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Grizzly 660 YFM660F 2002-2008
WORKS ON ALL 99-21 YAMAHA YZ 250 2 STROKE YEAR MAKE MODELS
contact us for a warranty return authorization
though they require the specified modification to the cylinder head itself
14771-107-020 14781-HA0-770
Yamaha WR250F WR 250F Intake Exhaust Valves Kit Gasket KIBBLEWHITE Seals Keepers Arctic Cat Grizzly 660 YFM660F 2002-2008Complete Set OEM Replacement Valves (All 5), MLS Head Gasket, & Kibblewhite RED Seals & Keepers Rev up your Yamaha WR250F with this complete valve and gasket overhaul kit for boosted performance and rock solid reliability. Fits Yamaha WR250F Years 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Replaces OEM# 5NL 12111 30 00 5NL 12112 30 00 5NL 12121 10 00 4TV 12119 00 00 4SV 12119 00 00, 5NL 11181 00 00 Features: BPRATV Aftermarket