KEZE 386 Pc Metric Viton O Ring Assortment Kit - Durable Repair Set

In this review the KEZE 386 Pc Metric Viton O Ring Assortment Kit is evaluated for DIYers, plumbers and workshop techs who need a durable, broad selection of seals. The kit's single biggest selling point is the wide assortment of 30 metric sizes made from brown 75A durometer fluorocarbon, which delivers resistance to high temperature, oils and many chemicals; that makes it a useful go-to set for plumbing, pressure washers and hydraulic lines. The included set of four pick and hook tools and a stackable storage box round out a ready-to-use kit for repairs and maintenance.

Key Features

• 386-piece assortment: Provides a comprehensive selection of 30 metric inner diameters so technicians can find the right O-ring on the first try.
• Viton FKM material: Brown fluorocarbon 75A durometer construction resists high temperature, oils and many chemicals for longer life in harsh service.
• Wide temperature range: Rated to -15F to +446F, suitable for hot engine environments and many industrial hydraulic applications.
• Removal tools included: Four chrome vanadium hook and pick tools with non-slip grips make extracting old rings faster and reduce damage to fittings.
• Organized storage box: A compartmented toolbox keeps sizes sorted and portable, reducing search time during repairs.

Who It's For

The kit is ideal for homeowners who perform regular tap or outdoor faucet maintenance, small shop mechanics working on motorcycles, boats and trucks, and technicians servicing pressure washers and hydraulic cylinders. The chemical and temperature resistance of the Viton material makes it a practical choice where oil and heat exposure are expected.

Users who primarily need metric sizes and chemical resistance will benefit most; however, those wanting exclusively standard inch sizes or specialty elastomers beyond FKM should look elsewhere. If a project demands very large cross-sections or nonfluorocarbon compounds, consider a dedicated specialist kit.

Pros & Cons

Pros

• Extensive variety of metric sizes reduces downtime by matching seals on first attempt.
• Viton material offers strong resistance to heat, oil and many chemicals for durability in service.
• Included pick and hook set speeds removal and limits damage to mating parts.
• Compact storage box keeps rings organized and portable for field service.

Cons

• Some customers report occasional missing parts, so inventory check on arrival is recommended.
• Brown Viton rings may be overkill for simple low-temperature plumbing where cheaper materials suffice.

Specifications

Pieces	386 pcs
Sizes	30 metric IDs from 3mm to 44mm
Cross Sections	2mm, 2.5mm, 3mm, 4mm
Material	Viton fluorocarbon, 75A durometer
Temperature Range	-15F (-26C) to +446F (+230C)
Included Tools	4 pick and hook tools (straight, hook, 45 degree, 90 degree)
Storage	Compartmented toolbox

Our Verdict

The KEZE 386 Pc Viton O Ring Assortment Kit is a practical, value-packed choice for anyone who needs a broad range of metric O-rings that resist heat and oils. It is especially useful for plumbing repairs, pressure washers and light hydraulic work because of the FKM material and included removal tools. For general maintenance shops and homeowners who like to be prepared, it represents sensible value and convenience.

Frequently Asked Questions

Are the O-rings suitable for fuel and oil applications?
Yes, the Viton fluorocarbon material offers good resistance to fuels, oils and many chemicals within the stated temperature range.

Does the kit include tools to remove old O-rings?
Yes, four chrome vanadium pick and hook tools are included: straight, hook, 45 degree and 90 degree tips with non-slip grips.

What should I do if pieces are missing?
Inspect the storage box on arrival and contact customer service for replacement or refund if any items are missing.