minor at It's worst and has nearly disappeared after just 4 days. It is a mild latex smell but definitely NOT petroleum. It's in the moderate price range at ~$100 and worth every cent. High value for the price. I really really like this pillow and highly recommend it. Big fan! Might irder a 2nd as a backup if it doesn't last but it's so well made I feel that won't be a problem.

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Reviewed in the United States on January 22, 2026

Verified Purchase

Saydí moscoso

Port Orchard, US

★★★★★ 5

Almohada

Size: Standard (Mid Loft), Number of Items: 1, Size: Standard (Mid Loft), Number of Items: 1

The pillow is of very good quality—it is worth every penny spent. It is soft, and my daughter sleeps very comfortably.

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Reviewed in the United States on May 25, 2026

Verified Purchase

Ankit

San Leandro, US

★★★★★ 5

Excellent comfort and support!

Size: Standard (Mid Loft), Number of Items: 1

The pillow feels premium from the first night and delivers soft and stable support. The pillow holds its shape and didn't have any chemical smell out of box. Worth the price and I would buy it again.

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Reviewed in the United States on December 30, 2025