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Ships within 48 hours · Estimated delivery Nov 16 - Nov 21
Tooth Count: 16 Tooth
sports some new hardware
Fits B5M | RB6 | SRX-2 | YZ2 | KF2
Safety arming feature: Regardless the throttle stick position
You want it all
HPI Underhead F4.6 HPI1447 3347Y Tooth Count: 16 ToothHPI Racing underhead is constructed of silver aluminum. Replaces a worn or damaged underhead. Goes between the heat sink head and the crankcase. This is the part that the glow plug goes into. Specs: Diameter: 1. 40" (36mm) Thickness: . 31" (8mm) Requires: Installation following the engine manual
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