INNTECK Crankshaft Oil Seal for HUSQVARNA CR 125, WR 125, WRE 125 1998-2013

On HUSQVARNA CR 125, WR 125, WRE 125 from 1998 to 2013, the INNTECK OS450 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: OS450
• EAN code: 41659977
• Engine: 2-stroke

When to replace it?

• Unstable idle, revs hanging or rising on their own.
• Gearbox oil level dropping, white smoke (clutch-side seal).
• 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
• Complete engine gasket kit : CENTAURO · ATHENA

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:
HUSQVARNA CR 125 2013
HUSQVARNA CR 125 2012
HUSQVARNA CR 125 2011
HUSQVARNA CR 125 2010
HUSQVARNA CR 125 2009
HUSQVARNA CR 125 2008
HUSQVARNA CR 125 2007
HUSQVARNA CR 125 2006
HUSQVARNA CR 125 2005
HUSQVARNA CR 125 2004
HUSQVARNA CR 125 2003
HUSQVARNA CR 125 2002
HUSQVARNA CR 125 2001
HUSQVARNA CR 125 2000
HUSQVARNA CR 125 1999
HUSQVARNA CR 125 1998
HUSQVARNA WR 125 2013
HUSQVARNA WR 125 2012
HUSQVARNA WR 125 2011
HUSQVARNA WR 125 2010
HUSQVARNA WR 125 2009
HUSQVARNA WR 125 2008
HUSQVARNA WR 125 2007
HUSQVARNA WR 125 2006
HUSQVARNA WR 125 2005
HUSQVARNA WR 125 2004
HUSQVARNA WR 125 2003
HUSQVARNA WR 125 2002
HUSQVARNA WR 125 2001
HUSQVARNA WR 125 2000
HUSQVARNA WR 125 1999
HUSQVARNA WR 125 1998
HUSQVARNA WRE 125 2010
HUSQVARNA WRE 125 2009
HUSQVARNA WRE 125 2008
HUSQVARNA WRE 125 2007
HUSQVARNA WRE 125 2006
HUSQVARNA WRE 125 2005
HUSQVARNA WRE 125 2004
HUSQVARNA WRE 125 2003
HUSQVARNA WRE 125 2002
HUSQVARNA WRE 125 2001
HUSQVARNA WRE 125 2000
HUSQVARNA WRE 125 1999
HUSQVARNA WRE 125 1998