Quad and UTV crankshaft seals - engine tightness and durability

Crankshaft oil seals for ATV / UTV are elements responsible for maintaining the tightness of the crankcase and proper pressure in the engine. They prevent oil leaks and air from entering the unit, which guarantees stable operation and full power. At Bajamoto you will find crankshaft simmers for Yamaha, Polaris, Can-Am, CF Moto, Suzuki, Kymco and other models, from the best manufacturers: Athena, All Balls, ProX, Namura and Winderosa.

Why is replacing shaft seals so important?

Crankshaft seals are elements operating at high temperature and under high pressure. Their wear may lead toloss of compression, uneven engine operation, oil leaks or air intake. Therefore, each time the engine is overhauled or the shaft is replaced, new seals should be installed.

• resistance to oil, gasoline and high temperatures,
• precise fit to OEM sockets,
• double sealing lips and compression springs,
• available for 2T and 4T engines,
• OEM products and premium substitutes.

The most frequently chosen crankshaft seals in Bajamoto

• Athena Crankshaft Oil Seal Kit – original OEM quality, fuel and oil resistance
• All Balls Crank Seals – complete sets for ATV 2T and 4T engines
• ProX Crankshaft Seals – Japanese precision and durability in extreme conditions,
• Namura Crank Seals – sealants with increased heat resistance
• Winderosa Oil Seals – sets for sports and performance engines.

Symptoms of worn crankshaft seals

• uneven engine operation and problems with idle speed
• excessive smoke from the exhaust,
• oil leaking from the crankcases or around the shaft,
• decrease in power and compression,
• air intake and difficulty starting.

Replacing crankshaft seals is the basis of every renovation - a small cost that prevents costly failures. Thanks to Bajamoto branded products, you are guaranteed durability and factory tightness.

How to choose the right shaft seals?

When selecting crankshaft seals, pay attention to:

• engine model and capacity,
• unit type (2T / 4T),
• whether the set includes both seals (left + right),
• internal and external diameters (according to manufacturer's specifications).

Each kit at Bajamoto contains detailed technical data and a list of compatible models, and our experts will help you choose the right sealants for your ATV or UTV.

Related categories in Bajamoto

See also: 👉 Quad i engine seal sets UTV 👉 Quad and UTV valve seals 👉 Cylinder seals for Quad and UTV 👉 Conrods Quad and UTV

Shaft seals tested in extreme conditions

Every Quad and UTV crankshaft seal available from Bajamoto has been tested by enduro racers and service mechanics. Athena and ProX are used in factory OEM units, and All Balls and Namura are a sure choice for sports and off-road engines. With them, your engine will remain tight, strong and ready for action in all conditions. 🏁

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