Hot Rods 4-Cycle Crankshaft Assembly - 4073 Yamaha ATVs 2004-2009 Brand_Rivco Products Includes hex/allen bolts and nuts

Includes hex/allen bolts and nuts of multiple lengths/sizes/types

with no pinching

Classic stepped performance headers 1-3/4" primary to 2" step with a 2 into 1 merge collector for maximum performance

Replaces OEM #3089546 and 3089249

Precision CNC-machined billet aluminum construction

Hot Rods 4-Cycle Crankshaft Assembly - 4073 Yamaha ATVs 2004-2009 Brand_Rivco Products Includes hex/allen bolts and nutsFeatures Sold complete with the original proven Hot Rods connecting rods, top end bearings (unless otherwise noted) and crankshaft webs Factory assembled and trued to OEM specifications; meets or exceeds OEM in performance and durability Complete and ready for installation Completely rebuildable with genuine Hot Rods connecting rods and bearings (unless otherwise noted) Gears are made at a quality level of DIN class 9 or higher Specs Product Name