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HOT RODS Connecting Rod Kit for 660cc Yamaha Upgrade your engine’s bottom-end strength with the HOT RODS Connecting Rod Kit for select Yamaha models including the Grizzly YFM660F , Raptor YFM660R , and Rhino YXR660F . Built for performance and long-term reliability, this kit is a heavy-duty OE replacement designed to thrive at high RPM. Key Benefits Heavy-duty OE replacement connecting rods for dependable fit and function Certified 8620 AISI steel for superior strength Crankpins made from hot-rolled ASTM 4115 , case hardened to 58–62Rc Caged needle roller bearing designs for high-rpm longevity Big end design with side scalloping and vent slots to help minimize distortion Double-drilled small ends for extra wrist-pin lubrication and cooling Shot-peened to reduce surface stress risers and blend forging radiuses Double honed for an ultra-round bearing surface Made in the USA What’s Included Most rod assemblies are sold complete with rod, crank pin, crank pin bearing , top-end bearing , and silver-coated bronze phosphor thrust washers . Compatibility & Specs Engine: 4-Cycle, 660cc Riding Style: ATV/UTV Material: 8620 Steel Compatibility: Works with Hot Rods and OE crankshafts Weight: 2.18 lbs Dimensions: 7.55" x 3.54" x 1.96"
Heavy-duty OE replacement connecting rods
Certified 8620 AISI steel provides superior strength
Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to level of 58-62Rc
Features the latest in caged needle roller bearing designs for high rpm longevity
Uniquely designed big end uses strategically located side scalloping and vent slots to minimize bearing race distortion at high rpm
Small ends are double drilled to supply extra lubrication and cooling to the wrist pin bearing, which is especially important when the piston crown is close to the wrist pin bearing
Shot-peened to eliminate surface stress risers and to smoothly blend together the rod forging's radiuses
Double honing produces an ultra-round bearing surface for reliability at high rpm
Most rod assemblies are sold complete with rod, crank pin, crank pin bearing, top-end bearing and silver-coated bronze phosphor thrust washers