Best in 7 days
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Description
4097721C91 | Genuine International® DEF Sensor Head AssemblyDescription: DEF Sensor Head Assembly Condition: New Brand: International Part Number: 4097721C91 Fitment Guide 4097721C91 : For Tier 4 6. 7L ISB QSB A DEF Sensor Head Assembly 4097721C91, sometimes just called a DEF head, is a multi function module that sits inside the Diesel Exhaust Fluid (DEF) tank and monitors key parameters of the DEF. 1. Measures DEF Level The sensor tells the engine computer how much DEF is in the tank. This allows: Low DEF
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 522 reviews
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Product Reviews
★★★★★ 5
Nice.
Size: Medium, Color: Prime Pink/White Assorted
These were great quality and perfect fit. They held up. Under Armour seems to make the better quality socks than others.
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Reviewed in the United States on January 5, 2026
★★★★★ 5
Perfect Fit and Versatile for All-Day Wear
Size: Small, Color: White/Cerise Assorted
I absolutely love these socks! Though they're technically kid-sized, they fit my size 5-6 women's feet perfectly and are incredibly versatile. I wear them for workouts, casual outfits, and pretty much all the time. They’re reliable, well-fitting, and comfortable throughout the day. The quality is excellent, and they hold up well even with frequent use. If you’re looking for socks that combine great fit with durability and style, these are definitely a top pick!
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Reviewed in the United States on August 28, 2024
★★★★★ 5
Great socks
Size: Medium, Color: (025) Castlerock / Castlerock / Anthracite
Love these little socks. Soft and stay in place, no falling down in my shoe. I will definitely be buying more. Holding up well after multiple washings.
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Reviewed in the United States on October 8, 2025
★★★★★ 5
Great fit, no slip
Size: Medium, Color: (025) Castlerock / Castlerock / Anthracite
These looked too small for my feet, but now I love wearing them as they are comfortable and stay on my feet! They look great and the colors are easy to match. Excellent value for the money in my humble opinion.
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Reviewed in the United States on May 28, 2025
★★★★★ 4
Girls socks
Size: Small, Color: Neo Turquoise/Assorted
Girls socks. Quality good
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Reviewed in the United States on October 28, 2024
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