Below are the models that this product is suitable for, please compare your model with the following models to ensure that the product is suitable for your model

Fitment:
Replacement for Yamaha Big Bear 400 YFM400FB 4x4 IRS 2007-2012
Replacement for Yamaha Big Bear 400 YFM400FBH 4x4 Hunter Edition 2008-2012
Replacement for Yamaha Big Bear 400 YFM400FBH 4x4 Hunter Edition IRS 2010
Replacement for Yamaha Big Bear 400 YFM400FBE 4x4 Exploring Edition IRS 2007
Replacement for Yamaha Big Bear 400 YFM400FBH 4x4 Hunter Edition IRS 2007
Replacement for Yamaha Big Bear 400 YFM400F 4x4 2005-2006
Replacement for Yamaha Big Bear 400 YFM400 2000-2002 2004
Replacement for Yamaha Big Bear 400 YFM400F 4x4 2000-2002 2004
Replacement for Yamaha Big Bear 400 YFM400FW 4x4 2003
Replacement for Yamaha Big Bear 400 YFM400N 2003
Replacement for Yamaha Big Bear 400 YFM400FH 4x4 Hunter Edition 2000-2002
Replacement for Yamaha Big Bear 400 YFM400H Hunter Edition 2001-2002

Replace part number: 4GB-11310-00-00, 5FU-11310-01-00
83mm Bore, 8.6:1 Compression Ratio

This product has good quality, you can use it with confidence, if you have any questions, you can contact us in time, we will definitely solve it for you as soon as possible