- New
PROX crankshaft bearing and seal kit for KAWASAKI KX 250, KX 250 X from 2021 to 2026
€104.90
Tax Included
The bearings and oil seals that support the crankshaft in the crankcase.
PROX offers this crankshaft bearing and seal kit for KAWASAKI KX 250, KX 250 X from 2021 to 2026. The crankshaft spins on two large bearings in the cases, protected by oil seals. They take all the engine’s force; after many hours they develop play and vibration appears.
What is this bearing made of?
Races and balls (or rollers) in hardened chrome steel, 100Cr6 type: a very hard steel that withstands the fatigue of millions of engine revolutions.
- Open bearing: unsealed, it is lubricated and cooled by the engine oil; clean oil is its best protection.
- C3 / C4 internal clearance: slightly more clearance than normal for a hot engine’s expansion; always refit the original clearance.
- Limit: it dislikes dust and old oil; running short of oil destroys it within minutes.
Why choose PROX?
ProX uses Koyo or NTN bearings, largely made in Japan in OEM factories, with the original internal clearance (C3 / C4).
When should you replace the bearings on your KAWASAKI KX 250?
Unusual vibration, a deep knock that follows engine speed or play in the con-rod: the bottom end needs a rebuild.
The manufacturer publishes no hour interval for this model: have the con-rod play checked at every piston change. Cross-Mania guideline: rebuild the bottom end every 2 to 3 top-end rebuilds.
Specifications and fitting tips
- Application: Crankshaft
- Built to exact OEM specifications for maximum performance and durability
- Include all bearings/seals required to replace the component
Cross-Mania tip: Heat the cases to remove and fit the bearings without forcing them, and replace the oil seals at the same time.
Compatibility
Check the exact model and year of your bike in the list below before ordering.
Fits:
KAWASAKI KX 250 2026
KAWASAKI KX 250 2025
KAWASAKI KX 250 2024
KAWASAKI KX 250 2023
KAWASAKI KX 250 2022
KAWASAKI KX 250 2021
KAWASAKI KX 250 X 2026
KAWASAKI KX 250 X 2025
KAWASAKI KX 250 X 2024
KAWASAKI KX 250 X 2023
KAWASAKI KX 250 X 2022
KAWASAKI KX 250 X 2021
23.CBS43051
14 Items
Specific References
Click on your bike to see all compatible parts.
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The bearings and oil seals that support the crankshaft in the crankcase.
PROX crankshaft bearing and seal kit for KAWASAKI KX 250, KX 250 X from 2021 to 2026
€104.90
Tax Included