Description
This Busch O-ring is made from Viton, a high-performance fluoroelastomer. Think of it as a super-rubber. It stands up to high temperatures that would ruin ordinary seals. It also resists the chemical effects of pump oils and solvents.
This means it lasts longer and performs more reliably. It stays flexible and seals perfectly, even in the pump’s hottest, most demanding spots.
You’ll use this specific 35x4mm size to replace worn O-rings during pump service. Common locations include shaft seals, cover plates, and various fittings. Using the correct Busch part ensures a perfect fit in the groove.
Remember, O-rings are single-use seals. Once you remove a part, you should always fit a new O-ring. Reusing an old, compressed one is a common cause of leaks.
Keeping a few of these Viton O-rings in your toolkit is smart. They are a small, inexpensive part that protects your pump from big problems. Ensure a leak-free rebuild with this durable, seal.

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