INNTECK Crankshaft Oil Seal for SUZUKI RMZ 250 2010-2027

On SUZUKI RMZ 250 from 2010 to 2027, the INNTECK OS134 crankshaft oil seal fits in place of the original part. The crankshaft oil seal seals the point where the crankshaft passes through the crankcase. A hardened or worn lip lets oil through and, on a two-stroke, lets air in as well.

Specifications

• Brand: INNTECK
• Manufacturer part number: OS134
• EAN code: 41330069
• Engine: 4-stroke

When to replace it?

• Oil seeping where the crankshaft comes out, behind the flywheel or the sprocket.
• Engine oil level dropping between oil changes with no other visible leak.
• Oil or black marks on the ignition side.

At every bottom end rebuild, and as soon as these symptoms appear.

Fitting tips

1. Drive out the old seal without scratching the housing or the crankshaft.
2. Grease the lip and press the seal in perfectly square, lip facing the inside of the engine.
3. Protect the lip as you slide it over the crankshaft thread or key.
4. Refit the cover with a new gasket.

Spare parts and items to plan

• Crankshaft bearings and seals : see the selection
• Ignition cover gasket : PROX · ATHENA
• Complete engine gasket kit : see the selection

Frequently asked questions

Do the crankcases have to be split?
Not always: on some engines, the ignition-side seal can be replaced without splitting the cases. During a rebuild, replace it along with the crankshaft bearing and seal kit.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
SUZUKI RMZ 250 2027
SUZUKI RMZ 250 2026
SUZUKI RMZ 250 2025
SUZUKI RMZ 250 2024
SUZUKI RMZ 250 2023
SUZUKI RMZ 250 2022
SUZUKI RMZ 250 2021
SUZUKI RMZ 250 2020
SUZUKI RMZ 250 2019
SUZUKI RMZ 250 2018
SUZUKI RMZ 250 2017
SUZUKI RMZ 250 2016
SUZUKI RMZ 250 2015
SUZUKI RMZ 250 2014
SUZUKI RMZ 250 2013
SUZUKI RMZ 250 2012
SUZUKI RMZ 250 2011
SUZUKI RMZ 250 2010